Add an audit log to record when particular question enters and leaves hot list

Updating the Hot Network Questions List - now with a bit more network and a little less "hotness"!


List of lists changes reflected across sublists unexpectedly


if you buy two seats on a flight will you be able to bring on twice the carry-on luggage?

If I have bought X tickets, do I have X hand baggage allowances?


How to store operator in variable using javascript


How does TeX figure out whether a `-` should be typeset as unary, or binary?


Why do I get a NullPointerException in this code

What is a NullPointerException, and how do I fix it?


What is a word that means "someone who pretends to be your friend but is actually your enemy?"


Why can't "fi" be separated when being copied from a compiled pdf?


linear model without intercept : wrong r-square value?

Why I am getting different $R^2$ from R LM and manual calculation?


How does multithreading work for a java Servlet?

How do servlets work? Instantiation, sessions, shared variables and multithreading


cin.getline() is skipping an input in C++

Why does std::getline() skip input after a formatted extraction?


Why only can get the whole sliced reverse list omitting start and end?


Is the commutator subgroup of the commutator subgroup still a normal subgroup?

Groups in derived series are normal in the whole group


Querying a collection of expando objects using Dynamic LINQ


How to get random subset of rows of data frame


Is there a way to merge two files smartly?


How can I check if elements between lists are equal?


How to make cut in cylindrical shape without braking up roundness?


Can macOS Mojave run 64-bit version of Adobe CS6?

Will older Adobe Applications (CS5/CS6) work with Mojave?


WebRequest HTTP error code without try-catch (VB.NET)

.Net HttpWebRequest.GetResponse() raises exception when http status code 400 (bad request) is returned


Correct spelling of Polish surname Mahowski?

Correct spelling of Polish surname Dziubenofska?


Figure caption as name for digital signature

Adding a signature on an online job application


Ubuntu Core/Snappy affected by Meltdown and Spectre?

Will Ubuntu get patched against Meltdown and Spectre?


Is there a way to hide my profile from Google search?


What are the advantages of TeX Live over MiKTeX?


Fields of objects in list populated with the same values

What is the difference between class and instance attributes?


How can I install Windows software or games?


Number of irreducible quadratic polynomials over a finite field

Number of monic irreducible polynomials of prime degree $p$ over finite fields


Are beings in a simulation actually "beings" at all?

How does the simulation hypothesis relate to the ethics of simulated violence?


New email template: small typo or you love us? :p

Notification email from stackoverflow contains "<3" after zip code


Discrete Math - If two natural numbers divide each other, then they are equal

Prove if $a\mid b$ and $b\mid a$, then $|a|=|b|$ , $a, b$ are integers.


Is there a Windows 7/8/8.1 like automatic window sizer?


$\operatorname{Supp}(M)=V(\operatorname{Ann}M)$ if $M$ is finitely generated


Regular expression for phone number with special characters

How to validate phone numbers using regex


SO Japanese doesn't show up very well in the SE list of all sites


What is the most efficient siege strategy?


Which characters shouldn't be used in a filename?

What are reserved filenames for various platforms?


How do I turn the white flashing between pages in chrome to black?

Prevent white screen before loading page in chromium?


How are the measurements used by Nielsen evolving to meet new methods of content delivery and viewing?


Does the concept of the Abrahamic god exist in the galaxy far, far away?


$R/(a) \oplus R/(b) \cong R/\gcd(a,b) \oplus R/\operatorname{lcm}(a,b) $

Proving that $\mathbb{Z}_m\oplus \mathbb{Z}_n \cong \mathbb{Z}_d\oplus \mathbb{Z}_l $ as groups, where $l=\mathrm{lcm}(m,n)$ and $d=\gcd(m,n)$


Reduce the storage space taken up by "System" on my iPhone 6s without restoring and setting up iPhone as new

Why is so much "Other" space occupied on an iPhone 4?


How much should I tip in restaurants in Germany?

Is tipping mandatory at Restaurants and Bars in Germany?


What does: r, g, b, *a = img_list[generated_number]: mean in python3?

What does ** (double star/asterisk) and * (star/asterisk) do for parameters?


Do sets, whose power sets have the same cardinality, have the same cardinality?


Prove that there exists irrational numbers $x$ and $y$ such that $x + y$ is rational, without using subtraction


Is "Greenplant are proud sponsors of..." correct? How is it different from "Greenplant proudly sponsors.."?

Is a company e.g. Pfizer, singular or plural?


Show that for a gradient system $\bf\dot x= f(x)$, $\frac{\partial f_i}{\partial x_j}-\frac{\partial f_j}{\partial x_i}=0$ for $1 \leq i, j \leq d$

$\frac{\partial f_i}{x_j}=\frac{\partial f_j}{x_i}\implies(f_1,\ldots,f_n)$ is a gradient


How can I create a Set of IDs from a list of sObjects?

How can I efficiently generate a Set from a List structure?


Cubot S208 Avoided Bad Internet Connection, How do I disable?

What does "avoided poor Internet connection" mean?


Ideal algorithm for finding all paths in a graph


how write in script bash: su - user, command, password, without ask me password?

Supply SU password in a bash script, within the script?


Linking problems with g++, but not with cc

How to resolve the linker error in C++ compiler


error in script for counting number of occurences

error in count script for number of occurences


What is the difference between iterable and enumerable?

Distinction between iterator and enumerator


When validating my css I get a Parse Error

W3C Validator error: Parse Error opacity=60


How to identify progressive waves by their equation

How to determine whether a wave is travelling or standing?


You've got a little markup in your link text

Flag apron shows superfluous closing anchor tag


Multiple measurements of the same quantity - combining uncertainties


Where's the recommended place to put small python convenience modules


Dual-Boot Ubuntu 14.04 and Windows 7 on FakeRAID Installation error - question marks "????..."


Connect 12V digital LED strip to Arduino

How can I drive 12v LEDs from my Arduino Nano?


At very high speeds, why don't many things become black holes due to increase in mass and reduction in volume?

If a mass moves close to the speed of light, does it turn into a black hole?


Someone is duplicating/reproducing my site what can I do?


Can not execute sudo or gksudo comand to run nautilus to edit root file on ubuntu 17.10

Why don't gksu/gksudo or launching a graphical application with sudo work with Wayland?


How do I make my function behave more like Plot?

Syntax highlighting for your own functions


Is There A Way To Make These Variables Switch From True To False, Or Am I Doing It Wrong

What's the difference between passing by reference vs. passing by value?


Epiphany hat in another language except on Winterbash Hat List

A list of what each of the Winter Bash 2016 hats are named after


How can I change HTML attribute names with jQuery?


How does one peel and puree chick peas with a food mill for hummus?

How to get a smooth paste from ground chickpeas?


Find the limit if it exists of $S_{n+1} = \frac{1}{2}(S_n +\frac{A}{S_n})$


What are the special features of the recently announced Circle K Power Cube

What is the difference between the Circle-K and Lawson Power Cube?


Fix - Pink textures. why are some of my textures pink and some not?

Why are all the textures in my file pink?


Android Studio 0.8.2 error "Failure [INSTALL_FAILED_OLDER_SDK]" when trying to load app on phone

Failure [INSTALL_FAILED_OLDER_SDK] Android Studio


Unable to remove accented special characters in a string despite using regex

What is the best way to remove accents (normalize) in a Python unicode string?


Voltage applied to secondary is not matching calculation

Output voltage calculation for full wave bridge rectifier


Removing Non-Digits on an Input with type="number" causes Digits to be removed too

Regex to remove letters, symbols except numbers


jQuery: how to get which button was clicked upon form submission?


Why does tikz cycle not work and why are these two sets of nodes different?

Cycle option when drawing between nodes in TikZ


How to remove mystartsearch.com from browsers

Stubborn Startup Page - MyStartSearch - mystartsearch.com


How do you remove a "duplicate" label from a question?

Someone flagged my question as already answered, but it's not


Win10 Unable to install .NET Framework 3.5


The use of "were- should- had” at the beginning of sentences instead of “if”


Get table names using SELECT statement in MySQL


How to include local jar files in Maven project

Can I add jars to Maven 2 build classpath without installing them?


VS2010 does not show unhandled exception message in a WinForms Application on a 64-bit version of Windows


Proof by Induction: Prove that $2^n > n^2$, for all natural numbers greater than or equal to $5$


Can be ∑P/k! be broken down in a expression without the sum?

Finite Summation of Fractional Factorial Series


How to restore the down arrow icon on the Downloads folder in the home directory?


Are there general methods that can be applied when using the Borel-Cantelli Lemma, to get a statement about a sequence of random variables?

Revision of Borel-Cantelli, $(X_n)_{n \geq 1}$ sqn of $\geq 0$ identical RVs with $E(X) < \infty$ then $X_n/n \to 0$ a.s., are my arguments correct?


getLine1Number() Returns blank, not null

MSISDN : Is it a SIM Card Data? Why all The Provided Function (from Blackberry and Android) to fetch MSISDN not reliable?


LINQ's Distinct() on a particular property


'Hello everyone' Vs. 'Hello everybody' Vs. 'Hello all'

"Everyone" versus "everybody" in a sentence?


Fujitsu S1300i advances document but doesn't scan

S1300I scanner issues under Ubuntu 16.04 using Sane


Cant click on heads up notifications on Lollipop Nexus 5

Two-finger swipe 'breaks' heads-up notifications on Lollipop?


Why do programs in Unix-like environments have numbers after their name?

What does the number in parentheses shown after Unix command names in manpages mean?


virus attack on i3,windows 10,which attacks through the browser

How can I remove malicious spyware, malware, adware, viruses, trojans or rootkits from my PC?


For an irrational number $a$ the fractional part of $na$ for $n\in\mathbb N$ is dense in $[0,1]$

For $x\in\mathbb R\setminus\mathbb Q$, the set $\{nx-\lfloor nx\rfloor: n\in \mathbb{N}\}$ is dense on $[0,1)$


Did humans still produce electricity for the machines when Smith overwrote himself on to them?

Why Did the Machines Even Bother With a Matrix?


Filters and their refinements vs nets and their subnets


How to iterate through two lists in parallel?


What characters do I need to escape when using sed in a sh script?


How do you install Grub2 on a USB stick?


Analog circuit for multiplying in the frequency domain

Convolution perfomed by an analog circuit


How Do I Include References in an ASP.NET web site?

ASP.NET Website's BIN directory and references


input() error - NameError: name '...' is not defined


Are there wizards with speech impediments?


Inputting CSV in QGIS graphical modeler and defining its geometry

CSV list as input parameter in QGIS 3.0 Processing Modeler


Should I follow what was mentioned in the “duration of stay” or in the "validity of the visa"?


hashCode() for an array of objects for use in HashMap


What do for upgrade from ubuntu 19.04 to 20.04 and if don't work repository on 19.04

Can I skip over releases when upgrading?


I am trying to remove the background from the image in PS

How do I trace an image and place it over a different background?


Connect Android phone with Ubuntu PC through USB

Ubuntu 14.04 and Android, can't see phone on my computer


How does one calculate $\int_0^1 \frac {\arcsin(x)}{x}dx$?


