How can I get better results when doing camera motion tracking?


What does "|=" mean? (pipe equal operator)


How to check if a string array contains one string in JavaScript?

How do I check if an array includes a value in JavaScript?


How to round off longitude and latitude values

How to round a number to n decimal places in Java


Cardinality of the union of infinite and countable sets


Restricted least squares: condition is that the parameter vector is greater or equal zero

Linear Regression with individual constraints in R


Evidence that types are not equal in Scala


How to remove complicated shapes in ArcGIS - generalization

How to identify polygons with "flag" sliver errors


Book about a world where things improve when being used

A gateway to a new world/future where things can be improved with use


Prove that for a group with even order $2k$, $k$ odd, there is a subgroup $K$ with order $k$

Let $G$ be a group of order $2m$ where $m$ is odd. Prove that $G$ contains a normal subgroup of order $m$


Is Java "pass-by-reference" or "pass-by-value"?


Disable malfunctioning touchscreen at startup

How do I start applications automatically on login?


What are the pros and cons of an encrypted Ubuntu installation?

What are the advantages/disadvantages of the new encryption feature in ubuntu 13.10


How easy is it for an English only speaker to navigate Iceland

Can we get by as English speakers visiting Iceland?


Call to a member function bind_param() on a non-object (unable to solve despite research)

mysqli_fetch_assoc() expects parameter / Call to a member function bind_param() errors. How to get the actual mysql error and fix it?


Python: determine if all items of a list are the same item

Check if all elements in a list are identical


Provide an ellipsis after a long name instead of truncating it

Long names cut off in questions and answers


How to burn an Ubuntu ISO image on a DVD on Ubuntu?


Prove an identity for the continuous integral solution of the conservation law


How to display the pagination in my post list?


How to change into directory owned by root if I have sudo?

How to enter a directory with the 'cd' command if it has 700 permission and is not owned by me?


Use 3 different USB HDDs always on same drive letter

Is there any way to ensure that a specific USB key always gets the same drive letter?


Attempt to invoke virtual method 'void ListView.setAdapter(ListAdapter)' on a null object reference

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


How to Change and Display Marker Color and Marker Icon in GeoJSON Leaflet?

Call marker color in Geojson to apply to leaflet.js in php


Why is it that when a determinant = 0 then the homogeneous equations represented by the matrix has a non trivial solution?

Why square matrix with zero determinant have non trivial solution


I can't install anything with apt-get and can't add repositories either

Apt "could not find a distribution template" error


"I had better go now." or "I have better go now."


Lower bound placement in summation sigma sign

Show inline math as if it were display math (and vice versa)


What is this time format? "2019-03-31T08:29:00"

How do I parse an ISO 8601-formatted date?


Can I recharge a Canaith Mandolin in Avernus?

Do magic items replenish at dawn even if, in your current place, there is no such thing as dawn?


Why do I get Exception in thread "main" java.lang.UnsupportedClassVersionError?

Cannot execute Java program: UnsupportedClassVersionError


Java class generics NullPointerException in inherited class


BibTeX loses capitals when creating .bbl file


VGA Controller is Intel's but graphic card is AMD/ATI, and 3d acceleration is not supported

How do I get AMD/Intel Hybrid Graphics drivers to work?


Checking if an integer is a member of an integer list


How to mount ext partitions on Windows 8

How can I get access to EXT2, EX3 and EXT4 partitions on Windows 7?


how does compiler know that the class being used is a generic one although it has been compiled and its type erased to pre-generic code

Where are generic types stored in java class files?


WOL over Internet success for a while but fail after a period of time


Get a core dump of/debugging a process killed by oom-killer


How do I "Enable Wi-Fi" on my toolbar if the option disappeared?

Ubuntu Wi-fi driver not working on my Acer Aspire V15 Nitro?? (Qualcomm Atheros QC6174a


Centering images and text in a table without specified dimensions

How to vertically center text with an image in the same row of a table


What is the difference between Node* p and Node *p?

Placement of the asterisk in pointer declarations


What can I do if I forgot my Windows password?


Vector addition in speeds close to that of light

If I am travelling on a car at around 60 km/h, and I shine a light, does that mean that the light is travelling faster than the speed of light?


Notation for two variables with same dimensions

Square bracket notation for dimensions and units: usage and conventions


Looking for advice for choosing a DSLR for landscape/night photography

How to know you've outgrown your equipment?


NullPointerException while using getApplicationContext()

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


For f continuous on $[0,1]$, show that there exist points $\alpha_k$ such that $\sum \limits_{k=1}^n \frac{1}{f'(\alpha_k)} = n $


How to write a script to open current path from nautilus in guake

How To Program A Bash Script That Presses A Certain Combination Of Keys?


no. of elements in $\mathbb Z[i]/\langle 3+i\rangle$.

Number of elements in the ring $\mathbb Z [i]/\langle 2+2i\rangle$


When does the Team GO Rocket hot air balloon appear, and what grunts can I encounter?


Storing output of shell script to variable


What is syntax highlighting and how does it work?


What makes DNA sequences most different/recognizable from a biological perspective?

How do DNA-binding proteins recognize the correct DNA base pairs?


How to use pygmentize automatically with less

Syntax highlighting with less, trouble with lexer


call of overloaded function is ambiguous (two function in different scope)

Why does C++ parameter scope affect function lookup within a namespace?


Can Greasemonkey cause the displayed title to change

How to dynamically change a web page's title?


Is that proved that breaking ECDSA as hard as solving ECDLP?

Are DSA and ECDSA provably secure assuming DL security?


How to fix 'android.os.NetworkOnMainThreadException'?


Windows 7 remote user and local user at once

Use remote computer without disturbing local user


Is it possible to cut the unit square in triangles of the same area such that one of the vertices has irrational coordinates?

Is there an equidissection of a unit square involving irrational coordinates?


Biholomorphism between 2 non simply connected domains

Is my proof correct? (Conformal equivalence of two circular annuli)


How to record sound in buffer using ALSA


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


Can't change desktop resolution - "Size 1920x1080 not found in available modes"


OBS on Ubuntu 17.10 (Artful) - Black screen, only cursor in screen capture mode

Why are some of my screen-recording/capturing/sharing applications (or app features) not working in Ubuntu 17.10 (and later releases)?


In a folder with many files how to do rm on lots of them


Find the largest $m$ such that $n^{12}\equiv 1\mod m$ for all $n$ relatively prime to $m$? (using only Euler's totient theorem)

What is the largest number $n$ with $\lambda(n)=k$ for a given $k$?


How do i use composition correctly in Java?


Why are cash advance limits lower than my credit limit?

Credit cards: How is a cash advance different from a purchase? Why are the fees so high?


Show $f_n(x_n) \to f(x)$ if $f_n \to f$ uniformly and $x_n \to x$.

$f_n → f$ uniformly on $S$ and each $f_n$ is cont on $S$. Let $(x_n)$ be a sequence of points in $S$ converging to $x \in S$. Then $f_n(x_n) → f(x)$.


How to get Url Hash (#) from server side


Create an item in sharepoint calender when infopath form is submitted in sharepoint 2010 through workflow


Driving across America as a UK driver. What specific rules do I need to know?

What regulations should a European driver know when driving in the US?


Indicate comment was flagged in flag history


Check from which directory the program was executed

Where can I find the location of folders for installed programs?


How much did Lucius Malfoy know about the workings of the diary?

Why did Lucius give Tom Riddle's diary to Ginny?


Strings are equal, but if-statement doesn't trigger


Show that $e^n>\frac{(n+1)^n}{n!}$ without using induction.


What parameters for lightweight HTML5 video with avconv?

What bunch of ffmpeg scripts do I need to get HTML5-compatible "Video for everybody"?


Why we also consider the opposite signed value of test statistic in two tailed test to calculate P value?


Using tikzcd in newcommand (for inline arrows)


Prove that in an disordered set of 50 numbers, you can always remove 42 numbers in a way that leaves an ordered set of 8 numbers.

What are some important applications of the Erdős-Szekeres Theorem?


Can the speed of light in vacuum depend on the acceleration of the frame of reference?


Why does printing a char pointer and an int pointer have a different result?

Why does cout print char arrays differently from other arrays?


How to install kingsoft office in ubuntu 14.04 64 bit?


Why is plural -s used in "collecting stamps", but not in "stamp collecting"?


If $G$ is a group and $a,\,b\in G$ s.t. $a$ has order $5$ and $a^3b=ba^3$, prove $ab=ba$

order $a$ = 5, $a^3b = ba^3$. show that that $ab = ba$.


Quantity conserved for the 3D spherically symmetric harmonic potential $V(r)=\alpha r^2$

Is there an analog to the Runge-Lenz vector for a 3D spherically symmetric harmonic potential?


What do they do with all the plates and cups in Star Trek?


ROC-AUC is higher than accuracy score - what does this mean?

Evaluating models by Loglogss, AUC, and Accuracy


Is it possible to have different applications set to different locales?

Can I Start particular program with different language settings in Windows


Drop in traffic due to duplicate content?

What is duplicate content and how can I avoid being penalized for it on my site?


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


Debian 9, APT, and "GPG error: ... InRelease: The following signatures were invalid:"


Why does this user have only have 1 rep but no apparent suspension?

Significantly upvoted posts, not suspended user, despite he has only 1 reputation


How to know size of an array after passing it to a function

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


Send file using POST from a Python script


Problem with sudo and gksudo - cannot open display and no focus on password

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


JavaScript Functions - 'prototype' vs 'this' assignment

Use of 'prototype' vs. 'this' in JavaScript?


Can a finite number have an uncountable infinite amount of non-zero terms?

The sum of an uncountable number of positive numbers


In a finite ring extension there are only finitely many prime ideals lying over a given prime ideal

Finitely many prime ideals lying over $\mathfrak{p}$


Intransitive verbs with preposition in passive sentences

Is “This room was slept in by Milton” grammatical even though ‘sleep’ is an intransitive verb?


Function returns Ajax response - Value is undefined? jQuery Ajax

How do I return the response from an asynchronous call?


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


Emacs interactive Python mode delays evaluation


Acceptable example of when to use a dynamic_cast?

When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?


Why can't you install operating system onto RAM


How to debug a database error of "Incorrect syntax near the keyword X"?

How to deal with SQL column names that look like SQL keywords?


How to put lots of seconds between a command block without using redstone repeater?


FileNames[] output: directories from files?

List all the directories under the current one


How does a liquid state in Earth's inner/outer core allow a magnetic field?


Singular or plural verb form with 'What Ø the cause, progress and result of your actions?'

