How can I determine which hash function I should use?


How to center vertically and horizontally text in a div element


Is it true that any quotient group G/N is abelian if N contains the commutator subgroup?


Cross-thread operation not valid error when i get string from other Task

Cross-thread operation not valid: Control accessed from a thread other than the thread it was created on


How can I retain HTML form field values in JSP after submitting form to Servlet?


Cannot rename bluetooth device on my mac


How can I convert a live USB to Linux on USB on 18.04?

Can Ubuntu be installed to the pendrive it was booted from?


cd command to navigate to external hard disk which is already mounted

How do I navigate to folders with spaces in their names? I get "no such file or directory" when I try


Is there a constructive way to exhibit a basis for $\mathbb{R}^\mathbb{N}$?


Why does my image have space underneath?


How do you print a complex/imaginary number in C?


How to get the post ID's of the five most recent posts

How to exclude latest x posts from a paginated query?


Splitting pieces of a mesh into a new object


Add support for SASS/SCSS syntax highlighting

What is syntax highlighting and how does it work?


If A is a $m\times n$ matrix, and $\text{rank}(A)=1$, then $A^2 =\lambda A$

Matrix of rank 1; show that $A^2=cA$ for some scalar $c$.


Why won't my YN-568EXII work with a flash trigger?

Why does the YN-565EX need a radio trigger with the YN-560-TX?


GetElementbyID and Innerhtml not working

Why does jQuery or a DOM method such as getElementById not find the element?


A post that doesn't exist is shown on the "Top network posts" section on this user profile on English Language & Usage Stack Exchange

Strange nonexistent link in a specific user's Top Network Posts


How can you separate sub atomic particles and manipulate them?

How are the protons for collisions in the LHC made?


Python-3 socket returns IP address as 127.0.1.1 instead of my local IP address

Finding local IP addresses using Python's stdlib


Creating multicolored meshed plots (connected scatter plots) using ListPlot


How do I create a deb package for a single python script?


security camera power by solar regulator

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


Email app download badges should be modernized

Remove Stack Exchange mobile app download buttons from emails


How do I get my p value from my F test in Stata

My F statistic is really high - what does this mean?


Querying the Monero blockchain via JSON-RPC

curl in Mathematica, google link-shortener


Colouring and shading/texture of bars according to grouping ggplot2

How to add texture to fill colors in ggplot2


How to generate a random number between 0 and a user-defined integer in C/C++?


I told Serana to wait, but can't find her anymore

How do I find my follower if and when they leave me?


Android EditText to int conversation error

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


Proving the Fibonacci identity $\sum_{i=1}^n f_i^2=f_nf_{n+1}$ by induction

For the Fibonacci numbers, show for all $n$: $F_1^2+F_2^2+\dots+F_n^2=F_nF_{n+1}$


What folder are Google Podcasts downloads stored in?


Why does it seem like my floating point value is not equal to itself?


Making the subscript under the summation

Sums in math mode: how to display index under the sigma sign?


$\sqrt{c+\sqrt{c+\sqrt{c+\cdots}}}$, or the limit of the sequence $x_{n+1} = \sqrt{c+x_n}$


Does using the Console Commands negatively affect me?


How do you store a character in a list of linked lists in C


Prove that co finite set over N is countable

Show that the set of all finite subsets of $\mathbb{N}$ is countable.


How do I merge (or zip) two IEnumerables together?


Missing return statement error in method

"Missing return statement" within if / for / while


How to delete article type in a managed package development org?

How to alter package to support Lightning Knowledge and Classic Knowledge both?


Term for when inventory is discovered to be missing


How do I get the dragon fruit achievement in Jetpack Joyride?


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


Can I changed camera flash brightness level?

Is there a way to adjust the torch/flash brightness level on an iOS device?


Is it possible to convert this if/else if to switch statements?

How do I select a range of values in a switch statement?


Warp drive small scale experiments "proof of concept"


$R$ semisimple artinian ring $\Rightarrow\varphi(R)$ is such


Interpretation of level-log when the outcome is binary

interpreting level-log model that has a percentage variable


How can I prevent Latex from doing something "bad" to my computer?


$f^2$ and $f^3$ are holomorphic implies $f$ is holomorphic.


Can Tikz's "double" style be applied to arrow heads?


How is the Net Run Rate calculated in ICC World Twenty 20 events?


Insert in struts2 error as NullPointerException

Nullpointerexception while setting a bean


Make a div fill the height of the remaining screen space


The generating function of the Fibonacci sequence as a rational function

The generating function for the Fibonacci numbers


Don't offer the "edit" option for comments after the 5 minute window in the android app


How can a truly elementary particle decay into other particles?