Is it possible to include one CSS file in another?


If background applications can't launch automatically how does Cardcase launch on a location change?


How does one access a control from a static method?


How can I start qBittorrent on system boot?

How do I start applications automatically on login?


random number generation and probability problems

Random number generation and probability


Whats the simplest way to edit and add files to "/var/www"?


Difference between luatex and lualatex binaries

How can latex and pdflatex be both symbolic links to same executable (pdftex) and not behave the same?


Completely remove the broken installation and merge its partition

How can I edit my Grub bootloader entries (Hide, Rename, Remove)?


Declare and use variable in JSF2 xhtml page

Defining and reusing an EL variable in JSF page


In Java 8 how do I transform a Map to another Map using a lambda?


Definition: smallest $\sigma$-algebra containing a random variable

$\sigma$ algebra of collection of random variables


dictionary with values only evaluated when selected

Replacements for switch statement in Python?


Probability: finding the expectation of "overlapping events"

Expected time to roll all 1 through 6 on a die


Cannot convert from XXX** to const XXX**

How to convert "pointer to pointer type" to const?


If $dF_p$ is nonsingular, then $F(p)\in$ Int$N$

Let $M$ be a smooth manifold and let $N$ be a manifold with boundary. If $dF_{p}$ is an isomorphism, then $F\left(p\right)\in\mbox{int}M $.


What causes the 'Connection Refused' message?


Strange behavior of closure in JavaScript

JavaScript closure inside loops – simple practical example


Multiple Syntax Errors When Referencing Another Class in Include File

Resolve build errors due to circular dependency amongst classes


Literal initialization for const references


How do I install an individual package on a Linux system?


Is there any PERFORMANCE - difference between inner join and simple join?


Is there a recommended way to put a copyright notice in a ~.blend file?

Metadata / notes / comments in .blend files?


In javascript how can I compare two timestamps to see how many days difference they are

How do I get the number of days between two dates in JavaScript?


Word for 'over-reacting in a moody way and leaving a room while everyone is watching'

Is there a word or an idiom for barging in a room with anger?


Let $x_0=0$. Define $x_{n+1}=\cos x_n$ for every $n\ge 0$

What does recursive cosine sequence converge to?


Is it possible to request a passport stamp when traveling between Schengen countries?

Getting passport stamps inside Schengen Area


Python: Difference between list.extend and list.__iadd__

Don't understand why UnboundLocalError occurs (closure)


$\lim \limits_{x \rightarrow \infty} \sqrt[]{x^2+2x+3}-\sqrt[]{x^2-x+5}.$


What does this mean & what impact does it have: Failed to download repository information

How can I fix a 404 Error when using a PPA or updating my package lists?


How do I make 2 lists correspond to each other?

How do I convert two lists into a dictionary?


Why the OLS parameters of a linear regression are correlated?

Correlation between OLS estimators for intercept and slope


fatal: Not a git repository (or any of the parent directories): .git


Is my computer capable of running Ubuntu? If so, what version is recommended?

What are the system requirements for each flavour of Ubuntu Desktop?


Laptop model and make compatibility with ubuntu? HP ENVY x360 (Convertible 13-ag0xxx )


Turbo Boost Technology Monitor is EOL so what can I use to monitor Turbo Boost on my CPU?

How to see if turbo boost is working on I7 860 CPU?


What is the next step in solving the time derivative of expectation value of the momentum of a particle

Am I doing this right? Finding the time derivative of expectation value of momentum


Can a Syrian citizen get a US visa after the current administration revoked the travel ban?

Travelling To The US under the Muslim ban


Unknown modifier '(' when using preg_match() with a REGEX expression

Warning: preg_replace(): Unknown modifier


How to find the 'sizeof' (a pointer pointing to an array)?


Is there a possible hidden benefit to having many duplicates on Stack Overflow?


Is $\Bbb Q_n[x]$ (all polynomials from $\Bbb Q[x]$ with degree $≤n$) a vector space over $\Bbb Q$?


Iran’s Mahan airline defies sanctions in shadowy aircraft deal


Use Eisenstein´s criterion to show that $P(x)=x^n+5x^{n-1}+3$ is irreducible.

$f(x)=x^n+5x^{n-1}+3$ can't be expressed as the product of two polynomials


Notification panel doesnt like Careers 2.0

Opening Careers notification crashes app


load extra html into index and call them from index

Event binding on dynamically created elements?


Show that a finite group with certain automorphism is abelian


How can I merge properties of two JavaScript objects dynamically?


How to convert a list into list of lists?

How do you split a list into evenly sized chunks?


Differential equation problem. Integrating the logistic equation.


Deleting columns from a data.frame where NA is more than 15% of the column length

Delete columns/rows with more than x% missing


How can I connect to smb share after connecting to VPN?

How do I share samba via Open VPN? Is that possible?


Why are my "other" flags not getting reviewed?


Adding two distributions with proportional means and standard deviations

Finding the distribution of sum of Lognormal Random Variables


How can I find a png image's boundary of using objective-c?


Local html file AJAX Call and jQuery Woes


Show that if $ A(t) \in \mathbb{R ^{n×n}}$ is a differentiable function of $t$ then $\frac{d(det A(t))}{dt}$


Animating plane with position, rotation and scale from data inside a text file

Can object parameters be set from data file?


In Blade Runner why is Earth in such decay vs Offworlds that are (apparently) much better?

Are the off-world colonies really a "golden land of opportunity"?


What is the difference between lands and mana?


Syntax error due to using a reserved word as a table or column name in MySQL


Listening on Serial Port already in use by another application

What's a good, free serial port monitor for reverse-engineering?


Windows 10: too much data on system disk

750Gig Hard Drive shows full with only 315Gigs used


How do I search files using grep for multiple strings (intersection search)

How to run grep with multiple AND patterns?


Installed Teamviewer using a 64-bit system, but I get a dependency error


No option to remove Bluetooth device in iOS Settings app?


Can I use a formatted external hard drive on Windows?

Format USB drive to NTFS so it is usable under Windows


ssh: Allow root to login without password

How to set up passwordless SSH access for root user


Challenging intuition: supremum of the set of all intersections with the x-axis

Prove: the set of zeros of a continuous function is closed.


Is it possible to obtain data on the evolution of questions' views over time?


How can I center text (horizontally and vertically) inside a div block?


What does the keyword this reference in this code sample?


How to remove Ubuntu and put Windows back on?


Error when reprojecting raster (warp) QGIS


What is the radius of convergence of the Taylor series?

What is the radius of convergence of the Taylor series of $\frac{2\tan x}{1+4x^2}$ around $x=0?$


If gravitational radiation (or anything) cannot escape a black hole, how can it produce redshift or curve spacetime?


character degrees of finite simple groups: an elementary question


Exception in thread "main" java.lang.NullPointerException - at Client.(Client.java:64) at Client.main(Client.java:105)

What is a NullPointerException, and how do I fix it?


Find matrix of linear transformation in the standard basis

Find the representing matrix with the respect to the standard basis


Registry Pattern, Singleton, and a Fatal PHP Error

PHP Fatal error: Using $this when not in object context


Casting an address of subroutine into void pointer

Casting a function pointer to another type


How does JavaScript treat parameters in nested functions?


Agreeing with negative sentences - "Me neither" or "Me too"?


Get coordinates of object following curve using follow path constraint

Setting constraints causes the location of the constrained objects/bodies not be accessible


HMAC for encrypted authentication token: recommended iteration number


How to customize the frame background color and borderline width

How does one change the frame size and colors in the frame option of titlesec as in MWE?


I found a file path, but I can not open it

Where is the Ubuntu file system root directory in Windows Subsystem for Linux and vice versa?


Null pointer exception in Android caused by a button


Is it safe to use a power adapter with different input power for my router?

Is it safe to use a power supply with a different laptop?


Question on binomial expansion - divisibility

How to show $\lceil ( \sqrt3 +1)^{2n}\rceil$ where $n \in \mathbb{ N}$ is divisible by $2^{n+1}$


C++ No viable conversion from string to const char *

How to convert a std::string to const char* or char*


What is explicit interface member implementation and why

C# Interfaces. Implicit implementation versus Explicit implementation


Can I travel to Italy with two passports: an EU passport and non EU?

I have two passports/nationalities. How do I use them when I travel?


Parsing JSON with jQuery Mustache template

Alternate background colors for list items


No such file or directory when I try to cd to a directory with two words in the name

How do I cd into a directory in the home folder?


How do I restrict a specified SSH user to connect only from one IP or hostname?


Using windows server 2016 essentials without licence

Can you help me with my software licensing issue?


Some domains receive my emails, others aren't sent

Fighting Spam - What can I do as an: Email Administrator, Domain Owner, or User?


customizing file manager's top bar in gnome

Show address bar w. full path in Nautilus instead of breadcrumbs bar


Create random list of integers in Python


How to shutdown android via ssh command?

What's the best way to restart Android via command line (remotely)?


Show that all complex numbers $z \not= -1$ can be written as $z=\frac{1+it}{1-it}$

Prove that every complex number with modulus 1 and is not -1, has this property


How does the number of sticks of RAM influence speed, for the same total amount of RAM?

Is it faster to have four times 2 GB or two times 4 GB of RAM with a dual-channel mainboard?


How to show/hide special folders in home directory nautilus

How can I hide directories or files without changing their names?


What is the difference between View.getMatrix() and ImageView.getImageMatrix()?

What is the difference between ImageView.getMatrix() and ImageView.getImageMatrix()?


Brightness Control Issue on Ubuntu 17.10

Display brightness control not working in 17.10


Alter default audio output device from command-line

Easy way to switch default sound output device


Fastest way to make division between a number and elements in a list


$|f(z)| \leq M|z|^n$, then $f$ is a polynomial of degree $\leq n$

Entire function bounded by a polynomial is a polynomial


How to set custom name for Exported Excel file in Javascript

Is there any way to specify a suggested filename when using data: URI?


What's the logic behind the fake/real computer chip?


Can I leave a garden hose under pressure for long periods of time?

Is there a setup where I can leave the water on all summer?


I forgot my apple iPhone 5 iCloud username and password and need help resetting


Unable to mount Windows (NTFS) filesystem due to hibernation


Is the current screen resolution saved to a file anywhere? (window 7)

Registry change to set screen resolution


why it so important do disable THP ( transparent huge pages ) on database servers?

Does anyone actually use and benefit from transparent huge pages?


Should I hide certain education history on my CV/resume?

Should one list incomplete degrees on a CV?


The provided host name is not valid for this server on OVH Web Server

Understanding the Basic Context of Trusted Hosts


Combinations with different repetitions allowed


Button action monitored with progress bar


Developer documentation is empty after upgrading to lastest iOS sdk


Proving $1^3+ 2^3 + \cdots + n^3 = \left(\frac{n(n+1)}{2}\right)^2$ using induction


Why does a factory reset keep the operating system updated?

On system restore, will I lose my software updates?


mails fom my mailserver go to spam folder of hotmail.com

How to send emails and avoid them being classified as spam?