Singular verb after two noun phrases joined by "and" that can be thought of as a single thing


Appending a row with a button is not detected with jQuery [button.class]

Event binding on dynamically created elements?


Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)


Are large $p$ and $q$ values for ARMA models bad?

Why does default auto.arima stop at (5,2,5)?


How do I return the response from an asynchronous call?


Can I use ECC for encryption/decryption, just like RSA?

How does encryption work in elliptic curve cryptography?


How to get values in window.location.href?

How can I get query string values in JavaScript?


How to connect to Salesforce REST API without OAuth? How does Jitterbit do it?


Python: running tally of iterator values without building a list

Generator expressions vs. list comprehensions


What are the subsets of the unit circle that can be the points in which a power series is convergent?


How to Find All Defaultly Installed Packages on Ubuntu 16.04.3

How do I list the default installed packages?


How to indent an heredoc inside an heredoc the right way?

Can't indent heredoc to match code block's indentation


Is $\bigcup_{i \in \mathbb{N}} \mathbb{N}^i$ countable?

The set of all finite sequences of members of a countable set is also countable


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


Integer solutions to $m+n=\text{gcd}(m,n)+\text{lcm}(m,n)=9!$

Prove that either $m$ divides $n$ or $n$ divides $m$ given that $\operatorname{lcm}(m,n) + \operatorname{gcd}(m,n) = m + n$?


"Not only ... but also" —parallelism in a particular case


LuaLaTeX, TeXLive 2016, standalone: undefined control sequence


Projection of a hypercube along a long diagonal. What is this polytope called?


Gravitational lensing of massless photons


Why the additional properties of "String#match / RegExp#exec" are not in the returned result?

How do you access the matched groups in a JavaScript regular expression?


Words that are pluralized in the middle?


How endianness effects on bitfields when a bitfield is greater than size of byte

Why bit endianness is an issue in bitfields?


Can java labels be used appropriately outside of for loops?


NullPointerException from within Processing's libraries when creating a PShape

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


bcmwl-kernel-source broken on kernel: 5.8.0-34-generic


Develop for iPhone using Windows plateform?

How can I develop for iPhone using a Windows development machine?


How to install mods for the new Minecraft launcher


How to install Pantheon on Ubuntu 15.04?

How to install Pantheon Desktop on Ubuntu 15.04?


Finding $\min f(x)$ where $f(x)=\int_0^1 |t-x|t\,dt \quad \forall x \in \mathbb{R}$

Let $f(x)=\int_0^1|t-x|t~dt$ for all real $x$. Sketch the graph of $f(x)$, what is the minimum value of $f(x)$


Matching email legal statement using regex

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


Book where technology is a banned form of magic

Book about mages who can harvest magical energy from the environment


Is there a particular reason that using clone = obj *1 is avoided when "cloning" objects?

List of lists changes reflected across sublists unexpectedly


Can I install Ubuntu 13.04 on ibm thinkpad a31

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


Ubuntu 18.04 on x86 wants to load arm64 repositories


How to checksum an entire folder structure?


Does getting live/neutral the right way round actually matter?

There's a difference between hot/neutral AC lines in a plug, but does it matter?


Can I use a multiple-entry Schengen visa for business and tourism?

Can I use my Schengen business visa for a holiday?


In 8.0.17 EPSG Spatial reference systems are not available at installation?

RDS MySQL 8.0.16 has empty "INFORMATION_SCHEMA.ST_SPATIAL_REFERENCE_SYSTEMS" table


jquery on click selector even listener not responsive

Event binding on dynamically created elements?


Show that the equation $x^2+y^2+z^2=2xyz$ has no integer solutions except $x=y=z=0$ using modular arithmetic

Integer solutions of the equation $x^2+y^2+z^2 = 2xyz$


How can I disable a stock app that has its Disable button greyed out?

how to disable system apps without root?


Convert and redirect URL in uppercase to lowercase using .htaccess


Is it possible that the interaction effect is significant while the individual effect(s) is not?

The main effect will be non-significant if the interaction is significant?


Bring back review numbers to the top bar


center align equation in \documentclass[11pt,twoside,fleqn]{book}


OpenGL using quaternion to rotate camera to avoid gimbal lock

I'm rotating an object on two axes, so why does it keep twisting around the third axis?


How can black holes have charge when the Standard Model requires forces to exchange carrier particles?

What happens when an electric charge crosses the event horizon?


Should I transfer the money now and reapply?


How can we extract the points of a level-set from a 2D Interpolating function?

How to extract a contour line (or a region) from a ContourPlot?


Punctuation with "The question is..." '.', '?' or ' "... ?" '


Is $G^{(X, Y)} = (G^X)^Y?$ ($A^B$ just means that $B$ is mapped to $A$)


What does the command "sudo mv home/* *" do?

What does `mv ./*` without specifying destination do?


How can I remove the Evolution package completely?


How do I fix the Problem With Half my Object disappearing?


Send broadcast pop-up message to all network Ubuntu systems

How can I send a custom desktop notification?


Unexpected behavior of rule matching a pattern


Reasons why serial algorithm is slower than parallel version without extra threads?

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


Output awk to file and print at the same time

How to redirect output to screen as well as a file?


User cannot access a file after setting an ACL

Precedence of user and group owner in file permissions


Is it common to declare variables of interface type instead of implement it?

What does it mean to "program to an interface"?


Does any example of a function continuous at rationals and discontinuous at irrationals exist?

No function that is continuous at all rational points and discontinuous at irrational points.


How do I remove a . from the start of a Bash string and write the result to a variable?


Remove elements from javascript object with list of keys

How do I remove a property from a JavaScript object?


iOS: NSMutableDictionary propery won't set

Having trouble adding objects to NSMutableArray in Objective C


How to use a variable with innerHTML.replace I.e innerHTML.replace(/var/g, 'var)

How do you use a variable in a regular expression?


Having ssh tunneling itself for remote access from a third machine

Tunnel traffic through another machine over ssh


What is the intuition regarding the different viewpoints of the Kullback-Leibler Divergence and the Kolmogorov-Smirnov Statistic?


Set an initialization vector to HMAC/SHA different from default in Java

Why are the IV (constant) values fixed for HMAC/SHA?


Minimum hardware requirements for ElasticSearch in docker

Can you help me with my capacity planning?


If statement vs function blocks for var keywords

What is the scope of variables in JavaScript?


How many mcpe days does it take to make mossy stone?

How can I get mossy cobblestone on survival in mcpe?


Area of padded square through elementary methods

How calculate the shaded area in this picture?


No content displayed in native Android app


How to display default text for asp.net textboxes


pigeonhole principle: at least 1 match/hr for 75 hrs, at most 125 matches, then exactly 24 matches in some interval


Going to Italy from USA with a Peruvian Passport

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


Hide div when clicking anywhere outside of div

Use jQuery to hide a DIV when the user clicks outside of it


Unity and Compiz not working in 16.04 LTS after 20180221 update


How To Store Tamil Font in mysql database


Why is non-standard analysis not fully or at all integrated in our current school systems (around the world)

What are the disadvantages of non-standard analysis?


Is Java "pass-by-reference" or "pass-by-value"?


How can I programmatically create a DSN?


How can I install Ubuntu Desktop on Ubuntu app on Windows 10?

What's the easiest way to run GUI apps on Windows Subsystem for Linux as of 2018?


How do I recover my accidentally lost Windows partitions after installing Ubuntu?


Proof: For any positive integer $n$, there exists a prime whose first digits are the digits of $n$

Proof that there are infinitely many prime numbers starting with a given digit string


Transforming a list of the form {{{x, y}, z}, ... } into the form {{x, y, z}, ... }


Does the Vampire Knight manga have additional story that the anime doesn't?


For Dragon Age: Inquisition, how do I move my old save files from one system to another?

Is save data from previous Dragon Age games used in Inquisition?


Unauthorized Access using Named Credentials

Salesforce to Xero integration using Named Credentials by OAuth 2.0


Is there a way to unlock screen programmatically?

Unlocking and locking mac screen via ssh


What is the confidence of the solution to a system of linear equations with associated correlation coefficients?

Estimating the intersection of two lines


Sql Query Error "ORA-01403: no data found"

sql server linked server to oracle returns no data found when data exists


Does JVM/GC call `finalize()` on program/thread exit?


How to convert current ubuntu system to a bootable iso?

How to create bootable ISO from an installed OS?


Why doesn't this wget download script work?


Efficient ways to save individual layers or assets in Photoshop CC

Batch export Photoshop layers to individual PNG files


Immortality loop-hole - Hide horcrux inside Fidelus-protected building/place

Why didn't Voldemort hide his Horcruxes using Fidelius Charm?


After cloning my HDD to SSD I can't select the SSD to boot from


How to know when my password will expire?

How to check that a user/password is expired in AIX?


nested while loops not working as expected

Using while loop to ssh to multiple servers


What Nvidia driver is needed for a server?

Ubuntu Server 20.04 Nvidia Driver Dependencies


Find $\int \sqrt{\frac{(1-\sin x)(2-\sin x)}{(1+\sin x)(2+\sin x)}}dx$

Evaluate the integration : $\int\sqrt{\frac{(1-\sin x)(2-\sin x)}{(1+\sin x)(2+\sin x)}}dx$


Help needed with changing the colors in a video


How can I vertically center a "div" element for all browsers using CSS?


How do you find the average of relative uncertainties?

How do you find the uncertainty of a weighted average?


I installed Lubuntu desktop using terminal but my laptop reboots still as Ubuntu


Debian 9.4-- .profile not read on bash login

debian : read order of bash session configuration files inconsistent


How to retrieve radiogroup data from database in JAVA? M Using Java Swing & SQLite


Strange vertical spacing with floats and parskip

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


Javascript difference between function and constructor syntax?

var functionName = function() {} vs function functionName() {}


Drupal 7: use Form API to make a button that doesn't submit the whole page

Ajax Callback Function in Submit Button Doesnt Work


What should the behavior of Disabled Link/Button be?

Hover over a disabled item to know why it's disabled. What do you think?


SQLite figuring out which constraint was violated

Get name of constraint which caused SQLiteConstraintException


Does Mathematica have a built-in tool that allows one to operate on both sides of an equation?


What is the multiplicative equivalent to $\sum$?

multiplication equivalent of the summation symbol


$A,B$ are two real positive matrices then $\det (A+B) > \max(\det A , \det B)$

$A,B\in M_{n}(\mathbb{R})$ so that $A>0, B>0$, prove that $\det (A+B)>\max (\det(A), \det(B))$


How long can cooked food be safely stored at room/warm temperature?

How do I know if food left at room temperature is still safe to eat?