Why do physicists think that the electron is an elementary particle?


How to run code when a class is subclassed?


How to apply css attribute defined by js variable

Setting background-image using jQuery CSS property


Which are safe and unsafe regions in Iran?


Show that $X^3+X^2+1$ has only one real root

cubic equations which have exactly one real root


Recovering Original Win8 to Toshiba Satellite c850 after formatting hard disk

Retrieve Windows 8 Product Key from mainboard


Exact dates of stages before launch of a website

How to determine the date a Stack Exchange site graduated from Area 51?


How to factor intricate polynomial $ ab^3 - a^3b + a^3c -ac^3 +bc^3 - b^3c $


Computing class group of $\mathbb Q(\sqrt{6})$


Why didn’t I get an election notification in iOS app?

Show all inbox items (notifications) in app


Is there a correct gender-neutral singular pronoun ("his" vs. "her" vs. "their")?


What is the maximum possible frequency and wavelength?


proof that if $AB=BA$ matrix $A$ must be $\lambda E$

A linear operator commuting with all such operators is a scalar multiple of the identity.


The function $f (n) = (1 + 1 / n) ^ {n+1}$ is decreasing


how to return jquery ajax success result

How do I return the response from an asynchronous call?


switching keys and values in a dictionary in python


How do you adjust the background-image size with CSS?


Every subsequence of $x_n$ has a further subsequence which converges to $x$. Then the sequence $x_n$ converges to $x$.


Has really general relativity only two degrees of freedom (as in the Maxwell theory)?

Counting degrees of freedom for gravitational waves as a gauge field


c# xml:get all atributes from file,but have add additional elements


Start Day and End Day Of Current Month & Start Day & End Day of Current Year

The first day of the current month in php using date_modify as DateTime object


Segfault when creating an array larger than 100000

Getting a stack overflow exception when declaring a large array


Does my multiclassed Eldritch Knight fighter/War wizard now have to prepare his spells as an Eldritch Knight?

Arcane Trickster Multiclass - Spell Preparation


Motion Tracking. Why is my solve error so high?

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


Custom fonts in IOS showing on simulator but not on device

Can I embed a custom font in an iPhone application?


In a ring, $1-ab$ is invertible $\implies$ $1-ba$ is invertible (from scratch)


Captain Sisay and flip legendarys from Kamigawa?

What are the characteristics of a flip card in my library?


What is the difference between AUTO & COMMIT FlushModes?


HTML favicon won't show on google chrome


Run an application as a domain user from VPN

Use runas with a domain account on a non-domain machine in Windows 2k/XP/Vista/7


bash: set the value from log as a variable

Perform floating point arithmetic in shell script variable definitions


How did Iron Man subdue The Hulk in Avengers: Age of Ultron?


WiFi driver not working in 20.04 LTS. When I try to install bcmwl-kernel-source it gives error

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


Why does the definition of the Euler's number not violate the rule against division by zero?


Why didn't Harry's touch hurt Voldemort in "HP and the Deathly Hallows"?

Why was Dumbledore worried by the cut in Harry's arm?


String replacement with Perl without assigning a variable

How do I perform a Perl substitution on a string while keeping the original?


How does XP bonus from Ruby socketed on helms interact with XP bonus from Torment level?

How does "Increases bonus experience" on items work?


How do I determine the size of my array in C?


Is it possible that all parameters are highly significant?

Why is "statistically significant" not enough?


How can I find the last digit of $17^{68}$ and the last both digits of $14^{200}$?

Modular exponentiation by hand ($a^b\bmod c$)


Unit Test Loop gets executed more than once

Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a loop


Is there any way to access registry of a Windows back up?

How to modify a computer's offline registry from WINPE?


Why do positive and negative variants of the same question elicit the same answer?


What do I need to read Microsoft Access databases using Python?


Alternative of "??" for non nullable types (e.g. when looking up dictionary keys)

Is there an IDictionary implementation that, on missing key, returns the default value instead of throwing?


Elementary Number Theory: If $p$ and $a$ are natural numbers with prime $p$, and $p^4|a^3$, then $p^2|a$.

Prove or disprove: If $a \in \mathbb{Z}$, $a > 0$, and $p$ is a prime such that $p^4 \mid a^3$, then $p^2 \mid a$.


Python time.sleep every regular time intervals and function

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


Limit of the series $\sum_{n=1}^{\infty}{\frac{n}{2^n}}$

How can I evaluate $\sum_{n=0}^\infty(n+1)x^n$?


Format date as the first/last day of the month

In PHP, is there an easy way to get the first and last date of a month?