Statistical modeling resources for a beginner

Tips and tricks to get started with statistical modeling?


RHEL Java Application returns "No space left on device" but only 3% used


Unable to login to KDC server without password prompt

SSH login without password with kerberos


Make an Ubuntu bootable USB drive for a PC using Mac?


Why is every second breaker out in my panel?

Half of my lights and oulets are not working after heavy winds?


How to fix "Headers already sent" error in PHP


To have math in section's name with doi -package (hyperref)

Hyperref warning - Token not allowed in a PDF string


My Galaxy Tab 3 will only charge from the wall adapter from Samsung

Why are USB cables of two different OEM's different


How to get stdout into a string (Python)

Store output of subprocess.Popen call in a string


Combine hashes with identical symbol values


JS: How to add negative numbers in javascript

How do I add an integer value with javascript (jquery) to a value that's returning a string?


How to get % cpu and % memory of process during OpenSSL encryption

How can I measure how much CPU and RAM has been used by a command?


Where will the grid-tie power go if it's not connected to the grid?

Using Constant Current Power Supply to control Load Output of a Grid-Tie Inverter


Can i Hide a field from a lightning:recordForm and populated before submitting? Im getting the fields from recordTypeId

How can I dynamically assign a value to a lightning record form?


What does it mean for a folder to have suid permission?

SUID has no effect on directories with Linux


Macbook Pro volume greyed out -- no internal speakers available


Does updating to 17.10 from 17.04 removes all my softwares?

Will upgrading Ubuntu remove installed software?


When should I use os.name vs. sys.platform vs. platform.system()?

When to use os.name, sys.platform, or platform.system?


Why is there "data" and "newtype" in Haskell?

Difference between `data` and `newtype` in Haskell


Alternating Sum of Binomial Coefficients Squared

Alternating sum of squares of binomial coefficients


Story about a guy living same day over again until he falls asleep under an aluminum boat?

Short story where a man discovers he's living in a fake world


Filmic Log: How to render a texture to appear identical to the input image?

How to mix a jpeg background image with a 3D scene generated using Filmic Blender?


misconception about prototypal inheritance JS


How to permanently set environmental variables


What filesystem to use when using both Windows and Linux?


How can I open programms e.g. Skype minimized with a command line?

How do I start skype in the system tray?


Reading prepopulated SQLite database from Android Assets Folder


"Confirm you are ..." vs. "Confirm that you are ..."

A case of optional “that”: “check the” vs. “check that the”


Simpler derivation of $\sum_{n=1}^\infty \frac{1}{n^2} = \frac{\pi^2}{6}$

Different methods to compute $\sum\limits_{k=1}^\infty \frac{1}{k^2}$ (Basel problem)


How do I resolve unmet dependencies after adding a PPA?


A random only makes the thing thats supposed to move in a diagonal line?

Random number generator only generating one random number


Copy tables from spreadsheet software directly as new table format

Can't paste data to question, get prompted for Image?


What is the difference between pylab and pyplot?

Which is the recommended way to plot: matplotlib or pylab?


Javascript working in Dreamweaver but not in Browser

jQuery load works on Dreamweaver but not in browsers


Sort NSArray with multiple NSDictonaries in it

Sorting NSArray of dictionaries by value of a key in the dictionaries


Is a vacuously true argument a valid argument?

Could an argument with false Premises and a true Conclusion be logically valid?


In how many ways can $4$ books be removed from a bookshelf with $15$ books such that no two adjacent books are chosen?

In how many ways can you choose $k$ numbers out of $\{1,2,3,\dots,n\}$ so none of them is consecutive?


"is" operator behaves unexpectedly with integers


If row spaces of two $m\times n$ matrices are equal, then matrices are row-equivalent

Why do row equivalent matrices have the same row space?


Recursive sequence of square roots of previous elements

Let $a_{n+1}=\sqrt{a_1+a_2+\cdots+a_n}$ .Prove that $ \lim\limits_{n \rightarrow \infty} \frac{a_n}{n}=\frac{1}{2}$


Why is there no absolute maximum temperature?


What is this called and best practices of UI/UX?

Name for widget with side-by-side available/selected listboxes?


Why aren't any slimes spawning in my slime farm?


Strange result when removing item from a list while iterating over it


How to highlight (color/draw attention to) a particular snippet in Minted


Deriving Chinese Remainder Theorem from gcd Bezout identity


Downgrade a new Mac from OSX 10.14 to 10.11?

Is it possible to install an old version of Mac OS on a new Mac?


How to select the entire set of images to put into the video editor

Blender VSE - import multiple rendered PNG frames?


What would make comments on post disappear?


bmatrix brackets too tall when using package setspacing and setting \doublespacing


Implications from $f(z)\in\mathbb{R} \Longleftrightarrow z\in \mathbb{R}$

Show that an entire function that is real only on the real axis has at most one zero, without the argument principle


How do I match any character across multiple lines in a regular expression?


How do I have my flexbox center on a page?


Can a field reference two different tables?

Join table depending on value of column in main table


how to add asp.net validations in visual studio 2012?

ASP.Net 2012 Unobtrusive Validation with jQuery


jquery not working on ajax loaded content

Event binding on dynamically created elements?


Problem to launch java at Debian: "error while loading shared libraries: libjli.so"


Is UK transit visa required for a permanent resident in Schengen?

Travelling through UK, what is considered a "common format residence permit"?


How do I reset a lost administrative password?


How do I determine the country an iPhone was purchased in?


N/A (Not Applicable) cases, How to deal with it?

How is missing data calculated on Likert Scale?


how to use special utf-8 characters in submodules?

Japanese and Russian Characters in the same Document


date.js - get monday of given week by date

JavaScript - get the first day of the week from current date


Difference b/w Taylor and Maclaurin Series

What is the difference between the Taylor and Maclaurin series?


What's the shortcut to delete a word "forward" in a unix terminal?


LED : calculation of optical power[mW] from luminous intensity[mcd]

SMD LED: How to calculate optical power (in mW) from luminous intensity (in mcd)?


I do not understand how to remove the null pointer exception

What is a NullPointerException, and how do I fix it?


Prior and posterior distributions involving a prior Beta distribution

Help me understand Bayesian prior and posterior distributions


I have a Schengen visa which is valid till 20th Nov 2018. Can I apply for another Schengen visa for the same period?

Can I apply for two Schengen visas if I have two subsequent trips within a short period?


A comparison between Grade, Mark, Score and Point


Work around an issue or workaround an issue?


Getting a stack overflow exception when declaring a large array


Why does Client Height value doesn't apply to other elements?


How to implement fast inverse sqrt without undefined behavior?

What's a proper way of type-punning a float to an int and vice-versa?


float point multiple and divident precision problem


Which is correct, "you and I" or "you and me"?


Using a hyphen when describing measures (e.g., a 300-meter asteroid)


Serve up PC hard drive as USB mass storage


Example of Noetherian ring over which the Euclidean algorithm is not valid.


Java Null Pointer exception on scanner.nextint()


What font is being used in the latex document

How do I find out what fonts are used in a document/picture?


How to show that $x^2\equiv 2 \pmod {11}$ has no solution.

When is $2$ a quadratic residue mod $p$?


Why doesn't this simple piping with awk work?


Force 'openany' half way through document

Remove blank pages in twosided book class without openany


Reverse X-axis numeric labels in JFreeChart


Retrieving special InnerText from HTML using Regex in C#

RegEx match open tags except XHTML self-contained tags


PHP import CSV containing single quotation marks


Can we prove that $K_n$ is Hamiltonian for all $n\geq3$?

Show that if $n\geq 3$, the complete graph on $n$ vertices $K_n$ contains a Hamiltonian cycle.


I am having very slow performance running Blender

Blender 2.78 with Windows 10 lags when interacting with the UI


given $I_{n}=\int^1_{0}x^n\sqrt{1-x^2}dx$, then finding value of $ \frac{I_{n}}{I_{n-2}}$


Definition of a primary ideal in a commutative ring

Primary ideals confusion with definition


White Screen on a Frame with Thread.sleep()

java thread.sleep puts swing ui to sleep too


Ring as a finite dimensional Vector space over a field K

If $A$ an integral domain contains a field $K$ and $A$ over $K$ is a finite-dimensional vector space, then $A$ is a field.


Are there any words in the English Language that have three of the same letters together?

Is "princessship" a real word? Are there any other words which have the same letter 3 times consecutively?


Split a large file into smaller files and then integrate them to get the original file

How to split larger files into smaller parts?


What are the recommended textbooks for introductory calculus?


How to get a DescribeSObjectResult from a DescribeFieldResult

Finding the SObjectType from the SObjectField


Reference - What does this error mean in PHP?


How to concat data into one object in JS?

How can I merge properties of two JavaScript objects dynamically?


How do i get initial screenshot of a video?

Getting a thumbnail from a video url or data in iOS


Where is "tofu" for "font fallback box glyph" coming from?

What do you call the phenomenon where a rectangle □ is shown because a font lacks a glyph?


When is unbalanced data really a problem in Machine Learning?


How can we say charger's output is 5V and 2.1A without giving resistance?

Choosing power supply, how to get the voltage and current ratings?


How to detect whether a string is present in stdout without affecting the output?

How to grep a program's output but also echo the output normally?


Javafx I get an error only when I add onAction fields to my buttons

What is a NullPointerException, and how do I fix it?


Virtual Machine does not start an more on Ubuntu 16.04

VirtualBox - RTR3InitEx failed with rc=-1912 (rc=-1912)


Plotting simple ODE system phase portrait

Cleaner Approach to Plotting Multiple Solution Curves on Phase Portrait


Is there any sun-color that gives humans "Kryptonian" powers?

In the DC Comics Universe, What Happens to Earthlings Under a Red Sun?


Any real life demonstrations of radioactive decay?

Can nuclear transmutation be observed in real time?


What is the scope of variables in JavaScript?


How can I turn a company page into a showcase page?

Convert LinkedIn page into showcase page


What is happening when iphone application launched?

iPhone app launch time, lifecycle question


How to handle a question that is being edited to make a new question?

Exit strategies for "chameleon questions"


Drawing an arrow or a solid dot on a curve?


Can't boot without Flash Drive plugged in


What is this weird colon-member (" : ") syntax in the constructor?


Ubuntu 18.04.3 LTS install issues. Can't connect to hyperV install. Also can't install from USB

Errors from nouveau when installing or booting from live usb


How to delete all emails from a mailbox on iPhone

How can I “Delete All” from Inbox mail folder?


What is the effect of setting sensor true in Google Map APIs?

What is the `sensor` parameter for in the Google Places API?


Error LNK1104 when upgrade from VS2008 to VS2010

VS2008 upgrade to VS2010 "cannot open file 'mfc90d.lib'"


How to look up a symbol or identify a letter from a math alphabet or other character?


Bayes Theorem: How to get an intuition for it?


Does Captain Marvel only transform if the lightning strikes him?

Can Shazam/Captain Marvel's transformation be prevented by a roof?


C++ : What is the usage of int('0') in this code?

How to convert a single char into an int


Why is it always raining in Blade Runner universe (Los Angeles)?