Class used to assign a variable is different from class used to declare it

What does it mean to "program to an interface"?


How to show CTI Adapter only on console but not on other pages

How to remove Open CTI VF softphone page from salesforce left side


I have an overnight layover in Frankfurt. Can I leave the airport?

Do I need a visa to transit (or layover) in the Schengen area?


Postfix GMail bouncing with "very low reputation of sending IP"

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


Are there services that offer to recover data from irreparably water-damaged iPhones?

iPhone 4 water damage - how to recover data?


Possibly fraudulent journal: cite or not to cite?

Is it a good idea to cite paper from publisher listed in Beall’s list


the algorithm speed for pairwise product computation

Big O, how do you calculate/approximate it?


C++ The correct way to multiply an integer and a double


Ubuntu 16.04 rsync via ssh prompts me for password, how to make it a cron job?

is it possible to rsync to another server using crontab?


How to run a script on all *.txt files in current directory?

Find all files in a directory with extension .txt in Python


Automatically execute commands on launching python shell


How to protect my galaxy S9 from data recovery after factory reset?

How to make a complete factory reset, without anyone being able to retrieve my data?


Draw a shape around a set of nodes using TikZ


Is it possible to use \addfontfeature for specific characters?

How to set a particular glyph to be of a particular typeface in XeLaTeX


Countable set of truth assignments satisfying set of well formed formulas


Swapping the limits of integral should change the sign?

Why change the sign of the integral when switching the limits of integration?


Do i need Transit Visa for the Republic of Ireland?

Ireland Transit Visa when flying from IND - Abu Dhabi - Dublin - US


Which equals operator (== vs ===) should be used in JavaScript comparisons?


How do I pass variables and data from PHP to JavaScript?


how to solve 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference in android?

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


Determine if variable is defined in Python

Easy way to check that a variable is defined in python?


How to hide div when clicking outside of it Javascript?

How do I detect a click outside an element?


What is this Java syntax with a section overriding a method after the constructor?

How are Anonymous inner classes used in Java?


There exist a surjection from X to Y and a surjection from Y to X iff there exists a bijection betwen X and Y.

When do surjections split in ZF? Two surjections imply bijection?


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


When underfilling a vbox, leave all the space at the bottom

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


If a newborn baby is born a girl with probability $p$ and a boy with probability $1-p$

Conditional Probability with boys and girls


Is it possible to use the possessive pronoun "whose" for things that are not human being?

Is it acceptable to use "whose" when referring to an object?


Test the series for convergence: $\sum_{n=1}^\infty \frac{1}{n(n+1)(n+2)}$

Find the sum of the series $\sum \frac{1}{n(n+1)(n+2)}$


Do we capitalize the word that comes after a number?

Should I capitalise the first letter when a sentence starts with a number?


Unable to learn weights of a Word2Vec model

What should I do when my neural network doesn't learn?


Use of "them" as an article, not a pronoun


Removing spaces between "words" in math mode


"Tell me why I should marry you" or "Tell me why should I marry you?". Which is correct?

Can a dependent clause undergo inversion in English?


Difference between generic constraint and superclass/interface

Difference between generic argument constrained to an interface and just using the interface


Low Poly Problem in Illustrator - White Lines Around Shapes

Image looks embossed when converted to SVG


how to pass local html files using array in xcode


Write out author name even though it's the same name (BibLaTeX)


Sorting Dictionaries by Internal State of Value in Python


How to yield from parallel tasks in .NET 4.5


Can I use HTML5 data-* attributes as boolean attributes?


Is it valid to ask a question about code style/structure?

Which computer science / programming Stack Exchange sites do I post on?


Build rowSums in dplyr based on columns containing pattern in their names

How to convert a Decimal to a Double in C#?


Exception: at android.graphics.drawable.AdaptiveIconDrawable.isProjected in Android OREO

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


The most efficient way to implement an integer based power function pow(int, int)


correctly dotting the "i"s and crossing the "t"s in the expression "dotting the i's and crossing the t's"

What is the proper way to write the plural of a single letter? Or a word used as a word ('mention' usage)? (another apostrophe question)


Unix shell script find out which directory the script file resides?

How can I get the source directory of a Bash script from within the script itself?


How do I increase my code coverage, or why can't I cover these lines?


Simulate memory warnings from the code, possible?

iOS Development: How can I induce low memory warnings on device?


How do I use a charge density to calculate an electric field (e.g. $\nabla \cdot\vec E = \frac{\rho}{\epsilon_0}$)?

How do I integrate the Poisson equation to determine the electric potential along a particular direction (e.g., $z$)?


How can I export all item IDs, metadata and names? [FTB 1.4.7 Mindcrack]

How can I export all item ID's, Metadata and Names?


What Stack Exchange site to ask a math question on?

What is the difference between mathoverflow.net and math.stackexchange.com?


Return 'dir' command results into array/list


how to perform operations with operator symbol saved in a variable

How to mathematically evaluate a string like "2-1" to produce "1"?


Why is the client not receiving server's reply?

Server socket program not executing after connection establishment


Alternative proof that $(a^2+b^2)/(ab+1)$ is a square when it's an integer


What is the proper usage of "also","too" and "as well"?

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


Do spells that change power/toughness of all creatures until end of turn affect creatures played afterwards?

Does a card that affects 'each' creature affect creatures that enter the battlefield after it resolves?


How to Render Attachments (images) in visualforce

Displaying attachments on visual force page


Is there an example of checking on if a WCF Service is online?

check the availability of the WCF Web Service


Show inline math as if it were display math (and vice versa)


So, is getting a new(past) Tony Stark the most dangerous thing they could ever do?

Why can't the Avengers go back in time and bring an earlier self of the deceased?


Stack Exchange API Optimal, Acceptable Request Frequency

Stack Exchange API too many requests from this IP address


How can I add a VirtualBox machine to the Unity launcher?

Add Virtualbox Shortcut in Unity Launcher to boot to a VM


How to save duplicate images in Excel to different JPEGs


table of contents empty if compiled with LuaLaTex


Can I install 12.04 using Wubi without an internet connection?

Is it possible to install Wubi using the ISO?


The bad sectors amount has been going up a lot

How can I check the SMART status of a SSD or HDD on current versions of Ubuntu 14.04 through 18.10?


What do the steps in ROC curve represent?


I have a true colored image, how to select the 256 colors from?


Port 80: connection refused. How to fix on Mac OSX?

What causes the 'Connection Refused' message?


How can I create launchers on my desktop?


How to run systemctl commands inside chroot container without interactive login?

How to run a command inside a running systemd container


What is the difference and relationship between the binomial and Bernoulli distributions?


Remove duplicates from within two two tables and past into a new table

SQL to extract duplicates into a new table in Access


How Newton's third law is involved in a tug of war?

Given Newton's third law, why are things capable of moving?


About equivalences of linear functionals on a real vector space $X$

Intersection of kernels and linear dependence of functionals


About supported devices under ubuntu touch

What hardware does Ubuntu Touch support?


Optimal location of pagefile on a system with two SSDs, with system drive faster than secondary drive

Should I keep my swap file on an SSD drive?


Can I use C-1/D visa as a transit visa through the US?

Transferring through US airport. Do I need traveling visa?


How to perform an operation at a specified rate

What is the best way to repeatedly execute a function every x seconds?


What would you call a person being coached?


Why should I care about eigenvectors/eigenvalues

What is the importance of eigenvalues/eigenvectors?


A semigroup in which both the equations ax=b and ya=b have unique solution, is a group. Prove it.

Proving that $G$ is a group if $a*x=b$ and $y*a=b$ have solutions.


How to do joins in LINQ on multiple fields in single join


Solving the congruence $3x^2 + 6x + 1 \equiv 0 \pmod {19}$

solve $3x^2 + 6x +1 \equiv 0 \pmod {19}$


12V volts being reduced through a PN2222

GPIO on base of transistor not scaling linearly


Conflict between amsthm, cref, and hyperref

Which packages should be loaded after hyperref instead of before?


Mod of numbers with large exponents [modular order reduction]


What is the preferable setup for MiKTeX to keep all packages up-to-date easily?


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


What is the difference between a field and a property?


How to get 0 records if a particular month has no records?

What is the most straightforward way to pad empty dates in sql results (on either mysql or perl end)?


Why action and reaction forces are not equal while walking on water?

Why can't we stand on fluid surface if newton's third law is applicable


c# linq Query how to write multiple And condition


Do I have a chance at an MSc in Machine Learning/AI with low grades?

How do you get a bad transcript past Ph.D. admissions?


Streaming music between 2 computers via Bluetooth

How can I stream the same music to multiple computers?


Is there any bonus to do all the bounties?

Is there an additional reward for completing all bounties in all acts in a single game?


PhoneGap - Forcing Landscape orientation


Trying to find the name of a story about humanity having the power to collapse quantum states in their favour

Book where human thoughts are affecting the universe


What can I do if a repository/PPA does not have a Release file?


Check my answer: Shortest sequence from $1$ to $2^{2018}$, where each step either doubles or squares the previous value.

If the number $"1"$ is written at the beginning, at least how many steps should be taken to reach $2^{2018}?$


How does the new Deadpool movie relate to X-Men Origins: Wolverine?


Python/Django - How to set default value in custom form?


What happens when a visualforce page run on system mode?

Custom Controllers - effect of running in System mode


how to create an iphone app which generates animations based on input xml


$\langle r\rangle$ maximal $\iff r$ irreducible


how to find time zone name from UTC time offset


Settings.bundle: how should application recognize the fact that a value got changed outside of app?

How to determine when Settings change on iOS


Trouble Installing ubuntu on old machine

Is it possible to install Ubuntu without a CD or USB drive?


How do I start an activity from within a Fragment?


What XP do you lose when you exit a game mid play?

What do I lose when I quit a multiplayer game in BF3?


Do values attached to integers have implicit parentheses?


Append Non-Editable text to body of mail

Disable body of mail in WINRT application


Ubuntu software can't show any app in ubuntu 20.04

The new software center in Ubuntu 16.04 shows no application data found


Using the iterator variable of foreach loop in a lambda expression - why fails?


What sites should have hyperlinking (onebox) support in chat?


My lubuntu is not working properly (I think that is My graphic card)

System freezes completely with Intel Bay Trail


If $\text{Ext}_R^1(A,I) = 0$ for all $A\in ob(_R\text{Mod})$, then $I\in ob(_R\text{Mod})$ is injective.

$\operatorname{Ext}$ and injectives, respectively projectives


Help with Controller Extension Test Class,

How do I increase my code coverage, or why can't I cover these lines?


the benefit of using javascript anonymous functions to initiate objects

What is the purpose of a self executing function in javascript?


capturing the clicked option in bootstrap selectpicker

Get last clicked option in multiple select


How to write “!” symbol between double quotes in bash?