What are the game playing impacts of allowing players to take turns out of initiative order?

"Delay Action" instead of "Ready Action"


Changing a row's color depending on the value ( TEXT ) of a cell

How can I change a cell's background color based on the cell's current value?


Do people “go half/halves” on something?


Why should a flag be declined if it was correct at the time?

Is it fair to penalize those who flag when their flag was accurate at the time of submission?


How can I run Minecraft 1.6.4 on 1.7.2 client?

How do I downgrade Minecraft to play on a server running an older version?


Squaring the plane with consecutive integer squares. And a related arrangement.

Squaring the plane, with consecutive integer squares. And a related arrangement


Where is the Default Program associations stored in the registry?

Where in the registry does Windows store with which program to open certain file types?


Copy the property values to another object with C#


sed replaces string by line break but not the other way around

How can I replace a newline (\n) using sed?


nodejs - mongodb - how to find all where a != b?


Microsoft 10. Need updated post on how to delete/disable Microsoft edge

How to disable or uninstall Microsoft Edge in Windows 10


Out[x] not the same as assigned expression


How do I get my Xbox360 controller to work in Ubuntu 12.10?

How do I get an XBOX 360 controller working?


No matter what I do, Origin is not allowed by Access-Control-Allow-Origin.

Cross-Origin Request Headers(CORS) with PHP headers


Distribution where mean and mean of reciprocal are both 1

Constructing example showing $\mathbb{E}(X^{-1})=(\mathbb{E}(X))^{-1}$


How can I change directories in the terminal?

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


Possibility of attaching non-spatial files to features in QGIS

How to add links to PDFs in a Shapefile?


I can't find any plantera bulbs in terraria even though im on hardmode


How to re-add click listener after dynamically changing innerHTML?

Event binding on dynamically created elements?


Which site is best to ask a question about web proxies?

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


How I can send bug report if Lubuntu doesn't start?


How come Snape and Lily have the same patronus?

If it wasn't for his love for Lily, would Snape have a Patronus?


Expectation $\infty$ but existence of $\mu$ weak convergence


Replace figures by Figure placeholder and move all of them to bottom in LaTeX

Error when using endfloat with unicode characters


Do physicists talk about instants and infinitely small moments in time?


cannot install and update pi-hole in ubuntu

E: Problem executing scripts APT Update::Post-Invoke-Success error during apt-get update


Update a question or post a new question?

What to do when your question has an old, stale, unanswered duplicate?


PHP html characters coming in as question marks


"Jump to case label" error when using vectors inside switch statement.

Why can't variables be declared in a switch statement?


Null pointer in customelist ListView in fragment

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


How to redefine the section counter in amsart?

Continuous v. per-chapter/section numbering of figures, tables, and other document elements


JavaScript regex to match any of several terms

Regular Expressions: Is there an AND operator?


'int' object is not iterable while using "list.extend"

What is the difference between Python's list methods append and extend?


How to eliminate external lib/third party warnings in GCC

How to suppress GCC warnings from library headers?


Is it a fixed order that all global variables are initialized prior to main()?


Viewing the exact timestamp of a question on Stack Exchange

How do I tell exactly what time an answer was posted?


Troubleshooting ERROR 000989 Python syntax error from ArcGIS Field Calculator?


Destructive interference and energy conservation


I am flying Mexico-Frankfurt but I connect flights in Houston, do I need a special permit if I already have a visa

I have a U.S. tourist visa (B1/B2), is that enough to transit via U.S. airports?


Why is the axiom of choice controversial?

Why is the axiom of choice separated from the other axioms?


Is there a specific symbol for $\mathbb{N}\cup\lbrace 0\rbrace$?

The best symbol for non-negative integers?


If you're calling a method on an array, should that method be static?

What does the 'static' keyword do in a class?


How can changing the order of integration be used to solve the integral $\int_0^\infty \frac{\cos{(\alpha x)}-\cos{(\beta x)}}{x}\, dx$

Suppose $ \alpha, \beta>0 $. Compute: $ \int_{0}^{\infty}\frac{\cos (\alpha x)-\cos (\beta x)}{x}dx $


How to get Wi Fi and Cell Network Signal Strength

How to get the connection strength of Wifi access points?


How can a singularity have infinite density?

Why does a black hole have a finite mass?


I uninstalled Python without realizing it's really important. What should I do?

Ubuntu system is broken after accidentally uninstalling many packages


How to compute $k$'th roots $\!\bmod n$?


Windows 10 not an option for GRUB Boot Menu

Unable to boot into Windows after installing Ubuntu, how to fix?


List.contains() not returning correct result, but manual search does

Overriding the java equals() method - not working?