Why are both Blade Runner films largely shot in darkness?


What exactly are and what's the relation of the Pokémon with the environment?


Coloured cells in Tabular printing over table lines

Adobe Reader and xcolor within a table breaks the line render


How can we be sure if Universe has exploded with big bang? Can't it be implosion?


Could humans in the LOTR Universe perform magic?


Cant login to ubuntu 16.04 (this is fifth time in last week)


How to prevent a coauthor from stealing the article?


How do you feed as a vampire when everyone is attacking you on Skyrim Elder Scrolls Xbox 360 version?

As a stage 4 vampire, how can I feed without getting noticed?


Allow "suggested edits" to be less than 10 characters

Change this behavior to allow for spelling corrections and the like: "Edits must be at least 6 characters"


Why is Squeeze theorem with ≤/≥, rather than ?

A question about using the squeeze theorem?


Moving the cursor and printing characters in console doesn't work with sleep

Why does printf() not print anything before sleep()?


Why did all of my holiday stuff disappear from Tiny Death Star?


Dual booting WIndows 8.1 and Ubuntu 14.04 with UEFI on a system that isn't preinstalled?


Obtaining the text from a drop-down box?


"I hope there is no error in my essay" vs "I hope there are no errors in my essay?"

"There are no comments" vs. "There is no comment"


jQuery Validate Plugin - How to create a simple custom rule?


Why should I use gksudo for Gtk apps instead of sudo?

What is the difference between "gksudo nautilus" and "sudo nautilus"?


Enterprise Wiki with metadata navigation is showing many errors and problems:-

Metadata Navigation and Filtering showed up for one time only


commutator of free group has infinite rank

Commutator subgroup of rank-2 free group is not finitely generated.


obtaining real roots of negative numbers in a long expression

Finding real roots of negative numbers (for example, $\sqrt[3]{-8}$)


Which words count for a double word score?

Are tile bonuses counted twice if 2 new words are formed?


CrystalDiskMark vs Windows File Copy Performance

Why do Windows file transfer speeds top out at around 1.5 gigabytes /second?


Gmail marks all my emails sent by exim4 as spam


Testing for nil in Objective-C -- if(x != nil) vs if(x)


Add "newest (my tags)" filter on Android app


Using DateTime?.Value.TimeOfDay in LINQ Query


Can I hide a HTML tag by the content/value it contains?

Is there a CSS selector for elements containing certain text?


Is a biometric passport required for layover in the USA?

What kind of passport do I need when entering the USA?


Repeating (or not) "to" in a sentence involving infinitives set in parallel


How can I add and remove items from my set concurrently?


why is the statement in finally block executed despite using return in try block

Does a finally block always get executed in Java?


Changing the style of the first *typeset* line of a paragraph


Strange Java null behavior in Method Overloading


How can I find out the name of user who has asked the most questions on Stack Overflow

Where can I view the user with the most questions?


An elementary question about cardinal arithmetic without AC

Does $k+\aleph_0=\mathfrak{c}$ imply $k=\mathfrak{c}$ without the Axiom of Choice?


How do we know the age of Cosmic microwave background?


How do I iterate over the words of a string?


Difference between capacity and output current rating

Does mAh measure how long a battery would last?


Error using º and ' in bibliography entry title

! LaTeX Error: Command \textdegree unavailable in encoding OT1


Invalid postback or callback argument. Event validation is enabled using in configuration or

Invalid postback or callback argument.  Event validation is enabled using ''


Installing Wi-Fi driver for Realtek Semiconductor RTL8723DE Device [10ec:d723]


What is the difference between a bound state and a resonance state?


MongoDb whether to retiain _id or not in case of unique profile name required in the document


NullPointerException accessing views in onCreate()


Solve equation which is in string format

How to evaluate a math expression given in string form?


Instant kernel crash when using `+=` on `SparseArray` with repeated entries


What are the antonyms of "append" and "prepend"?


How to run debian.iso on Windows using qemu?

Running virtual linux using qemu on windows


no exports were found that match the constraint:ContractName

Error message "No exports were found that match the constraint contract name"


Why the non-root user can't login with a key in putty?


Finding latex class name using python regex

My regex is matching too much. How do I make it stop?


How can I do research mathematics without enrolling at a university?

Is it possible take take part in a research project if I'm not a part of a university?


Administrator can not take ownership of his files and folders

Unable to delete or take ownership of folder (Windows 7)


Change cell text color based on cell value in lightning:datatable

How do I get lightning:datatable to do some undocumented thing X?


Do Ability Score Limits permanently change from features that change it?

Can you ever use an ASI to increase an Ability Score above 20?


only regular expressions : i want the lastnames that start with A or R

linux : find a lastname that has 5 characters only in a text


PS4 controller won't connect after connecting to PC

PS4 Controller not connecting to PS4 and won't reset?


As an Albanian studying in Italy, how can I apply for a tourist visa for the UK to visit my friends?

Which Standard Visitor visa should I apply for?


PHP script that can extract text from multiple a title= values of certain website?

How do you parse and process HTML/XML in PHP?


Proving Two Limits Are Equal to Each Other


How can I convert ereg expressions to preg in PHP?


What is wrong with this SQL statement syntax? Msg 170, Incorrect syntax near '('

Query works in SQL Server 2005 but syntax error for SQL Server 2000


How to remove the hash from window.location (URL) with JavaScript without page refresh?


Why under joint least squares direction is it possible for some coefficients to decrease in LARS regression?

Is there a clear set of conditions under which lasso, ridge, or elastic net solution paths are monotone?


Why isn't sizeof for a struct equal to the sum of sizeof of each member?


jQuery: How can I transition to another background color through console?


How to use %d in C++, particularly in DrawText()

How can I use DrawText() to display a variable?


Inequality for positive definite matrices

Prove that $A\ge0, B\ge0$ and $A\ge B$ implies $B^{-1}\ge A^{-1}$


How can I repair grub? (How to get Ubuntu back after installing Windows?)


Meta Stack Exchange "return to main site" goes to Stack Overflow

The site still thinks it's attached to Stack Overflow


Is there a way to use apostrophes in sed commands?


Short story about humans on a hostile planet, genetically engineering their offspring gradually over generations, to be able to survive on it

Story about suicidal breeding of aggressive next generation on generation ship


How to get permissions to execute programs from NTFS hard drive?


How do I run executable scripts in Nautilus?


sort records by two fields in ruby on rails

Ruby on Rails: updated_at - set as 0 on creation


Bounty page is not loading when sorting by offered or earned


why char * and char array behave differently in comparison?


what's the real value of $\sqrt2^{\sqrt2^{\large \sqrt2^{\sqrt2^{\unicode{x22F0}}}}}$?

Are these solutions of $2 = x^{x^{x^{\:\cdot^{\:\cdot^{\:\cdot}}}}}$ correct?


Convert current time to utc time python with only using datetime package

How to convert local time string to UTC?


Schengen tourist visa right after student visa expires (South Korean passport holder)

How to switch from Resident visa to Tourist visa status in the Schengen area?


Strange null string concatenation behaviour

Why is it Valid to Concatenate Null Strings but not to Call "null.ToString()"?


Extra spacing before an equation when line nearly breaks

fleqn document class option, long text lines, and hyperref package


Toggle notification center's DoNotDisturb from terminal

How to enable/disable Do Not Disturb from shell on Mavericks?


Is it possible to freeze task order in htop?


Retriveing data from Firebase database is showing null pointer exception. How?

What is a NullPointerException, and how do I fix it?


example of a Lie algebra L and its non-semisimple representation

Complete reducibility of a representation of a lie algebra


How does wordpress distinguish a plugin's main php file from other php files?

Do plugin files have to follow a specific convention to be "picked up" by WordPress?


Transportation options from EWR to JFK airport


OpenGL - Asteroids clone - shooting bullets from spaceship


CSS Dotted Line in the box is messed up at the corner and looks weird


How can I make my local repository available for git-pull?


How to concatenate text from multiple rows into a single text string in SQL server?


read from stdin works differently in bash and zsh

In bash, read after a pipe is not setting values


dropping number of levels in nominal features

Principled way of collapsing categorical variables with many levels?


Where is the source repo for Debian utilities?

How to know the source repository of a package in debian?


Prove that a bounded operator $A$ on Banach space is invertible (bijective) if $\left\|I - A\right\| < 1 $ holds?

$||T-I|| < 1$ implies that $T$ is invertible.


Find the sum of the following series using

Find expression for : $ S_n =\sum_{i=1}^{n} \frac{i}{i^4+i^2+1} $


Mounting external HD 4 TB failed with error message (ubuntu 16.04.2)

Unable to mount Windows (NTFS) filesystem due to hibernation


Determinant of a rank $1$ update of a scalar matrix, or characteristic polynomial of a rank $1$ matrix


Is saving images to the database a good idea?


Does photon have size measurement because of its particle nature


How do pump spells interact with damage at end of turn?


When the Cosmic Microwave Background radiation cools, where does the energy go?

Redshifting of Light and the expansion of the universe


Surjectivity of natural morphism between multiplicative modulo groups

Why does the natural ring homomorphism induce a surjective group homomorphism of units?


Using a function in Sass is returning the string containing the name of the function rather than the result


How to install Eclipse J2EE IDE from a tarball?


how to use gdal command inside php exec() function


Firebase values may produce Java.land.NullPointerException when comparing

What is a NullPointerException, and how do I fix it?


How can I create a Windows bootable USB stick using Ubuntu?


How to prevent updating of a specific package?


Using variables from a spinner to determine action by a button


Different behavior when passing exception by value vs by reference C++


If there exists $m,n\geq2$ such that $x^{m}y^{n}=yx$, for any $x,y\in M$, then prove that the operation is commutative

Prove that a semigroup satisfying $a^pb^q=ba$ is commutative


How can I use my custom sqlite database with android app?


Jquery doesn't add listner to a newly added field

Event binding on dynamically created elements?


Is there a "larger picture" from which we can see that $G$ is abelian if $G/Z(G)$ is cyclic?

If $G/Z(G)$ is cyclic then $G$ is abelian – what is the point?


Copy constructor/Assignment operator confusion when initializing object

Is there a difference between copy initialization and direct initialization?


LightRoom 5 Export looks different to the Develop screen

Why is Lightroom not rendering what I see in every other JPG viewer?


How do I erase an element from std::vector by index?


Select maximum value of each member from table

Fetch the row which has the Max value for a column


What is a NullPointerException, and how do I fix it?


How to discriminate between null and zero length string in .NET?

Is there a VB.NET equivalent for C#'s '??' operator?


Choosing ubuntu version for 10 year old pc

How do I find out which version and derivative of Ubuntu is right for my hardware in terms of minimal system requirements?


Why couldn't Doctor Strange simply open a portal to Earth?

Why couldn't Doctor Strange use his sling ring in space?


Prevent circular close as exact duplicate loop


What would happen if a black hole swallowed a white hole?

Collision of a black hole & a white hole


How to test private method of a private static class

How do I test a private function or a class that has private methods, fields or inner classes?