In bash, how do I escape an exclamation mark?


Sine of the sum of two solutions of $a\cos\theta + b \sin\theta = c$

Cosine of the sum of two solutions of trigonometric equation $a\cos \theta + b\sin \theta = c$


Let $R$ be a commutative ring with 1 then why does $a\in N(R) \Rightarrow 1+a\in U(R)$?


Using Bash terminal to run Java applications

How can I execute a .jar file from the terminal


Is it possible to use switch to select ImageFormat?

Is there a better alternative than this to 'switch on type'?


Grouping Selecting unique values in a single column


Why will the number of neutron higher than the number of proton in the most of atom?

Stable Nuclei - Deviation from equal protons and neutrons


Cannot retrieve data from firebase using dataSnapshot

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


Ethernet works with live CD, but doesn't after fresh install.


Fitting data to a log-normal distribution

Is normality testing 'essentially useless'?


Why is a ConcurrentModificationException thrown and how to debug it


Can a website see/know my MAC address even if I use a VPN?

Is your MAC address revealed when you hit up a website?


How to hide the files in a server with 2 sudo users


Direction of Friction Force of a box on a moving truck ( question is different and not as advanced, focused on a situation )


PCA scores in my own implementation have different sign from the ones computed in R

Does the sign of scores or of loadings in PCA or FA have a meaning? May I reverse the sign?


2.8 - Is it possible to assign (override) a material to a whole collection?


What is the best way to visualize Likert-type dependent variables with 2x2 binary independent variables?

Graph for relationship between two ordinal variables


Adding Arabic sources to my bibliography

How should references in non-Latin script language be treated in English paper?


How do I change the hostname without a restart?


Period after period (abbreviation at the end of a sentence)

When "etc." is at the end of a phrase, do you place a period after it?


Shutdown does not clean the state of the drive

Unable to mount Windows (NTFS) filesystem due to hibernation


how do I make my nether portal work in minecraft pocket edition?


How do you interact with a file named "!!"?

How to properly escape exclamation points in bash?


I need help updating Ubuntu 11.04... so many problems

How to install software or upgrade from an old unsupported release?


Get the text of textview and paste it on other one


how to get start with C, C++ coding in unix, and what is the basic packeges needed to install at first?

How to Install a C/C++ compiler in Ubuntu 14.04LTS?


Implicit casting IEnumerable to generic type


The value for the useBean class attribute ... is invalid

JasperException: The value for the useBean class attribute is invalid


I don't understand the usage of "either" in this sentence


Cursor is set to move by increments. how to reset to normal?


Sci-fi book: two college kids witness man's first landing on Mars with a wormhole/travel machine they invented; they're ultra rich and nigh-immortal

Book ID: Astronauts and Lab Students can create portals through space


AIX server DOD method for secure erase disk

Fastest, surest way to erase a hard drive?


If $2^n - 1$ is prime from some integer $n$, prove that n must also be prime.


Is it necessary to eject an external drive before sleeping?

Is it necessary to eject external drives before logging out, restarting, or shutting down?


How to get HTML Table Cell Value through JQuery?

How to get a table cell value using jQuery?


dpkg error: "trying to overwrite file, which is also in..."


SQL Errors on my HTML form which should update my MySQL Database

"Notice: Undefined variable", "Notice: Undefined index", and "Notice: Undefined offset" using PHP


How can a non-operator player run this command by clicking on a clickable tellraw text in 1.13+?

Need help with what non-op players can do in an MC server im making


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


python 3 remove leading substring from string

How to remove the left part of a string?


Ask Ubuntu is giving the wrong certificate

Better HTTPS support for Stack Exchange sites


Where do I find the random generated password after the phpmyadmin installation?


Finding the MGF of a distribution given it depends on another distribution?

Help finding probability generating function


Passing string parameter to method in multi-threaded C# application


ArrayIndexOutOfBoundsException in Java and Hibernate

What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?


Labelling equations as (r.1),(r.2),.. etc using \align

How to force a special numbering for a specific equation


How to link directly to a Google+ Hangout?


Cannot catch access violation exception by use of C++ catch(...)


How can I tell if a CVE has been fixed in Ubuntu's repositories?


Lower case all then capitalize - pure CSS

First lowercase the text then capitalize it. Is it possible with CSS?


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


best practice for consistent text snippets

What is the difference between \def and \newcommand?


Find multiple array inside a single array


How can I prove that $\frac{\sin\theta+ \tan\theta}{2}> \theta$ when $0 < \theta < \frac{\pi}{2}$

Is there a geometrical method to prove $x<\frac{\sin x +\tan x}{2}$?


Randomizing output of HKDF for the same input key material

Multiple AES Key Derivation from a master key


Fetch the row which has the Max value for a column


My boot volume is full, what should I do now?


Is there a category of logical propositions and deductions?

Category theory with objects as logical expressions over $\{\vee,\wedge,\neg\}$ and morphisms as?


Why isn't my website in Google search results?

Why aren't search engines indexing my content?


How is the Legend of Zelda set in so many places?

Are the various "Zelda" games supposed to take place in a common universe?


Prove that the union of two subspaces of $V$ is a subspace of $V$ if and only if one of the subspaces of $v$ is contained in the other.

Union of two vector subspaces not a subspace?


How do you alert users properly that a URL is outdated or broken?

How to handle link rot and broken links?


Simple ordinary differential equations, why is it not defined on this interval?

Why does the interval where the differential equation makes sense not include $x = 0$?


How do I interpret this Python Array code?


How to render image in facelet from external location?

Load images from outside of webapps / webcontext / deploy folder using  or  tag


Upload text to server as a file with HTTP Post using javascript/jquery

How to upload string as file with jQuery or other js framework


Possible for me to purchase my own health insurance pre-tax?

Does the Affordable Care Act (Obamacare) require insurance to be paid with pre- or post-tax dollars?


check if there is a link from the current file

How do I see what symlinks exist for a given directory?


how to fix Nullpointerexception in setOnclicklistener

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


Word for a person who acts super nice to you to impress others, but he doesn't actually mean it?

Is there a word to describe someone who does nice things for others, only to make themselves look or feel good?


Explaining to an 8-year-old why nothing can travel faster than light


Problem constructing Association tables with some operators


please help! how do I make a bootable usb pen drive to install my windows 10 iso on 15.04?

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


Error while inserting the title in each column of the table

Header of table with math mode, align to decimal dot


SELECT values excluding values from other SELECT

Select rows which are not present in other table


Subgroups of finitely generated groups are not necessarily finitely generated


Changing the Attribute table view in QGIS 3


Why does C++ show characters when we print the pointer to a character type?

Why does cout print char arrays differently from other arrays?


How do I redirect output of command into ls?

Pass the output of previous command to next as an argument


Is there an integral domain in which all elements are reducible?

Integral domain that is not a factorization domain


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


Bash misinterpreting a sed statement to rename files


Alternative to using backspace character in output text?


how to create xml files via php and MySQL

How to generate XML file dynamically using PHP?


Efficiently finding the last line in a text file

Get last n lines of a file, similar to tail


How can I create a flowing, rippling water surface effect that follows the curves of a river mesh?

River simulation - different approaches than fluid simulation?


Show that $(A\setminus B) \cup (A\setminus C) = B \Leftrightarrow A=B \wedge (B \cap C) = \emptyset$

Proving statement - $(A \setminus B) \cup (A \setminus C) = B\Leftrightarrow A=B , C\cap B=\varnothing$


How can i remove a item from a list whilst creating another list with the removed items?

How do you split a list into evenly sized chunks?


What is the scope of this global / function variable?

What is the scope of variables in JavaScript?


Tried to clear trash and everything go removed!


How do you round numbers so that it affects computation?


Prove $\sin x$ is uniformly continuous on $\mathbb R$


How do I restrict my kids' computing time?


Display Commas in Large Numbers: JavaScript

How to format numbers as currency strings


RAID0: Can I transfer my disks onto another motherboard/RAID controller?

Will my RAID0 stay intact when I move it to a new computer?


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


Showing that the groups (Q,+) and (Q⁺,*) are not isomorphic

Group of positive rationals under multiplication not isomorphic to group of rationals


How to really force delete a file / folder in Windows 10


when do we omit the article in an OF-phrase?

Are there any simple rules for choosing the definite vs. indefinite (vs. none) article?


Installing Ubuntu over Windows 10 on a drive with only a few gigs of free space?


When $(x^m-y^n)$ is a prime ideal in the Ring $R[x,y]$?

$X^n-Y^m$ is irreducible in $\Bbb{C}[X,Y]$ iff $\gcd(n,m)=1$


Why is my MacBook Pro already using swap memory?

iMac with 8GB RAM -- memory always almost full


How to get a string representation of hex?

How to convert decimal to hexadecimal in JavaScript


Euler Project #8: What am I doing wrong?

What is the bit size of long on 64-bit Windows?


How do I force a refresh after rendering animation?

Blender is rendering an older version my project


Adding video file to iphone simulator path, but not showing in simulator


An equivalent condition to normality of topological spaces

Normal space- equivalent condition: $\forall U, V$ - open $: U \cup V = X \ \ \ \exists F \subset U \ , G \subset V$ - closed $: F \cup G = X$


Select the best point pair in the 2D grid

Creating an index of quality from multiple variables to enable rank ordering


Compute mean and variance of mixture of Gaussians given mean/variance of component gaussians

What is the variance of the weighted mixture of two gaussians?


Is there any way to call the parent version of an overridden method? (C# .NET)


Control table column width with text wrapping

My table doesn't fit; what are my options?


Compiling python to a single .exe, why is this so difficult?

py2exe - generate single executable file


How to fix the text inside the parent element so it wont expand beyond the parent element's width


Can we remove the bulletproof vest on the character (GTA V - Online)?

How do you take off body armor in GTA Online?


Objective C. Save objects of string in file

Make a Custom Class Serializable in Objective-c/iPhone?


Unable to resize the partition because the disk was locked in Ubuntu 18.X


What is a female or gender neutral form of gentleman that relays the same tone of respect?

"Gentleman" is to "male" as what is to "female"?


What is 'this' referencing when it is inside a prototype?

What does "return this" do within a javascript function?


How well-known is the theology of Middle-earth, in Middle-earth?


How to test multiple variables against a single value?


Integral of (tan inverse ax)/x(1+x^2) from 0 to infinity using contour integration

Integral $\int_0^\infty \frac{\arctan(x) dx}{x(1+x^2)}$?


How to display web site in top searches in a serach engine?

What are the best ways to improve a site's position in Google?


How to allow Desktop Sharing to work after reboot?

Remote login with graphical display manager (GDM, LightDM)


How to assign an event to a button press

Listen for key press in .NET console app


Repost: Is it possible to wipe an entire iCloud Photo Library?


How can I deal with having to code classic ASP?


How to remove \n\t\r from list in Python?


What is syntax highlighting and how does it work?


How can I access this anonymous class method in java?

Using an arbitrarily defined method of an anonymous interface


Proove that $\det(L_B) = \big(\det(B)\big)^n$, $\det(R_B) = \big(\det(B)\big)^n$.

Trace and determinant of composition of a left-multiplication and a right-multiplication on a space of matrices


replace non-ASCII characters like "ó" with their equivallent UTF-8 format "o"

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


Adding an image in Latex - but image not in right place

How to influence the position of float environments like figure and table in LaTeX?


How to use files from source package (what's the path?)


How to do a case-insensitive LIKE in a case-sensitive database?

Why Does the Transaction Log Keep Growing or Run Out of Space?


Matrix exponential for Jordan canonical form


Describe all $R$-modules of low order (up to isomorphism)


Command/macro name cannot include numbers and symbols


Who is the single most powerful entity in the marvel universe?

Are there any actual gods in Marvel comics?


If there is a super massive black hole at the center of our galaxy then why is the center of our galaxy so bright?

Why don't the black holes appear black in color in images of galaxies taken from HST?


I'm upgrading from 18.04 to 20.04. Which of these files are the most important to backup?


Finding the gcd of polynomials $p,q$ and writing $\gcd(p,q)=d_1(x)p+d_2(x)q$

Why does the Euclidean algorithm work for polynomials? What is the proof?


How can I prove this ? $\sum\limits_{i=1}^N \frac{1}{\sin^2(\frac{i \pi}{2 N})} = \frac{1}{3}(2N^2+1)$


How to calculate the sum $\sum_{i=0}^\infty i^nx^i$

Compute the sum $\sum_{k=1}^{\infty}k^mz^k$ where $|z|<1$


Why is the collection of all groups a proper class rather than a set?


$f(x)= 0$ for $x \notin\mathbb{Q}$, and $f(x)=1/q$ for $x=p/q$. Prove: $f$ is integrable


Can there be significant new changes in physical features of Humans due to evolution in 10000 years of span?

Are there any scientifically based predictions or theories of future human evolution?


Why should users never use normal sudo to start graphical applications?


matplotlib.pyplot/pylab not updating figure while isinteractive(), using ipython -pylab


How can I draw 2 separated lines in the same line, and write centered text below them?


RecyclerView returning null for adapter position

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


We know that $A^{23} = 0$. What are the eigenvalues of $A$?

Prove that the only eigenvalue of a nilpotent operator is 0?


Skipping every even numbered item in the enumerate environment


Synaptic package manager not launching in Ubuntu 17.10

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


What is the difference between these two CSS expressions?

What's the difference between CSS classes .foo.bar (without space) and .foo .bar (with space)


How to add a path to sys.path permanently

Add a directory to Python sys.path so that it's included each time I use Python


Where should a local executable be placed?


Showing $\gcd(a,b,c) = \gcd(a,\gcd(b,c))$ without using Bezout's lemma and only the definition of the gcd

$\gcd(a,b,c)=\gcd(\gcd(a,b),c)\,$ [GCD Associative Law]


My applications for PhD in Neuroscience got rejected? How to be an extraordinary candidate for PhD?

How does the admissions process work for Ph.D. programs in the US, particularly for weak or borderline students?


Why is the sum function improperly rounding two floats


Adjusting the distance between the x ticks in tikz


How do you provide a discriminated union from an F# type provider

Providing a Discriminated Union from an F# Type Provider


What is the conceptual difference between posterior and likelihood?

Likelihood vs conditional distribution for Bayesian analysis


Can the referees self-evaluate during the breaks/intervals?

What do football (soccer) referees do during halftime?


Why can I not save an edit for a question when I only edit a code block?

What about lowering the edit character limit for characters in code snippets?


A Java collection of value pairs? (tuples?)


How can we relate the idea of flux with electric field


If P(a,b|c) is known, how do I find P(a|c) and P(b|c)

How to compute a marginal probability function from a joint probability function?


Canada to India via Germany on Expired Canadian Visa

Do I need a visa to transit (or layover) in the Schengen area?


How are bones & armatures connected to the rest of a model?


I want to override theme node.tpl.php file with node--[content-type].tpl.php in my custom module

How a module can override theme suggestion?


How do I put a count function on my SharePoint list?


Prove that$ f\Bigg(\sum_{i=1}^n \lambda_i x_i\Bigg) \leq \sum_{i=1}^n \lambda_i f(x_i) $ for a convex function "f"

Show that $f$ is convex if and only if $f\left( \sum_{i=1}^m\lambda_ix_i \right) \leq \sum_{i=1}^m\lambda_if(x_i)$


Does root has access of files that he doesn't own?

How do file permissions work for the "root" user?


How would it be if a SE site is created on Bangla (=Bengali) language?


Does every professor need to do research?

Is it possible to get an assistant professor position that does not require doing research?


I want to see System Messages in Diff language


java.lang.NullPointerException: Attempt to invoke virtual method getDrawable on a null object reference

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


How is floating point stored? When does it matter?


Why was the switch statement designed to need a break?


Emission texture won't show light in viewfinder or rendered image

How to make mesh lights work in Blender Eevee?


In Win10 can a Storage Space 2-way Mirror be the System disk?

Can I install Windows 8 onto a Storage Spaces Pool


Virtualbox: Loading of unsigned modules is restricted

Could not load 'vboxdrv' after upgrade to Ubuntu 16.04 (and I want to keep secure boot)


Experimental proof of time-reversibility in microscopic classical physical laws

What sort of experiment would directly test time reversal invariance?


Google Chrome Console RegExp weird behavior

Why does a RegExp with global flag give wrong results?


Will my Battery get harmed if not used for long time?


All pages from my site are showing a 404 error in the Google cache from search results

"404. That’s an error." when viewing from Google cache


Can I simplify an expression into form which uses my own definitions?


How do I create a full project from a sandbox project?

How to create a full project on drupal.org?


How is the zero flag set in terms of hardware?

How to find out if a binary number is zero


shell/bash script to delete files from FTP directory older than 30 days


Old sci-fi short story about bombs sent back through time and space by aliens to destroy earth

Science fiction novel with the title "T" (which is also the name of the protagonist)


Export to OBJ missing texture image name

.fbx export why there are no materials or textures?


In Ender's Game, why was Peter considered too violent to commit genocide?


Product of all elements of a finite group with an unique element of order 2


How do I deal with a compromised server?


The cardinality of $\{f\subseteq\mathbb R^2\mid f\colon\mathbb{R\to R}\text{ is a function}\}$ is strictly greater than the cardinality of $\mathbb R$

Cardinality of $\mathbb{R}^\mathbb{R}$ by diagonal argument


Why can I access an item in KeyCollection/ValueCollection by index even if it doesn't implement IList(Of Key)?


Keep getting java.lang.NullPointerException when trying to read from JSON file

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


Error when trying to setAdapter again in recyclerView


How can I install a package without root access?


Can you export thousands of objects in a blender scene to .obj format Individually (and automatically)


How do I use a particular font for a small section of text in my document?


Recover files after installing ubuntu on a PC that previously had Windows 7

Recovering broken or deleted NTFS partitions


Why does work depend on distance and not time?

Why does holding something up cost energy while no work is being done?


How to reference an equation number within TikZ


Should I send low GRE mathematics score to universities?

How does the admissions process work for Ph.D. programs in the US, particularly for weak or borderline students?


Clocks for multiple timezones in GNOME Shell


QGIS Extract elevation data only for one country

Extract certain area of contours/satellite images


How do I get attention for old, unfixed bug reports and feature requests without official responses here on Meta?


Output Output of command to command line directly, NOT variable

Construct a command by putting a string into a tty


How do I select the object creation menu?

'Adjust Last Operation' panel closes when trying to change values


Automating Buffer Wizard in ArcGIS Desktop by working in Shell

Getting buffer wizard-like speed in Python (vs using MultipleRingBuffer_analysis)


Prove the following trigonometric identity without a calculator involved

$\sum \cos$ when angles are in arithmetic progression


Java : Run-Length Encoding implementation

What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?


Wordsmith, singer, Leonard Cohen was perplexed as what word rhymes with orange?

Why does "orange" rhyme with (almost) nothing in English?


Limits of the Universe: how can be sure about the size of unobservable Universe?

How do we know the size of the universe?


SimpleDateFormat ignoring month when parsing


Prove that $gcd(\mid G:H\mid,\mid G:K\mid )=1\Rightarrow G=HK$

If $[G:H]$ and $[G:K]$ are relatively prime, then $G=HK$


When does $a\mid c$ and $b\mid c$ imply $ab\mid c$?

finding all numbers $a,b$ that divide $c$ but product of $a$ and $b$ does not divide $c$


How to delete dial number from call log in android?

How to remove call logs from android programmatically?


Why is Windows 8 waking up the PC even when there are no wake timers and no pending maintenance tasks?

How can I prevent my computer from waking up accidentally?


Sci fi TV series about a parallel universe where belts let them stay there and give them power

90s (or early 2000s) scifi (mini)series where a boy and old man chase a black guy in metal suit


How does regularization reduce overfitting?

(Why) do overfitted models tend to have large coefficients?


"Stray '\226' in program" compiler errors

Compilation error: stray ‘\302’ in program, etc


Help finding an anime whose protagonist's biggest dream was that he was never born

Anime where a character works to prevent his birth


10 GB file of "size-on-disk <100 MB": why does a copy take so long?

copy|move sparse files on NTFS with Windows


PHP Tidy alternative to only tab-indent output

PHP function/class that formats/indents my HTML code?


Does Stack Exchange have an email notification option?

Control the types of email you receive via our new Email Settings feature


Update texlive-full 2015 to texlive 2017 in Ubuntu 16.04 LTS

Install packages from newer release without building (apt pinning)


how to change xyz@abc where i need to change xyz when terminal starts

How can I shorten my command line (bash) prompt?


Does $\langle ( 1 ,3), (1, 2 ... ,10)\rangle$ generate the group $S_{10}?$


MySQL - Number assignment according name ordering


With + noun+noun? Does this structure work?

Can a present participle follow a subject?


Feature becomes invalid when reading through WFS/GML in GeoServer

What causes these geometry differences between original PostGIS data and Geoserver WFS?