What's the difference between an argument and a parameter in Javascript?

What's the difference between an argument and a parameter?


Convert eregi to preg_match - what is Unknown modifier 'F'?

Warning: preg_replace(): Unknown modifier


strange results in adding double numbers


How to put all css files in one file and all javascript files in one file

How to include all css kept in a directory?


Java - Background song to my game (How can I add it)


Prove that the square of a prime of form $4k+1$ is the sum of two squares

Use induction to prove a product of sums of squares is a sum of squares


How should I deal with becoming discouraged as a graduate student?


How might we show that traversing a diagonal in square steps is, in the limit, equivalent to traversing the diagonal directly?


Where should I ask my question about partition types and performance?


If $X=f^{-1}(Y)$, is it true that $f(X)=Y$?


Recover all files from SD card (not just known file extensions)


Run Ubuntu and Windows 10 on same laptop

How do I install Ubuntu alongside a pre-installed Windows with UEFI?


Where is the correct occurence of the world "also" in sentences?

"I have sent it to X too" vs. "I have sent it to X also"


Ubuntu 16.04- VNC/TeamViewer, setting screen resolution in headless mode

Add Fake Display when No Monitor is Plugged In


How to enable/disable components in jsf/icefaces?


"UNION-ALL" Causing Answer Submission to Fail

Unable to post any answer or comment with UNION - ALL


Must the derivative at a point be finite when it exists?

A few questions about infinite derivative.


If $[K:F] = 3$, show a non square in $F$ is a non square in $K$


edges on graph do not align with center of nodes in foreach


How do you clone an Array of Objects in Javascript?


How to summon a baby villager in Minecraft Bedrock Edition?


Can a disagreement button and comment be allowed in audit tests?

Add an "I don't understand" option for review audits


Storing dynamic properties of objects in SQL

Dynamic table columns based on user preferences


Camera not showing anything when rendering


Set image in NotifyIcon control from code behind or in XAML


Why am I getting this screen all of a sudden when I turn my Laptop on?

fsck error on boot: /dev/sda6: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY


I am trying to select in my regex only what is between `<` and `-`

My regex is matching too much. How do I make it stop?


trying to getting rid of /url?q=, not working


Maximum likelihood estimation of parameters

Maximum Likelihood Estimation (MLE) in layman terms


What are "on-shell" and "off-shell" conditions in classical mechanics?


Java regex not respecting the specified quantifier


Can a phrase be the object of a clause and how would its subject change?


Where do I ask a question about development, product management, UX design... when considering a career change towards software development?

Which site deals with career development questions for programmers?


My wooden cutting board bent. Is there a way to fix this?


How do I install the .jar mod called Forge for Minecraft 1.7.10?

How exactly do I install Minecraft Mods and what is Forge?


Is it possible for simple RNN to learn infinite sin wave?

How do I make my neural network better at predicting sine waves?


Fuzzy graphics after upgrading to Ubuntu 20.04


May I please have the ability to flag posts just for my attention?

Is there any way to favorite/bookmark an answer?


Print small TeX code verbatim and render it


RSS Unexpected Token, reading in xml file

What is a NullPointerException, and how do I fix it?


Regex not taking the least possible match

My regex is matching too much. How do I make it stop?


How to share only one application without virtualization?

How can I run a second user session from windows on my local screen (with Raspberry Pi)?


jquery selector doesn't work on added tag

Event binding on dynamically created elements?


WiFi Disconnects After A While In Fresh-Installed Ubuntu 14.04 LTS

Wifi drops and won't reconnect until reboot (14.04 with RTL8723BE)


Why use least squared solution of linear regression when we can use X inverse?


Using a variadic template method of a template class inside a variadic template function

Where and why do I have to put the "template" and "typename" keywords?


What You See is What You Get (WYSIWYG) for PGF/TikZ?


No terminal or xterm and tty loops back to login

What are Unity's keyboard and mouse shortcuts?


Why does Google sometimes ask for a phone number and sometimes not?

How can I get around giving my mobile phone number to Google?


book recommendation on functional analysis


Reference: What is variable scope, which variables are accessible from where and what are "undefined variable" errors?


Assume that $1a_1+2a_2+\cdots+na_n=1$, where the $a_j$ are real numbers...

Assume that $ 1a_1+2a_2+\cdots+na_n=1$, where the $a_j$ are real numbers.


Install IPA using itms-services from disk on iOS device

Installing iOS Apps from a local plist (null) would like to install


Windows 7 desktop: forcing new icons (e.g. after starting a download) to appear last?

windows 7 desktop icons: new icon placement


Why do some Arduino relay modules can handle up to 250 VAC but not above 30 VDC?


Proving that $f(x)$ is less than or equal to $1+\pi/4$


$G$ is characteristically simple $\iff$ there is simple $T$ such that $G \cong T\times T \times \cdots \times T$


ul list not scrolling on key press but it does with mouse wheel


BGE: How to Change Active Camera with Python?

How to switch to another camera in blender game engine


How do programs detect home directory (other than $HOME)

Isn't $HOME supposed to be the location of the user's home directory?


How to output the running path instead of the location path?

How to know the path of the running script in Python?


SQL query error with too many parameters in "in" clause

Limit on the WHERE col IN (...) condition


proving if $a \le b$ then $\sup(A) \le \inf(B)$


Ways to circumvent the same-origin policy


How to break sed commands to nested parts when no regex and variable expansions are applied?

How to split long sed expression into multiple lines?


repeated error: "Target filesystem doesn't have requested /sbin/init"


Purchases on fortnite mobile not transferring to PS4

Do Fortnite V-Bucks Purchases Save on All Platforms?


I am try to under stand this javascript code but tired of it?

What is the scope of variables in JavaScript?


3.5 D&D Mystic Theurge Specialist Wizard banned spells

Can a Specialist Wizard multiclass to cast spells from his prohibited schools?


2001: Confused benefit of monoliths to aliens

What did the black monoliths do in 2001: A Space Odyssey?


A property P of morphisms of $S$-schemes $f : X \rightarrow Y$ is local on $X$, or $Y$, or $S$ or

"This property is local on" : properties of morphisms of $S$-schemes


SELECT records as comma separated string

Simulating group_concat MySQL function in Microsoft SQL Server 2005?


Java equal vs == (String Instance Variable)


Why The constructor ArrayAdapter(new View.OnKeyListener(){}, int, String[]) is undefined


Is it better to have gold cfd contract or real bullion gold bars?

Pros & cons of buying gold directly vs. investing in a gold ETF like GLD, IAU, SGOL?


How do I install the updated version of Google Chrome using Ubuntu Software Center


"du -shm ." and "quota -s" information are not matching for particular user?

Why does du and quota results not match?


android : Loading data from XML to SQLite take very long time


How to prevent the paragraphs to spread out over the page?


Let $F|K$ be a field extension and $a \in F $ such that $[K(a):K]$ is odd integer

Do we have $K(\beta)=K(\beta^2)$ for field extension of odd degree?


Append the same value multiple times to a list

Creating a list in Python with multiple copies of a given object in a single line


What is the difference ( import React from "react"; ) vs ( import React from 'react'; )

When should I use double or single quotes in JavaScript?


Can I get copies of Ubuntu 13.04 on CD's to give our Free Software Club members?

Where can I get an Ubuntu Installation CD/DVD/USB?


What is the difference between using bash and sh to run a script?


Why won't my ps4 controller connect to my ps4?

PS4 Controller not connecting to PS4 and won't reset?


The number of transpositions between two permutations

Worst-case number of transpositions needed to generate a permutation


How to disable Ctrl+Shift+U in Ubuntu 18.04?


Proving an Combination formula $ \binom{n}{k} = \binom{n-1}{k}+\binom{n-1}{k-1}$

Proving Pascal's Rule : ${{n} \choose {r}}={{n-1} \choose {r-1}}+{{n-1} \choose r}$ when $1\leq r\leq n$


Route all traffic from specific source to take WIFI

Under Mac OS X, can I choose to use the Wireless connection for some specific traffic and the Wired connection for the rest?


C++: Cannot synthesize template methods?

Why can templates only be implemented in the header file?


DAO and Service layers (JPA/Hibernate + Spring)

Java EE Architecture - Are DAO's still recommended when using an ORM like JPA 2?


Some of the faces of my model are are dark


Remote monitor directory via FileSystemWatcher

Map a network drive to be used by a service


Write solution(s) of $z$ in the form $a + bi$

How do I get the square root of a complex number?


Is it possible to remove duplicates from search results?


How can "A problem occured while checking for updates" be fixed when Terminal and Software Updater don't work?

How to get the terminal to work again? Terminal stopped working after changing default python version


I want to generate different view or template for webapp into Yii Framework

Yii - Ways to do include another view in this view


Bash shadow a command - function with same name as command

Running an executable in PATH with the same name as an existing function


How do I iterate over the words of a string?


encodeURIComponent using ISO-8859-1 encoding for a javascript string

How to pass Unicode characters as JSP/Servlet request.getParameter?


Does Dispel Magic cast on the caster of Spiritual Weapon end Spiritual Weapon?

Can you use Dispel Magic on the source of a spell (ie, the caster)?


How do I compute the square root of a number without using builtins?


Exceptions, stack unwinding, encapsulated heap memory, exit()


How to fix "Package is in a very bad inconsistent state" error?


Why didn't Ben take Luke to Degobah when he was much younger?

Why didn't Kenobi start training Luke earlier?


How to show that the ring $S/A$ has no zero divisors? (Hungerford, Algebra, Problem 12, Chapter III, Section 2)


AngularJS:  tag not working on url's created by $sce.trustAsResourceUrl(fileURL);


Nagios NRPE unable to read output on remote system only


"the other half were" vs. "the other half was"


Let $f ∈ L_1([0,1])$ be a function such that $\int_E f(x)dx = 0$ for any measurable set $E ⊂ [0,1]$ of Lebesgue measure $0.99.$

If $f$ is Lebesgue integrable on $[0,2]$ and $\int_E fdx=0$ for all measurable set E such that $m(E)=\pi/2$. Prove or disprove that $f=0$ a.e.


What is the 'ctr' variable in a parallel C# loop?


What happens to light as it passes through a medium?

What is the mechanism behind the slowdown of light/photons in a transparent medium?


Lagrangian, metric and geodesics: obtention of equation of motion in GR

Geodesic Equation from variation: Is the squared lagrangian equivalent?


How do the tenses and aspects in English correspond temporally to one another?


Why does changing "class" to "struct" for a hasher work for `unordered_map, int, pair_hasher>`?

What are the differences between struct and class in C++?


How do I go about backing up/saving installed device drivers in Windows?


Additional visa needed to travel to Belarus with Russian visa for EU citizen?

Do I need a visa to visit Belarus if I have a Russian visa?


What is the best regular expression to check if a string is a valid URL?


How it is possible to initialize an array in this form with null values? (Java)

What is the difference between an int and an Integer in Java and C#?


Missing the iPhone "Installed Apps" tab in iTunes on Mac

How do I backup and restore my IPA app backups in iTunes 12.7?


Given $n$, exist $k$ such that $2^k$ contains $n$ as string.


Pgfplots: Two legends for scatter plot with multiple plots and classes

Using a pgfplots-style legend in a plain-old tikzpicture


How to define comment delimiters of a table cell?


how to remove IPV4 address port number using javascript

How do I split a string, breaking at a particular character?


$\lim_{h\to 0}\int \frac{f(x+h)-f(x)}{h}\,\mathrm{d}x = f(b)-f(a)$


side channel attack on RSA implementation


How to turn continuous signal into a short pulse using logic gates?


How can we sum up $\sin$ and $\cos$ series when the angles are in arithmetic progression?


Improper integral of $\sqrt{x^4 + 1} - x^2$

Prove $\int_0^{\infty} \left(\sqrt{1+x^{4}}-x^{2}\right)\ dx=\frac{\Gamma^{2}\left(\frac{1}{4}\right)}{6\sqrt{\pi}}$


poll() failed, context incorrect? - Example: bpy.ops.view3d.background_image_add()


R, given a set of center points how to define the cell area?


Getting NullPointerException while getting data from SQLiteDatabase in android

What is a NullPointerException, and how do I fix it?


Can't delete file with strange characters in name

Is it impossible to delete/move a file named "␀" on mac?


What are these mysterious gaps in the progression of post id?


For any $k \ge 2$ so $k^3 + 27$ can never be a prime.

Show that $\frac{(3^{77}-1)}{2}$ is odd and composite


[For help]javax.servlet.ServletException: Servlet execution threw an exception


LAS dataset to raster with ground points only

Selecting LiDAR return point type in LiDAR dataset with ArcPy?


What is the return type of the following function in C++

Where and why do I have to put the "template" and "typename" keywords?


What prevents this magnetic perpetuum mobile from working?


Steam starts to open for a few seconds, then closes


What's the Simplest Way to Convert a book from XeLaTex to Epub


How to code an UITableView with a Switch like the Alarm App iOS7?

Select UITableView's row when clicking on UISwitch


NullPointerException when declaring RecyclerView


"Your flagging history" is broken when a user has only raised helpful spam flags

Flagging history doesn't show anything when the only flags being cast are spam flags


Custom alignment of text in itemized environment


Performance wise what is the best way to compare 2 DataTables with approximate 1000 records?

Compare two DataTables and select the rows that are not present in second table


Setting value of number on certain decimal points

How to increase significant digits in Mathematica


Passing through Schengen Area with Portuguese permit D for 2 entries

Should my first trip be to the country which issued my Schengen Visa?


windows defender 32bit does not stop working

How can I remove malicious spyware, malware, adware, viruses, trojans or rootkits from my PC?


Is it necessary to declare PHP array before adding values with []?


How to prove that $\lim\limits_{\epsilon\rightarrow 0}\int_{-\infty}^{\infty}f_\epsilon(x)g(x)dx=g(0)$ (Dirac delta function))


What has the greatest chance of being in Marcellus Wallace's briefcase?


Is there a way to find out if I need a transit visa for a layover in the UK?


How did Anakin Skywalker defeat Darth SIdious?

Why did the Emperor remain motionless while Darth Vader threw him off the balcony?


Where did the names of English letters come from, and why are they all monosyllabic (except for "w")?


Limit Question: lim theta---> 0 sin theta / 3 theta + tan theta: When you multiply 1/ cos theta by 1/ theta why doesn't your value change?

Trigonometric limit: Dividing the Numerator and Denominator by $\theta\;?$


What will happen to our previous review stats with the new review system, and how will it affect the badge?


Can't use method return value in write context


Mysqli prepared statements without binding parameters


iPhone: Speech Recognition is in IOS SDK available?


What is the difference between Reduce and Solve?


Receiving Grub message without ever installing Ubuntu?

Uninstall GRUB and use Windows bootloader


Way to read incoming data from a serversocket efficiently

What is a NullPointerException, and how do I fix it?


Why should we use 'Did you come?' instead of 'Did you came?'?


Cutting down on Exchange 2013 .log Files in Mailbox Database folders

Thousands of .log files in Exchange 2007 Server folder


How to make a bash shell script execute in C?

How do I execute a command and get the output of the command within C++ using POSIX?


How far a villager needs to be from the village before he will try to run to it?


Prove or disprove that the language L is regular


What is the history behind capitalization of None, True and False in Python?

Why True/False is capitalized in Python?


Export sql table with data that has commas to a csv file

How to output MySQL query results in CSV format?


Windows 10 on one drive, and Ubuntu on another


Where to download the lastest Windows ISO (legally)?

How can I reinstall Windows 7 if I lost my installation DVD?


Print lines between (and including) two patterns


Creating my own midpoint rule function in Mathematica


Different return for different formulas but same value


The /r/ sound in "drawing" in British English?

When do I pronounce a non-existent “r” between adjacent vowel sounds?


How to cover {get;set;} in Test Class code coverage?

Unable to cover get set in apex test class


changing the names of files within a directory


How to handle if XPath are different for multiple sub-menu options

How to handle dynamic changing ID's In XPath?


Prove using induction that $1!\cdot 1+ 2!\cdot2+ 3!\cdot3+ ... +n!\cdot n = (n+1)!-1$


Influence of spacetime curvature on electromagnetic wave propagation

Coulomb's Law in the presence of a strong gravitational field


Reproducing toc format [2] ( space problem )

Increasing spacing between section number and title in the table of contents


How to make putty to not break my session after some time?


Why are the "common" resistors and capacitors rated the way they are?


How do I do a Date comparison in Javascript?


Closed form of $\sum_{i=1}^{N} \frac{1}{i}$?

Is there any formula for the series $1 + \frac12 + \frac13 + \cdots + \frac 1 n = ?$


How can I rename items using /replaceitem in MCPE?

Is it possible to use NBT tags in commands in Minecraft: Bedrock Edition?


Using for loop in tikz to draw repeated shapes


Question mark or bold citation key instead of citation number


Prouve that $\mathcal{F}\{\frac{dx(t)}{dt}\} = 2i\pi f \mathcal{F}\{x(t)\}$


how to compile ruby and python in ubuntu 14.10


How to change geometry with beamer class?

Modifying the margins of all slides in Beamer


Help to decide the partition to install ubuntu

I have formatted a partition for Ubuntu. How do I install it on that partition?


ADB pull error: remote object '/dev/block/mmcblk0p24' not a file or directory


On the Subtlety of Verbal and Material use During Spellcasting


Prove that $\prod_{n=2}^∞ \left( 1 - \frac{1}{n^4} \right) = \frac{e^π - e^{-π}}{8π}$


why can't i change the setting of primative mesh objects in object mode?


What is wrong with this getElementsByClassName call in Javascript?

What do querySelectorAll and getElementsBy* methods return?


Proving $\mathbb{Z}[i]^{\times}$ is finite


How to pull a user's friends from Facebook (with v 2.0 Facebook Auth)

retrieve full list of friends using facebook API


How to Properly Format a Regex in JavaScript


Proving that integral of big oh is not following normal polynomial integral.


Number of $k$-dimensional subspaces in $V$

How to count number of bases and subspaces of a given dimension in a vector space over a finite field?


Example "server.php" from ReactJS tutorial has syntax error


Influence of delta potential (particle in a box)

Delta function potential in an infinite square well


"Will" vs "going to" vs present continuous


Heisenbug: Thread doesn't run without a sysout

Loop doesn't see value changed by other thread without a print statement


Show that if $s_n$ and $t_n$ are two sequences in $\mathbb{R}$, then $\lim \sup (s_n + t_n) \leq \lim \sup (s_n) + \lim \sup (t_n)$

Prove $\limsup\limits_{n \to \infty} (a_n+b_n) \le \limsup\limits_{n \to \infty} a_n + \limsup\limits_{n \to \infty} b_n$


UK Visa Refusal V4.2 Freelancer / Married / Permanent EU Resident

UK visa refusal on V 4.2 a + c (and sometimes 'e')


How can I download files on a webpage, when the download link is in a new tab?


Windows 7 doesn't generate wake event in system log

Trigger Task Scheduler in Windows 7 when computer wakes up from sleep/hibernate


Why aren't search engines indexing my content?


Intuitively, why does $\int_{-\infty}^{\infty}\sin(x)dx$ diverge?

Is $\int_{-\infty}^{\infty} \sin x \, \mathrm{dx}$ divergent or convergent?


Avatar image upload fails with frame-related error message

"For security reasons, framing is not allowed; click OK to remove the frames." on Imgur upload


How to get an intuition to draw the eigenvectors for PCA?

Making sense of principal component analysis, eigenvectors & eigenvalues


How to join two tables and convert joined table to a vector layer containing points in QGIS?

Joining multiple records to single feature using QGIS


How do I model a scene by using objects from other blend files?

How can I reuse existing materials, objects, etc from an existing .blend?


Player offering other characters advice during combat

How do I deal with a powergamer in a game full of beginners in a school club?


Did the universe really start with a single point?


Integration of $\int\sqrt{\tan\theta} \cdot d\theta$

Evaluating the indefinite integral $ \int \sqrt{\tan x} ~ \mathrm{d}{x}. $


In a $\triangle ABC,$ If $\cot A+\cot B+\cot C =\sqrt{3},$ Then prove that $\triangle$ is equilateral.

How to show that the triangle is equilateral triangle?


What is a Django "app" supposed to mean?


I need to accelerate the performance of my WPF Program


What are the use cases for having a function return by const value for non-builtin type?


Controlling VirtualBox from the Command Line

Can't use VM VirtualBox "VT-x is disabled in the BIOS for all CPU modes"


How to make the slider of a Tkinter Scale widget start in certain place?

How can I set the default value of my tkinter Scale widget slider to 100?


How should I install a partition wall perpendicular to a finished exterior wall?

Do I need to remove existing drywall before framing an interior wall?


Why does this conditional statement not work and does an if-statement that seems to do the same thing work?

Conditional operator assignment with Nullable types?


Should “two weeks vacation” be written “two weeks’ vacation” with a possessive apostrophe?


Why does Ubuntu 20.04 not want to install my DEB package?

How do I install a .deb file via the command line?


Why ArrayList is faster than HashSet in java?

How do I write a correct micro-benchmark in Java?


How can I see how many edits left for Archaeologist badge?

How can I see my progress for different badges?


Remove the useless 15-character requirement for comments

Can we get rid of the threshold of 15 chars for comments?


Should proper nouns used as verbs be capitalized?

Should capitals be used when verbing trademarks?


propositional calculus problem, is this right proof?

propositional calculus problem, how to prove this right or wrong?


Learning General Relativity from a mathematical and physical point of view


Is grep 2.25 the most recent version available for ubuntu 16.04?

Why don't the Ubuntu repositories have the latest versions of software?


Solve for Theta: $a = b\tan(\theta) - \frac{c}{\cos(\theta)}$

Solve for $\theta$: $a = b\tan\theta - \frac{c}{\cos\theta}$


Why does latex stretch small sections across the whole page vertically?


When can one break the rule of using "does" instead of "do"?