How to convert MBR disk to GPT disk on Windows XP?

Easiest way to use a > 2TB internal hard disk in Windows XP 32-bit?


Unable to get file type for certain file


SQL add 2 hour to a column with type "date"

Oracle: how to add minutes to a timestamp?


Where can I find out who the mods of a site are?


pgfplots external with large dataset (lualatex?)

TeX capacity exceeded using pgfplots with/without externalization


How to return multiples variables from a function in c++

Returning multiple values from a C++ function


Difference between explicit delegate and method group in a thread constructor

Differences in assigning C# event handlers?


How do i remove broken packages who prevent new installations?

Unable to correct problems, you have held broken packages


Windows 10. How to find what app or process has openeded the message window?

In Win10 is there a fool proof way of discovering which App is displaying a given pop-up?


Use of expired French ID to travel to the UK for 2 weeks

Visit the UK with an expired French identity card


What is the difference between the two time derivatives $\frac{\text{dL}}{\text{dt}}$ and $\frac{\partial \text{L}}{\partial \text{t}}$?

What is the difference between implicit, explicit, and total time dependence, e.g. $\frac{\partial \rho}{\partial t}$ and $\frac{d \rho} {dt}$?


Can anyone recommend a good Hashtable implementation in Javascript?

How to do associative array/hashing in JavaScript


Recursive grep vs find / -type f -exec grep {} \; Which is more efficient/faster?


Duplicates in linked and related questions

Linked and Related sections contain duplicate links to questions


Do I need a visa to transit (or layover) in the Schengen area?


How to modify an invalid '/etc/sudoers' file?


My linear voltage regulator is overheating very fast


Deriving effective potential energy from the Lagrangian of a two-body system


Executable not visible when run with sudo


Sources for AT&T syntax instruction format

Is there a complete x86 assembly language reference that uses AT&T syntax?


How do I link back out of a folder using the a-href tag?


understanding resolve.conf nameserver through system calls

understanding resolv.conf nameserver through system calls


How to use Cyrillic letter as a mathematical symbol?

What packages will let me use Cyrillic characters in math mode?


How should I handle possible revenge downvotes?

How should we handle downvote retaliation?


Einsteins theory of relativity and formula of kinetic energy

$E=mc^2$ resembles non-relativistic kinetic energy formula $E_K = \frac{1}{2}mv^2$?


How to make ArrayList by type like (Button) R.id.buttonId?

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


Allow personal messaging to pro members of stack community?

Any way to send a personal message to another user?


What is the proper way to loop through each directory in a for loop?

How do I loop through only directories in bash?


Effect of relativity on observers of two different inertial frames observing an event taking place very far away


Prevent my AdWords ads from showing on queries for my brand

AdWords: unauthorised use of trademark in keywords


Prove $\sum^n_{k=0}{n \choose k} 2^k=3^n$

Prove $\sum\binom{n}{k}2^k = 3^n$ using the binomial theorem


Is it possible to set Firefox as the default browser in iOS?

Can I make Firefox the default browser in iOS


Killing android monkey process via adb only


Can I supply a device rated for 1A with 15A power supply?

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


What are all the common undefined behaviours that a C++ programmer should know about?


Can the Forbiddance spell be placed on a moving area? (like a ship)

Do spell effects move if the object they are cast on moves?


insert checkbox selected value into database on submit in php

Good tutorial on how to update your Mysql database with a PHP form?


Count the duplicate words in a text mysql

Count occurrences of a sub string in a MySQL column


How find the function $f(f(x)+xy)=f(x)+xf(y),\forall x,y\in R$

Find all functoins $f: \mathbb R \rightarrow \mathbb R$ such that $\forall x,y \in \mathbb R f(xy+f(x))=xf(y)+f(x)$


Many of my apps crash right after starting, since yesterday

com.google.android.trichromelibrary causes many Android apps to crash


Finding all integral solutions of $x^4+y^4+z^4-w^4=1995$

Find all integral solutions of $ x^4 + y^4 + z^4 -w^4 = 1995 $


Don't close questions where the user has requested that it not be closed


Is cookie part of the header of a http request/response? Is it a key value pair? How different is it than Accept or Content-type header keys?

Confusion about how java web session handeling works. Demystifying Cookies and Header differences using servlet api and HttpSession object


Who does the data explorer think I am John.Doe

Why am I jon.doe when logging into Data Explorer?


How to calculate the average of a set of measurements with uncertainties?

How do you find the uncertainty of a weighted average?


Split data frame string column into multiple columns


Useful Shortcuts in eclipse to analyse the existing application

Eclipse - List of default keyboard shortcuts


How do I combine/exclude multiple tags from a search?


How to get Google to consider what appears as object in the right column of SERP

What contributes to expanded company details being displayed in Google search results?


EU citizen traveling with non-EU spouse (with residence permit in EU) to the UK

Can I travel to UK with my Italian national daughter and husband with my permesso di soggiorno?


Regex to accept only alphanumberic and special charaters (restrict emoji)

RegEx for Javascript to allow only alphanumeric


ImageView width and height returns 0 after rotating the screen

How to retrieve the dimensions of a view?


Has anyone ever got in legal trouble for not having those horrific "cookie warnings" on their site?

Has the EU sued any site(s) yet for not complying with their cookie "law"?


Proof of inequality and determining convergence/divergence

Proving $\frac{1}{\sqrt{x}}\ge \frac{2}{x+1}$ for $x> 0$


Silent Installer For Windows built via Inno Setup

How to make the silent installation by using Inno Setup?


How to remove Ubuntu from dualboot with Windows 10 and install it again?

How to replace an old version of Ubuntu with a newer one from USB/DVD?


What is the natural ( and historical) motivation for determinants?

Development of the Idea of the Determinant


Get the real width and height of an image with JavaScript? (in Safari/Chrome)


How to convert Excel spreadsheet 2007 to pdf in Linux


Not able to install nodejs in ubuntu command line

Unable to correct problems, you have held broken packages


Failed to fetch ppa - cannot update anymore


How do I update the timezone on a travelling Windows laptop?

Automatically change time based on current location


How to create an encrypted partition and how does Linux then decrypt it

Creating an encrypted partition to store private keys


What is the LaTeX command or package that allows one to include command line examples in their document?


List of lists changes reflected across sublists unexpectedly


To-infinitive usage: which sentence is correct?


Can't delete time machine backups - error 8072


ArcMap "clip to shape" analogue for basemaps in QGIS?

Clipping raster with vector boundaries using QGIS


Prove that $(n!)^{2}>(n)^n$ using inequality


How can I replace the code with preg_replace_callback()? (/e)

How to convert preg_replace e to preg_replace_callback?


What does "/" , "./", "../" represent while giving path?


Is there easy and safe way to resize /boot


Bluetooth audio delay / lag, reason completely unclear to me


Do light particles come in different sizes?

How is wavelength actually related to space (/distance)?


Moving certain variables to one side of the equation

Is it possible to have Mathematica move all terms to one side of an inequality?


How can I determine which process owns a hotkey in Windows?


How to check digital licenses linked to my Microsoft Account?

How to reinstall Windows 10 on new hard disk


Module dependancies in IntelliJ12 not working for packages

How to access java-classes in the default-package?


Can a virus break out of a Virtual Machine and infect the host


How to remove an element inside a div in jquery

How can I remove a child node in HTML using JavaScript?


Proximal Operator of a Composition of Functions


Replace bytes in big file using Linux command line

How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script


How to install Realtek drivers from GitHub


How to know the specific ARIMA model through its yt equation?


Minecraft 1.12 Multiplayer world to singleplayer

Transfer world from multiplayer to singleplayer and continue with the right progress


How to measure the Success of Logistic Regression


Why not display characters which I typed in tty?


I don't understand WHY numerical sort functions work in Javascript

How does sort function work in JavaScript, along with compare function


What is the  thing in a hashmap, and how do I use it in my own class?

What do  mean such as implements Comparable?


PuTTY or OTHER - Keep executing command even after exiting PuTTY

How can I keep a process alive after closing the putty session?


Object is not updated (by Lambdas filter) when passing it (by reference) to a method

Is Java "pass-by-reference" or "pass-by-value"?


Idioms for a 'obvious' or 'needs no explanation'

What is the idiom for "as anyone can see" or "clearly"?


Attempt to invoke virtual method 'java.lang.String org.ksoap2.serialization.SoapPrimitive.toString()' on a null object reference

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


can't ssh into remote host with root, password incorrect


How to install ubuntu 14.04 inside window 7 using wubi without internet?

Windows installer for Ubuntu 14.04 LTS onwards


Making an addon, how do I pass information between a UI panel button press and my custom operator?


Is matrix equality $AB-BA=I$ impossible?


how to press keyboard with Jquery/ Javascript

Could a website force the browser to go into fullscreen mode?


How can I uninstall the Cyanogen Mod 7 for my Htc Incredible 2?

Where can I find stock or custom ROMs for my Android device?


Prove $\lim_{x\to a }{ f(x)\over g(x)}={ L\over M}$


How to reverse (or, mirror) texts in latex?


How to diagnose slow booting or logon in Windows?


Class vs Lib, different behavior in variadic template functions

Why can templates only be implemented in the header file?


How can I keep a metal post from rusting?


What is the difference between Private properties with set/get and private properties without set get in C#

What is the difference between a field and a property?


How to use my PHP function in JavaScript code


How can I get Firefox and IE to register a canvas click?

How do I get the coordinates of a mouse click on a canvas element?


What is the scope of variables in JavaScript?


Taking letters and numbers from different fonts

Importing a Single Symbol From a Different Font


Does $\sum_{n=1}^{\infty} \frac{\sin(n)}{n}$ converge conditionally?

How to prove that $ \sum_{n \in \mathbb{N} } | \frac{\sin( n)}{n} | $ diverges?


Set existing service to "Auto (Delayed start)"

How to make Windows Service start as "Automatic (Delayed Start)"


requested url is invalid for this ftp command

"Requested URI is invalid" during upload with FtpWebRequest


Why is it true that $\mathrm{adj}(A)A = \det(A) \cdot I$?


C++ Inheritence vs Using parent class as a field in children classes


Check if check box is checked using PHP and AJAX

How do I check whether a checkbox is checked in jQuery?


How to Flatten a list to use the inner lists inside Sum

How to programmatically specify multiple iterators?


Copy file from SSD to HDD, SSD shown as 100% busy – why?


Variable not updating in AsyncTask when I run it


How do I use reflection to call a generic method?


Multiple string comparison in a single if statement shell script using OR gate

Using the not equal operator for string comparison


Best method to round up to the nearest 0.05 in java


How to make one color transparent on a UIImage?


Is there an OBJ Sequence import script or add-on?

How can I import an obj sequence into blender?


Correlations with unordered categorical variables


how to find differential of $\sin^{-1}x$ using first principle?

question about the limit $\lim_{h\to0}\frac{\arcsin(x+h)-\arcsin(x)}{h}$


Skype 4.3.0.37 stopped working after installation of Nvidia 340.32 drivers


How to fix 'sudo: no tty present and no askpass program specified' error?


SSL certificate selection based on host-header: is it possible?


In case I do not get answers tools for this question and wish to program/ automate for this, which site should I go and post to?

Which computer science / programming Stack Exchange sites do I post on?


Why choose an APS-C mirrorless kit over a full-frame SLR kit?

What do I need to consider to choose between dSLR, mirrorless, or a compact as my first "serious" camera?


USB stick mysteriously become write protected


when using tabularx and X, how to make the text vertically centered?

Vertical centred alignment of text in table cell


What's the difference between "if" and "whether"?


Various *sty files missing when using adjustbox

! LaTeX Error: File `adjustbox.sty' not found on Ubuntu 10.04.2


Is a small tube of Gorilla glue permitted in hand luggage on board plane?

Can you take Gorrilla Glue in Hold Luggage on a plane?


Wireless USB Adapter 0bda:c811 Realtek Semiconductor Corp


How do I kill grelod the kind with out getting noticed ?? On Xbox 360


Where do I place my own .sty or .cls files, to make them available to all my .tex files?


Can I build infrastructure on a town's seed tile without affecting town growth?


New Wooden decking. To stain or not to stain

How long should I wait before painting or staining pressure-treated wood?


I can't dig certain materials in Minecraft


Unable to TRUNCATE table even when no child records exists

Cannot truncate table because it is being referenced by a FOREIGN KEY constraint?


What are the dev-loop services that started on boot?


Authorindex with natlib fixes do not work


A question about 16 bit ADC representation

What value to use to convert ADC value to voltage?


Will lenses of a different brand work on a Nikon DSLR?

Can I use lens brand X on interchangeable lens camera brand Y?


Compute $\lim\limits_{n\to\infty}(x_{n+1}-x_n)$ if $x_n =\sum\limits_{k=1}^{n-1}f(\frac kn)$ and $f$ continuous (but not continuously differentiable)


rename files in a directory to insert spaces before and after a dash


Difference between ' and " on command line (bash)?


Unable to paste unicode character into MySQL console


Hibernate Postload and null fields on referenced entities

Reading a Set in PostLoad on JPA/Hibernate


When should compound words be written as one word, with hyphens, or with spaces?


computing the limit of $\frac{1}{n} \sum_{k=1}^{n}{\frac{1}{k}}$

How to show that $\lim \frac{1}{n} \sum_{i=1}^n \frac{1}{i}=0 $?


How to install mods for the new Minecraft launcher


MySQL InnoDB Full Text Search is very slow when combined with other filters


How to draw toroidal grid diagrams in TikZ


Java Generate Random Number Between Two Given Values

How do I generate random integers within a specific range in Java?


What Delphi coding standards document(s) do you follow?


What are the details/implementation of the draft feature?


Difference between 'One to One' and 'One on One'?


Proving that $ 2 $ is the only real solution of $ 3^x+4^x=5^x $


Print PDF at ClientSide Browser without Opening PDF


JavaFX Application Thread" java.lang.NullPointerException

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


Why are the eigenvalues of $X'X$ equal to that of $XX'$ when $X$ is a design matrix?

What is the duality relationship between eigensystems of X X' vs X' X?


ValueQ returns false positive for one argument type only


Execute command from file in current shell


switch between battery and usb power no microcontroller circuit


Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: org/springframework/jdbc/core/RowMapper

Why am I getting a NoClassDefFoundError in Java?


Error : System.IndexOutOfRangeException: Index was outside the bounds of the array

What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?


Counting items in itemize or enumerate environments

Count and use the number of items in advance


Is there a word with phobia suffix for fear of waking others up?


Editing question title creates whole new question and other question list problems


Processing list of files variable in bash

How to iterate over arguments in a Bash script


Does a verbal noun turn back into a verb when modiﬁed by an adverb?

Should I modify a gerund using an adjective or an adverb?


Plotting Normal distribution with extra label in pgfplots

Can someone pgfplots the following picture concerning confidence intervals?


How to add a label based on multiple fields and brackets in GeoServer SLD

Showing Two Labels of One feature In GeoServer?


Why do I have 'glitched' areas in my render after enabling denoising?


Visual Studio Control for different tabs

Hide TabControl buttons to manage stacked Panel controls


Naming table when writing layer to geopackage using PyQGIS

Adding layers to GeoPackage using PyQGIS


What's the simplest way to print a Java array?


How would you go about reverting a single file to previous commit state using git?

How can I reset or revert a file to a specific revision?


How to have every attribute's names and values of an element?

Get all attributes of an element using jQuery


Examples and further results about the order of the product of two elements in a group


Help Installing Linux W/ Ubuntu onto a Usb stick to boot from another computer From a Linux Machine

How to create a bootable USB stick on Ubuntu


Going JavaScript to PostgreSQL and back!

Why does a JSON element return text when it's not text?


Extending a class in Python 3 and construct it with __init__


N[number, 100] does not give 100 decimal places

Confused by (apparent) inconsistent precision


message plus response probability problem


Exception in thread "main" java.Lang.NullPointerException; unable to identify problem

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


The cleveref capitalize option does not seem produced capitalized output

Here is another example where cleveref does not capitalize when it should


Moving range in jQuery UI slider by dragging

Drag the Range of a UI Input Range Slider


How do I switch to a closer Ubuntu mirror?


Is there a Visual Studio style tool/IDE?


How can I edit/create new launcher items in Unity by hand?


The growing expansion speed of our universe


How do I make an HTML text box show a hint when empty?


`.' cannot appear in a constant-expression


why am I getting this error meassage when trying to sign up on Area 51 with OpenID account?

Unable to log in with your OpenID provider: Message signature was incorrect on Area51 only


Prove that every permutation is the product of disjoint cycles

Proving that any permutation in $S_n$ can be written as a product of disjoint cycles


How to log user in to multiple drupal sites?

Distributed authentication system (different domains, separatate databases)


ActiveRecord group by multiply field and count

Applying aggregate function SUM together with GROUP BY


/var/log/messages contains series of ^@ char


old dell xp given to me by work. used to be network logged on machine

Create a Windows XP user from a linux partition


How can I explain to people that the phrase “off of ” is grammatically incorrect?


Tooltip for deleted post contains a snippet of a post

Should I be able to see the first few lines of a deleted post from my flag summary section?


Automatically restart a crashed software

How do I automatically restart docky after a crash?


Existential quantifier distribution over imply

Does the existential quantifier distribute over an implication?


Adding fractions in two ways - a paradox?


Why is my aperture limited to less than the maximum even in manual mode?

Why do zoom lenses and compact cameras have varied maximum aperture across the zoom range?


Artificial Neural Network for time series analysis - $R^2$ scores

Is my model any good, based on the diagnostic metric ($R^2$/ AUC/ accuracy/ RMSE etc.) value?


Ubuntu takes ~30 minutes to remember my monitor settings


How could I know my server's operating system?

How can I tell what version of Linux I'm using?


What is the difference between those two implementations of a singleton?

Is there an advantage to use a Synchronized Method instead of a Synchronized Block?


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


Is there a constraint that restricts my generic method to numeric types?


Does the sequence $t_n=\sqrt{a_1+\sqrt{a_2+\cdots+\sqrt{a_n}}} (a_k>0,k=1,2,\cdots)$ converge?

Definition of convergence of a nested radical $\sqrt{a_1 + \sqrt{a_2 + \sqrt{a_3 + \sqrt{a_4+\cdots}}}}$?


Can you create a new wpdb that connects to an SQL (not MYSQL) database?

Using wpdb to connect to a separate database


What does the ending of the 2013 film Enemy signify?

Is there significance behind the spider visions in Enemy?


(Built-in) way in JavaScript to check if a string is a valid number


prove if $a$ is odd then there exists a Pythagorean triplet with it

Prove that any odd number can be a leg in a Pythagorean Triple


Prove that $\mathbb{R}^n$ cannot be a finite union of its hyperplanes .

If a field $F$ is such that $\left|F\right|>n-1$ why is $V$ a vector space over $F$ not equal to the union of $n$ proper subspaces of $V$


Upload Image From Android to Php Server without External Library

Android: Uploading image on server with php


How to access class of appended div using jquery

Event binding on dynamically created elements?


Node.js - check if module is installed without actually requiring it


Compiler not recognizing that class string value is equal to another String value


Is G/H a group even if H is a subgroup of G but not a normal subgroup?

Why do we define quotient groups for normal subgroups only?


Unmet dependencies in Mysql server and Myserver Client when I tried to install "Lamp server"

Unable to correct problems, you have held broken packages


Two apalike.bst file in unix texlive distribution: One in ./local/texlive/2016.. and other in ./share/texlive/

How to install "vanilla" TeXLive on Debian or Ubuntu?


Deleteing photos from device but still have them in the backup (default Google+)


Why does char* s result in a bus error here but char s[] work fine?

Why do I get a segmentation fault when writing to a "char *s" initialized with a string literal, but not "char s[]"?


Product formula for $\sum_{k=0}^n\frac{(-1)^k}{2k+1}\binom{n}{k}$

Proving a binomial sum identity $\sum _{k=0}^n \binom nk \frac{(-1)^k}{2k+1} = \frac{(2n)!!}{(2n+1)!!}$


Java : error : java.lang.NullPointerException

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


Link-only answers in Low Quality review - how are these (are these?) supposed to be dealt with?

Your answer is in another castle: when is an answer not an answer?


Where can I get a Thunderbolt hub or splitter?


The Invisibility of the NULL value that is returned by a loop


Complex analysis prove uniform convergence question

Proving that $f(z)=\sum\limits_{n=1}^{\infty}\frac{z}{n(1+n|z|^{2})}$ converges uniformly on $\mathbb{C}$


Interpreter return "UnboundLocalError: local variable 'len' referenced before assignment" error

UnboundLocalError on local variable when reassigned after first use


Proving |f(z)| is constant on the boundary of a connected compact subset implies f has a zero or is a constant function

Show that a non-constant holomorphic function has zeroes in a compact set


How can I get all subclasses of a class in Java?

How do you find all subclasses of a given class in Java?


Highlight the selected feature with different colors

How to change the color of a selected feature with pyQGIS?