The grammaticality of "that don't impress me much"


Count triangularizations of convex polygons such that each triangle created by triangularizations have atleast one side as polygon side.


Defining projection, reprojecting, and wrong area values

Layers with same coordinate system should align/overlap in ArcMap but do not?


Can I combine :nth-child() or :nth-of-type() with an arbitrary selector?


Does anyone know if Heroku is still with Facebook?


Design of the frontpage is broken at 110% zoom


What is the escape velocity in the Kerr metric?

Escape velocity from a rotating black hole


Does Armor of Agathys work for melee spell attacks like Spiritual Weapon?

Is a melee spell attack also a melee attack?


Is there such a thing as a reverse dictionary?

What are your favorite English language tools?


Should 'Hi', 'thanks', taglines, and salutations be removed from posts?


We're working on a new stat to help convey the reach of your posts here


Proving that the ring $R$ of $2\times 2$ matrices over $\Bbb{Q}$ contains only two ideals: $(0)$ and $R$.

Why is the ring of matrices over a field simple?


What's the difference between the nvidia-current, and nvidia-current-updates packages?


Attempt to invoke virtual method 'android.view.View android.support.v4.widget.NestedScrollView.findViewById(int)' on a null object reference

What is a NullPointerException, and how do I fix it?


Probability that Amy gets more heads than Bob?

A probability theory question about independent coin tosses by two players


When I create a screenshot, the menus do not appear

ScreenShot/PrintScreen doesn't work with menus dropped down!


Why are Kylo Ren and Rey evenly matched in Force pulling in TLJ?

How could Kylo Ren move Luke's lightsaber in The Last Jedi when he couldn't in The Force Awakens?


Change module settings stored in an array with drush


Does Cauchy second limit theorem work both ways?

Are the limits $\lim\limits_{n\to \infty }\left|\frac{a_{n+1}}{a_n}\right|\,$ and $\lim\limits_{n\to \infty }\sqrt[n]{|a_n|}\,$ equal?


How to write to a memory buffer with a FILE*?


How do I split a string, breaking at a particular character?


Proof of No Unique Factorisation in $\mathbb Z[\sqrt{d}]$ for $d \leq-3$

Why is $\mathbb{Z}[\sqrt{-n}], n\ge 3$ not a UFD?


Using CSS to create custom borders with just the corners showing


I want to install a visual basic 6 in Ubuntu 14 step by step


View not moving up when keyboard appears

How can I make a UITextField move up when the keyboard is present - on starting to edit?


Is it okay to use my US visa after a name change?


How can we determine if an equation represents a travelling wave?

Why should a solution to the wave equation be finite?


Ubuntu installation which version to load on old laptop

Is the 64-Bit version of Ubuntu only compatible with AMD CPUs?


Expanding ubuntu partition with unallocated space

GParted merge unallocated space to ext4 partition


How to select all edges/vertex between 2

Is there a way to choose a beginning and ending edge and auto select all the edges in between?


Accessing class variables from a list comprehension in the class definition


How did Jane start suffocating after smoking heroin?


Previously working version of Ubuntu now boots to black screen

My computer boots to a black screen, what options do I have to fix it?


Is there any place to get browser and version usage by industry?


How to keep footer at the bottom until content filled with body height?

Make a div fill the height of the remaining screen space


Electrical engineering version of Stack Overflow

Where do I suggest new Stack Exchange sites?


Difference between the new Salesforce Platform Developer 1 certificate and the old Developer certification DEV-401


The number $2^{29}$ has $9$ distinct digits. Find the missing digit without the use of a calculator.

The number $2^{29}$ has exactly $9$ distinct digits. Which digit is missing?


"Daily vote limit reached; please come back in *x* hours" shows when you use your final vote


SD Card showing weird file names and files are lost


How can I transpose x and y axis on a Plot?


Uniqueness of Lagrangian and Hamiltonian

Do the same equations of motion imply the same Lagrangians?


Question mark or bold citation key instead of citation number


How to allow page-breaks in columns/list


file block size - difference between stat and ls


Taking lens off without turning camera off

Is it dangerous to do a lens change with power on?


click function after dynamically changing data using .html()

Add click function to dynamically created html tags


It possible to convert java source file to a .exe file?

How can I convert my Java program to an .exe file?


Python: Change Text Color Based on Var Value

How to print colored text to the terminal?


Can I change my username on all sites keeping the profile information intact?


What's the benefit of paying more fees on wealthfront?


When shall one write a mathematical expression as a separate line in a paper/Ph.D. thesis?

When to use inline versus displayed equations in a publication?


Proving that $1_{\limsup A_n}=\limsup1_{A_n}$.


Can I bring a GPU in my carry on from the USA to Chile?

Am I allowed to take a graphics card in my carry-on luggage?


Is it possible to copy a set of files, but automatically skip if file already exists?

How to copy ONLY those files that are not in the destination?


What are the units in $\mathbb{Z}[\root 3 \of 2]$?


Setting the order of attribute when writing XML Element

Order of XML attributes after DOM processing


Fan noise and overheating problem in Dell Inspiron N5110


5.4 dereferencing to valid 5.3 array call

PHP syntax for dereferencing function result


how to work with php equalto operator(relational operator)

How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators differ?


Why do we use a gray encoded signal by 2 stage flip-flop in asynchronous FIFO to avoid race-condition issue?

gray code clock domain crossing FIFO fast to slow


How to fix "Headers already sent" error in PHP


How to solve the following problem - A ∩ B ⊂ A ⊂ A ∪ B?

Show that $A\cap B\subseteq A$ and $A\subseteq A\cup B$


What if I accidentally run command "chmod -R" on system directories (/, /etc, ...)


Computationally indistinguishably vs Perfect Indistinguishably

Difference between computational and statistical indistinguishabilities


Trying to install bcmwl-kernel-source but it's asking for CD-ROM

How can I avoid "please insert CD/DVD" error when updating Ubuntu?


MySQL 5.5.16 allows anonymous connections


A local user can start x0vncserver. An ssh user not

How to connect to remote X-Server (logged in via ssh)


Returning multiple objects in an R function

How to assign from a function which returns more than one value?


Change a variable name in queried javascript object


SATA Drive is not detected when hotswapping


What are the basic rules to put a logo in your photos without spoiling them?

How do I position a watermark so that it looks good and does not spoil my image?


Why `sum([0.1] * 12) == 1.2` is True meanwhile `math.fsum([0.1] * 12) == 1.2` is False?


Varying behavior for possible loss of precision


Homology of a compact manifold is finitely generated


Remove a list of special characters from string in C#

Replace multiple characters in a C# string


Is there a flexible calculator available that can walk you through complex SQL licensing?

Can you help me with my software licensing issue?


Accessing polygon geometries from a geodataframe - keep getting a key error

Matching points to polygons and handling points NOT in polygons


C Shell Array Declaration Syntax, () vs. {}

C Shell Array Declaration Syntax, () vs {}


what is the purpose of protected variable and method in java

What is the difference between public, protected, package-private and private in Java?


What is the fastest or most elegant way to compute a set difference using Javascript arrays?


How to politely take back a request to be on an exam committee?

How to tell a faculty member that I don't need him on my thesis committee anymore?


How to take mysql database backup by using java?


iPhone 6s ios 12.3 general settings restrictions

How to remove restrictions in latest IOS?


Computer won't boot after clean install of ubuntu 14.04

My computer boots to a black screen, what options do I have to fix it?


How do I find the code for the $c$ values where $x^2 + x + c + 1$ has a double root?

Define the polynomial ring $\Bbb Q[c][x]$.Find the $c$ values where $x^2 + x + c + 1$ has a double root.


Email Regex validation in JavaScript allowing characters (#$%&* etc) in middle

How to validate an email address in JavaScript


Dock moves to left side resulting in double dock when clicking "Show Applications"

Why do I have two docks in Ubuntu desktop (with GNOME 3) after installing Dash to Dock?


Prove that if $p$ and $p^2+2$ are prime then $p^3+2$ is prime too


Redirect, Change URLs or Redirect HTTP to HTTPS in Apache - Everything You Ever Wanted to Know About mod_rewrite Rules but Were Afraid to Ask


Updating blob in MySQL via mysqli in PHP without user uploading a file. Is this possible?


How to check java version on multiple servers?

Linux equivalent to PowerShell's "one-to-many" remoting


"Lyrics to a song" vs. "lyrics of a song"

"The lyrics to the song" vs. "the lyrics of the song"


What if panning and zooming isn't working

Why does the zoom sometimes stop at a point?


Slow pip installation issue possibly related to DNS configuration

Reinstallation of Ubuntu WSL 18.04 and Python3-pip installation issues


Package conflict between chemmacros and Russian


What is JavaScript's highest integer value that a number can go to without losing precision?


How do I shade in the region between two plots?


Can we express any positive real number with arbitrary precision using a ratio of two prime numbers?

Are fractions with prime numerator and denominator dense?


Derivative and vector for start of curve are orthogonal to fixed vector, hence the curve is


How to put more than 1000 values into an Oracle IN clause


How can I remove snaps without losing GUI?


Weird behavior with objects & console.log

Is Chrome's JavaScript console lazy about evaluating arrays?


No more disk space: How can I find what is taking up the space?


How do I include a gnuplot graph in a beamer frame?

Pgfplots and beamer: how to fill the area under a curve with oblique lines (hatching) as a pattern?


Performing operations on LHS of assignment

How to create symbols from strings and set values for them?


PHP generated email being flagged by hotmail

How do you make sure email you send programmatically is not automatically marked as spam?


java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object (reference

What is a NullPointerException, and how do I fix it?


Cannot load old saves in complete edition


Where are the nautilus arrows and the status bar?


Alternative to form with long list of double checkboxes?

Alternative to a columns of checkboxes in a table


What is this type of flexible contact strip called?


Text is english, citation style is in another language


Counting number of lines in a file using grep and wc

Count all occurrences of a string in lots of files with grep


The solution to the differential equation, equation 1.7.28 in Sakurai (2nd Edition)

Normalization of the overlap $\langle x'|p'\rangle$


Can a star visually look like a black hole?

Black hole gravity vs parent star gravity


Stop page from resending forms on refresh

How to prevent form resubmission when page is refreshed (F5 / CTRL+R)


Order of elements of the Prüfer groups $\mathbb{Z}(p^{\infty})$

Characterising subgroups of Prüfer $p$-groups.


Is there a way to find out if I need a transit visa for Canada?


What's the preferred method of writing AJAX-enabled plugins?


How to calculate a Time Zone from my server

How can I have `date` output the time from a different timezone?


How to investigate high kernel task memory usage?


Failed paritiong resizing partition in Mojave via Disk Utility (Planning to add it to Bootcamp)

How to convert a drive from the GPT format to the hybrid GPT/MBR format when using High Sierra (macOS 10.13.2)


Solving for a variable in a modular arithmetic equation

How to solve $ 13x \equiv 1 ~ (\text{mod} ~ 17) $?


Blender Python Property change event - Execute function?


Stop mouse movements from waking monitor


Weird Reputation Change (How do I report)


Where is this place "several houses on the rocky coast and rocky island with natural arch"?