What is the difference between "who packed my chute?" and "who has packed my chute"?


In Haskell, why do I need to put a $ before my do block?

Why there needs to be a $ in calls like "runSomeMonad $ do ..."?


Protected vs Public in terms of Inheritance in Java

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


My machine is not booting properly. How do I troubleshoot?

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


Storage of important documents in Mexico

Storing for 3 weeks, then checking in additional luggage on Mexico airport


Are all transpositions of a finite set conjugate to each other under action by inner automorphisms?

Why are two permutations conjugate iff they have the same cycle structure?


What is PEP8 actually for and why do I have to shorten my lines?

Why does PEP-8 specify a maximum line length of 79 characters?


Proving an inequality involving factorials: $(\frac{n}{2})^n \ge n! \geq (\frac{n}{3})^n$

Factorial Inequality problem $\left(\frac n2\right)^n > n! > \left(\frac n3\right)^n$


Salesforce apex:output link image not downloading

Salesforce apex:commandLink image not downloading


The closed form for the number of 2-element subsets of the power set of a set with fixed overal size

How to prove Vandermonde's Identity: $\sum_{k=0}^{n}\binom{R}{k}\binom{M}{n-k}=\binom{R+M}{n}$?


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


Unable to install anything on Ubuntu server 16.04.3 (openssh for example)

How do I restore the default repositories?


User search data with ranking; what's the reputation for?

What do the numbers on the Users page mean?


How to check the text of an ajax response

How do I return the response from an asynchronous call?


Ubuntu system update from 16.04 to 18.04 issue


Questions on "All Horse are the Same Color" Proof by Complete Induction


Gay and straight are to sexual orientation as transgender and cisgender are to ______?

Is there a name for the category containing the words trans and cis?


Communicating between Controller classes

Multiple controller extensions communication


Adding a comment should not make me fail the review audit


How do I deal with a compromised server?


Why is this true? $(\exists x)(P(x) \Rightarrow (\forall y) P(y))$


No redraw after assigning new vertex position with python


Extract source commands of an existing gnome terminal session?

.bashrc overwritten but still sourced -- how can it be recovered?


How can I clean out duplicate entries from my PATH?

Remove duplicate $PATH entries with awk command


Confused about the answer for "Neither the employees nor the owner (cares/care) about the customer."

What's the error in "Either he or I is right"?


Geometric intuition of the dimension of Grassmannians and flag manfolds


ObjectDisposeException when trying to send thru a reopened socket


Wireless Network Found, can't connect, repeated requests for authentication

Cannot connect with wifi when CLOSE to router


Go to character in Visual Studio 2015 instead of go to line

What do the "+n" values mean at the end of a method name in a stack trace?


tikzpicture is shown in PDF only after the second PDFLatex call

TikZ pictures only show up on second call of pdflatex


Is there a SHA-256 value which hashes to itself?

Cryptographic hash where the hashing function input is similar to the result


When you no longer want a professor on your dissertation committee

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


If the inner product of Ax with x is 0 for all x, then A=0.

Question on equivalence of inner product


Is it possible to get Android 6.0 if you have any Android 5.0 device?

When will my device get the Android 6.0 update (Marshmallow)?


faster way to create variable that aggregates a column by id

Calculate group mean (or other summary stats) and assign to original data


Problems with using Compound microscope and telescope in the place of each other

Compound microscope vs astronomical telescope


Make multiple texts in one paragraph html

How do you make div elements display inline?


How to update my blender without losing all my settings on mac

How would I import/export Blender's preferences?


Create one list of numbers by combining numbers from three lists of uneven length

Get the cartesian product of a series of lists?


What happened to the Azor Ahai prophecy after S08E03?


How to prove ${\sum_{k=0}^r} {{n+k}\choose{k}}={{n+r+1}\choose{r}}$?

How to prove this statement: $\binom{r}{r}+\binom{r+1}{r}+\cdots+\binom{n}{r}=\binom{n+1}{r+1}$


Show $\arctan(x+1) - \arctan(x) = \arctan(\frac{1}{x^2 + x +1})$

Is there a way to write this expression differently: $\arctan 1/(1+n+n^2)$?


How to display multiple attributes in a QGIS Composer legend?

label vector line with multiple attributes in QGIS


Problems in creating JSF project in eclipse

java.lang.IllegalStateException:Could not find backup for factory javax.faces.application.ApplicationFactory


BufferedWriter not writing everything to its output file


How do you get a user's real IP in Javascript?

How to get client's IP address using JavaScript?


How many generators do we need to generate the Rubik's Cube group?

Proof that the Rubik’s Cube group is 2-generated


compass (scss) variables & media queries

Using Sass Variables with CSS3 Media Queries


One of my questions was recently "removed" and I don't know why

How does deleting work? What can cause a post to be deleted, and what does that actually mean? What are the criteria for deletion?


Prove that the sum and product of two positive relatively prime integers are themselves relatively prime.

$\operatorname{gcd}(ab,a+b)=1$ if $a$ and $b$ are relatively prime


The galois group of polynomial ($x^5-3$) over $\mathbb{Q}$

Show Galois group of $f(t) = t^5 - 3$ over $\mathbb Q$ is solvable


Volume shader results different on cpu/gpu

Why do volumetrics render noisier when using GPU then when using CPU in Cycles?


char * , strcat interaction .why doesnt it print anything

Why do I get a segmentation fault when writing to a "char *s" initialized with a string literal, but not "char s[]"?


Without brute force, how can we show that 1729 is the smallest number that can be expressesed as the sum of two cubes in two different ways?

Proof that $1729$ is the smallest taxicab number


Javascript regex throwing syntax error in edge

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


Is it possible for a human to perform vaginal delivery without labor? Is there a name for such practice?

Can a pregnant woman in a coma still be able to give a vaginal birth? Will her body instinctively contract?


Why does gravity decrease as we go down into the Earth?


Is an HP Proliant 350e Gen8 server appropriate for Primevera and Sage applications?

Can you help me with my capacity planning?


Angular + Semantic UI Form Validations not woking

How to apply jquery after AngularJS partial template is loaded


Is there any physical simulator precise to atomic levels and quantum effects?

Does there exist a free good molecule / atom simulation software?


What is the catch with "balance transfer" credit cards?

Why do credit card companies keep advertising balance transfers to those who don't carry a balance?


Strange applications of the Axiom of Choice

Is there a *simple* example of how the axiom of choice can lead to a counterintuitive result?


What is the reason behind why energy must always be conserved, apart from observation?

Why can't energy be created or destroyed?


How to (or request feature to) designate the answer you submit as partial or diverging?

Does Stack Exchange allow for answers which question the validity or stance of the original question?


Product of 4 consecutive integers is a perfect square,what are the possible values of their sum?

Prove that the product of four consecutive positive integers plus one is a perfect square


Who is the most generous user in the network?


Impossible to use virtual keyword on destructor


Provide links to candidate questionnaire answers in elections

Moderator Elections: new questionnaire UI


Looking for an inscribed quadrangle in a rectangle with minimal perimeter

The smallest quadrangle inscribed in a rectangle


How can a web game store points online without giving the user the possibility to do the same call but with more points?

How do I protect sending scores from HTML5 games to my server


Swap two variables value without using third variable in php

Is there a PHP function for swapping the values of two variables?


Is the word “etymology” correct when looking for the origins of a phrase?

Can the term "etymology" be applied to a phrase or only individual words?


What happens to my body when I am "inside" a Pensieve?

What do people who are using a pensieve look like?


Why isn't my Minecraft LAN server working?


Opening up two sockets in java from different instances of an application to the same source

StreamCorruptedException: invalid type code: AC


"Could not load question; loading in browser instead"

Badge notifications do not open on Android app


Integrating $\int_0^\infty \frac{\ln t}{t^2+a^2}\,dt$ with residue theorem.

Calculate Integral using residue theorem


Finding number of positive integers using that $p=2^{24036583} -1$ is a prime number

the number of the positive integer numbers $k$ that makes for the two quadratic equations $ \pm x^2 \pm px \pm k$ rational roots.


"Doing the same thing over and over and expecting different outcomes is the definition of insanity" - ( Albert Einstein,) and quantum mechanics

What is the reason that Quantum Mechanics is random?


Applying curve using ArcGIS API for JavaScript?

Adding curved features to map with ArcGIS API for JavaScript?


Performance problem with rendering 1000 cubes in XNA 4.0

How many (low poly) models can XNA handle?


How do make a redstone signal select a random set of command blocks

How can I make a Random Number Generator with vanilla redstone?


Everything snapping to grid after some accident hotkey. Precise changes available only when I'm holding CTRL

Cursor is set to move by increments. how to reset to normal?


key-mapping - Workaround for keyboard with missing keys (16.04)

How can I persistently remap keys in Ubuntu 16.04?


If T And T' be two Topology on a same set X and T is strictly finer than T' then "there exit no homeomorphism between them",is a correct statement?

Produce two distinct topologies of R such that the first is strictly finer than the second but the two are homeomorphic to each other.


Prove that $A \Delta (B \Delta C) = (A \Delta B) \Delta C$.

Associativity of symmetric difference of sets


What happens when I can prepare more spells than I have slots to cast them with?


Let $z_1,z_2,z_3 \in \mathbb{C}$ with $z_i=1$ for $i=1,2,3$ and $z_1+z_2+z_3$. Show that $z_i$ are vertices for a equilateral triangle.

showing certain vertices form an equilateral triangle


In a specific construction of the sentence below, which one should be use: he or him?

In search of a Grammar text, of any vintage, that covers such as the below


Google Maps API stopped working by itself

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


chmod has no effect on files on flash drive

How do I change permissions on a FAT32 formatted drive?


Can Rails ActiveRecord #save method be used to update an existing record?

how does activerecord know to perform an insert or update?


If loop code not executing when the statement is true in java


How do you pluralize the first letter of acronym?

Is the term PoWs (POWs) inconsistent with typical acronym pluralization?


android: what is the difference between focused, enabled, pressed, and selected states?


I want to calculate the limit of $\lim_{x \to +\infty} (\sqrt{(x+a)(x+b)}-x)$

Values of the limit $\lim\limits_{x\to+\infty}\left(\sqrt{(x+a)(x+b)}-x\right)$


Question regarding two independent Poisson processess

Two independent Poisson process question


ubuntu 14.04 / 64 bit stucks while using it


How do I screenshot on my RCA Andriod 4.4.2 10" tablet?

How to take a screenshot with an Android device?


Can't fill an array with data from the strings.xml file


Can do an "apt-get update" but for only for one package?

apt-get update only for a specific repository