Is there a website listing the location of all the Windows 10 lock screens?


using .NET Regex.Replace() to replace expression more than once

My regex is matching too much. How do I make it stop?


Convert \thebibliography into BIB file, semi-automatically

Convert from a textplain reference to bibtex


NTFS Long Path not working for Windows 10, Server 2019

Windows 10 ver 1607: File Explorer long paths not working?


How can I copy all the data from certain colored cells in a Google Spreadsheet to a single cell?

Sum data based on cell color in Google Spreadsheets


C# -- TcpListener.Start() causing SocketException with message "Only one usage of each socket address"


what is the advantage of inner join tables


Math.cos(Math.radians(90)) doesn't give 0


How to remove parallel stripes from DEM in QGIS or GRASS?

Topographic Position Index unexpected result in QGIS


Which is correct, [Does fluorine has] or [Does fluorine have]?


Show there is no non-abelian group of order 9

Elementary approach to proving that a group of order 9 is Abelian


Is it ethical to refuse a postdoc offer after lab visit

Can you reject a postdoc offer after the PI has paid a large sum for flights/accommodation for your visit?


What's the etiquette when a comment leads me to an answer?

How should I handle questions which are answered in the comments?


How do I deploy PIR sensors to track people's entrance and exits of a room?

What sensor to choose to track human presence indoors?


Born in the USA, have an expired USA passport and valid British passport

I have an expired US passport, can i enter US on my foreign passport with ESTA?


jQuery select/deselect all limit to 5 from N checkboxes


How to define natural numbers in terms of real numbers?


I have lost my admin rights and locked up the admin account and signed in as a local account

What can I do if I forgot my Windows password?


Interpreting the coefficients when a ln10 transformed DV is predicted by a mixture of ln10 transformed, dummy (0 & 1 coded), and continuous IVs

Interpretation of log transformed predictor and/or response


How to get a Windows 8.1 iso for clean install with a Single Language key?

Windows 8.1 fresh install with Windows 8 licence


How to see $A=\{ (x,y) \in \mathbb{R}^2 : x \in \mathbb{N}, y \in \mathbb{R} \}$ has empty interior?

Interior of cartesian product is cartesian product of interiors


How to line up the "&" to make tables readable in code


Pendrive malware converting exe files into shortcut and displaying error on opening it

How can I remove malicious spyware, malware, adware, viruses, trojans or rootkits from my PC?


How do I split a string so I can access item x?


How do I install a .tar.gz (or .tar.bz2) file?


Is it possible for information to be transmitted faster than light by using a rigid pole?


Find the expected number of $0$'s and $1$'s before the sequence $01$

Expected Value of Flips Until HT Consecutively


How to find out is a current user in a group


Change tooltip under date / share comment link

Improve the usability/intuitiveness of direct comment links


Skip \setsansfont if the font is not available

Check for missing fonts/characters in XeLaTeX?


jQuery - Change boolean value after 10 seconds

JQuery wait x seconds after document ready


Seeking an appropriate antonym to the word Miracle


How to attach a file using mail command on Linux?

How do I send a file as an email attachment using Linux command line?


Java. What is the valid way try to close all connections?


What cameras can be used for custom street view? I mean lots of overlapping spherical panoramas which cover long distances


How to take date of birth from user and tell its age

How do I calculate someone's age based on a DateTime type birthday?


Why am I getting null reference error for spinner here?

What is a NullPointerException, and how do I fix it?


Why we use ./ instead of just typing its name when running the script?

Why do I need to type `./` before executing a program in the current directory?


Proving that: $ | a + b | + |a-b| \ge|a| + |b|$

Use the triangle inequality to show that $|a|+|b| \leq |a+b|+|a-b|$


How do you use the boolean object in Javascript?


Can tag gold-badge holders take off their golden hat when casting close votes?


extended stars-and-bars problem(where the upper limit of the variable is bounded)


Prevent windows from going into sleep when my program is running?


How do I convert blender render materials to cycles materials in 2.78c?

How do I convert materials from Blender Internal to Cycles?


How can I show this implication for $\frac x{xy+x+1} + \frac y{yz+y+1} +\frac z{zx+z+1} = 1$?


What is the 10.7.2.15 entry in the history log of my SE Open ID account?

Why would StackExchange logs show me logging in *from* a stack exchange server?


Can't Boot From DVD or USB Stick after Boot-Repair

My computer boots to a black screen, what options do I have to fix it?


Using Eisenstein criterion show that $x^3+x^2-2x-1$ is irreducible?


I am a java beginner. Why the main in java starts with Static keyword


Difference in meanings for English past tense

How do the tenses and aspects in English correspond temporally to one another?


How to define a differential operator in Mathematica?


Handwriting font that at random picks characters?


\usepackage{syntax} causes an undefined control sequence error?

Bad interaction between mdwtools' syntax package and graphicx


Is it possible to COMPLETELY delete a Book from my purchased books?


why we need to use "this" notation to access LWC properties

LWC: Difference between "window" and "this"


Looking for closed-forms of $\int_0^{\pi/4}\ln^2(\sin x)\,dx$ and $\int_0^{\pi/4}\ln^2(\cos x)\,dx$


Connections on Ubuntu 16.04 are not working properly. WIFI is slow and rarely works. Ethernet does not connect at all


Why can't I call a local variable that has been assigned a global variable? - Python

UnboundLocalError on local variable when reassigned after first use


About dishonest annoying user who down-voted all my post purposely

What is serial voting and how does it affect me?


Remove all files/directories except for one file


Why does [$value -lt 10] in shell result in command not found?

"Command not found" when attempting integer equality in bash


DIV appears when clicked, I want it to disappear when clicked anywhere on the screen using javascript

How do I detect a click outside an element?


How can I vertically align elements in a div?


What kind of SSD is compatible with MacBook Unibody white mid 2010?

What kind of SSD is compatible with the 2010 Unibody MacBook?


Is it better to inform of all errors that don't allow to continue at once or do it one per one?

Displaying errors to a user - One at a time or all at once?


Syntax highlighting thinks entire code block is string

Incorrect C# syntax highlighting with @"\"


How can I remove unwanted CSS found in the parent theme?

How can I override or disable a parent theme's CSS file?


Citation style error - Mendeley and LaTex

Set limit to one author when using "et al." in biblatex


Android Image Button, icon does not fit the button area


Can this $x^2+y^2=\frac{dy}{dx}$ be solved by integrating factor method?

Riccati differential equation $y'=x^2+y^2$


If the derivative of a function is square of it then it is constant


Is there a way to evaluate the derivative of $x$! without using Gamma function?


Construction an a command line bash script with spaces in path names

Why does my shell script choke on whitespace or other special characters?


Which manga chapter correspond to the end of episode 13 of season 2 of the anime?

Which manga chapter correspond to the end of episode 12 of season 2 of the anime?


Show that if $a\in R$ is not a zero divisor, then $a$ is unit.

How to directly prove every element in a ring with exactly three ideals is either a unit or a zero divisor?


How to get two variables from the previous function in python?

What's the best way to return multiple values from a function?


Prove that $n! \geq n^3$, for all $n \geq 6$


Is it "I won't repeat it again" or just "I won't repeat it"?

"Please do not repeat the mistake" and "Please do not repeat the mistake again"


Hide files and directories starting with '.' in Nautilus


Is graphing exponential functions bugged out on Latex?

Plotting a 3d surface in tikz, with a limit to the infinity


How do I resize app icons in applications overview on Ubuntu 18.04?


How to check if user is Sysop using Php in Mediawiki?


How does freezing an app work technically?


What size innertube for 35mm tires? (or: get innertubes on the big side or small side?)


Does AWS Load balancer prevent DDos effectively?


Prove on the circle $z=Re^{i\theta},|e^{iz}|=e^{-R\sin{\theta}}$

Complex analysis : If $z =re^{i\theta}$, then prove that $|e^{iz}| =e^{-r\sin\theta}$


Disabled SIP, but still can't make changes?

Catalina not allowing to change read/write permissions despite having SIP disabled


wireless driver is not working correctly


Bash shell is "clearing" a variable after while loop, how to get all files in a folder inside a variable?

A variable modified inside a while loop is not remembered


how to add an directory to "Places" list

Create a link to a folder on the left panel of Nautilus file manager?


Why does part of my model disappear when I zoom in on it in the 3D Viewport?


Very interesting method for multiplication of natural numbers


Not sure why this isn't working JavaScript function

Why does jQuery or a DOM method such as getElementById not find the element?


Using Iris Colorpicker on TinyMCE shortcodes page

How do I implement the WordPress Iris picker into my plugin on the front-end?


Error : could not start the command : pdflatex -synctex=1 -interaction=nonstopmode "main".tex

Texmaker (Windows version) - first use - Error: Log file not found!


"Lucky try" & "Recommended" shortcuts being created automatically on the homecreen

"Lucky try" & "Recommended" shortcuts always appear on homescreen, how to remove it?


How do we know Dark Matter isn't simply Neutrinos?


How can I find unanswered questions with zero answers in some tag?


Downgrading 2020 13" MacBook Pro to run macOS Mojave

Can I downgrade to macOS Mojave if I buy the new 2019 MacBook Pro?


Do I need to define a constructor when using @Autowired?

Where is the @Autowired annotation supposed to go - on the property or the method?


Fill the UIButton with a color when touched up inside

iOS - Setting UIButton background color only colors the corners


Deriving the square of the angular momentum operator in spherical coordinates

Square of angular momentum operator in spherical coordinates


External display, keyboard & mouse connected to MacBookPro. Good or bad?

Is there a problem with closing the lid of a MacBook Pro when using an external monitor?


Wasted screen space due to multiple horizontal bars at the top when an application is open in GNOME desktop


Intel Corporation Device [8086:0d4f] is not supported on Ubuntu 18.04.3


How can I scp a file across two servers in one line?

Scp over a proxy with one command from local machine?


How long does ketchup and mayonnaise last at room temperature?

How long can I store a food in the pantry, refrigerator, or freezer?


Manipulate runs fine normally, but gives errors as a CDF


When is a gerund supposed to be preceded by a possessive adjective/determiner?


Tar is not Finishing When Running as Cronjob

Why is my crontab not working, and how can I troubleshoot it?


Closed Loops inside a Circuit and Kirchhoff's Laws

Determining current in a branch having no resistor


Thermoelectric couple heating on both sides


Why Does apt-get update Make HTTP Requests


Why don't people vote up questions that they answer?

Why don't people upvote questions they answer?


Find the function $f(k)$, $k > 1$ that is the largest integer and is a divisor of $n^k - n$ for all integers $n$.

Prove that $2730$ divides $n^{13} - n$ for all integers $n$.


Can I setup an MX record for a particular user email address?


What to do when a recommender for an already-submitted PhD admissions application suddenly goes AWOL?

What can I do one day before admissions deadline, if I believe my recommendation letter writer will not submit in time?


Pinhole camera: How "How to See Without Your Glasses" works?


How to integrate the product of two or more polynomials raised to some powers, not necessarily integral