How to read/write a text file in javascript?

How to read and write into file using JavaScript?


How much space should I set aside for bootloader and how much swap space?

How much swap should I take for 1GB to 8TB of RAM on 14.04 or higher?


Summoning a villager with specific (Non-Custom) trades

How do I create a villager with custom trade offers?


How to read in 3 numbers with no spaces into an array

How to use java.util.Scanner to correctly read user input from System.in and act on it?


Export structure and data without a wizard

SQL Server 2012: Generate Scripts from command line


Saving hyperref when inserting pdf in LaTeX

How to preserve hyperlinks in included PDF?


How to execute a JavaScript function when I have its name as a string


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


std map - what to use instead of [] if I know that element doesn't exist?

rewrite access to collection to avoid "double" finding


what makes differences between defining variable globally and under 'def;


How can I remove these packages with unmet dependencies when I get dpkg error "trying to overwrite... which is also in..."?

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


Which fold will be chosen after applying k-fold cross validation?

How to choose a predictive model after k-fold cross-validation?


Clarification about a bounty assignement?


Unnecessary backslash characters added when hyperlinking code block with brackets `[]`

Hyperlink for square brackets inside inline code


Why can't I find skypeforlinux in some apt-cache search?


Extract the value using regular expression in jmeter

What special characters must be escaped in regular expressions?


Are there limitations on what spells a creature can cast while holding a readied spell?

Can you cast bonus action and reaction spells while already casting a spell with a casting time longer than a turn?


Is or are usage in a particular sentence

A number of questions "has been" or "have been" asked?


Shortest comprehensive sentence in English


Existence of $f(x)=-x$ for null homotopic maps on $S^n$.

Map $f: S^n \to S^n$ that extends over $D^{n+1}$ must identify a pair of antipodal points


Python modifies newlines when writing a file

How to write Unix end of line characters in Windows?


What is a proper transaction from nested rules to nested associations?

Converting hierarchies of rules to associations


Adding uncertainties when you cannot make any assumptions about the measurements


Carrying forward an RRSP over contribution to balance the account when the new contribution room becomes effective

Can I withdraw money from my rrsp if I made excess contribution by mistake?


In what order are replacement effects chosen with respect to damage prevention?


How to use manual partitioning during installation?


Understanding domain registration and dns lookup

How do registrars register authoritative name servers with root name servers?


Is there a central site for accessing physics data for research?

Is there a standard resource that lists all understood particle-particle relationships?


An example of a bounded pseudo Cauchy sequence that diverges?

Boundedness and Cauchy Sequence: Is a bounded sequence such that $\lim(a_{n+1}-a_n)=0$ necessarily Cauchy?


How to set the value of a HTML file field?

How to set a value to a file input in HTML?


The close dialog says there are two off-topic votes, but none of the off-topic reasons have votes next to them


How can I mount a removable device as un-ejectable

How do I not accidentally eject external drives?


How many times do I need to collect sets of Steam Trading cards?

How many levels are there for Steam Trading Card badges?


Preventing people from saving PDFs or adding a download date

Prevent PDF file from downloading and printing


Is "she don't" sometimes considered correct form?


How to get rid of empty blocks on the dashboard?


How do I make planet move slower the further away they are?

How can I accurately simulate orbits in Unity?


How to show the number of nodes and comments?


Please look into this inexplicable behavior and output of memcpy() for overlapping memory blocks


Can I feed a bash script a local file into $1 and have it echo the file's absolute path?

How can you quickly get the complete path to a file for use in terminal?


Understanding "we lose degrees of freedom in product deviations"?

Why shouldn't the denominator of the covariance estimator be n-2 rather than n-1?


Exception in thread main java.lang.ArrayIndexOutOfBoundsException

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


Could I play online using one membership on two different consoles?

Can two PS4s log in to the same PSN account?


\section*[toc]{normal section title} not working for me

Is there a way to show the short title of a chapter in the TOC instead of the long?


How to stop irrelevant job suggestions from carreers 2.0?

I am getting ads for irrelevant jobs from careers 2.0 on right panel of Stack Overflow


Integrate $\int \frac{dx}{\sqrt{-ax^2 + bx +c}} $


Does anyone know the word for a question asked with the intent to injure or insult?

Word to describe using sarcasm or a similar approach to lead someone to recognise their own mistake


Why frequency does not change when light passes through the denser medium?

What determines color -- wavelength or frequency?


Toilet in spare bath runs automatically for 2 seconds about every 20 min!

Toilet does full-blast, one-second refill every hour or so


modified 3SUM algorithm doesn't work well with floating point


Which Harry Potter works are considered canon?


How to test that Apex Batch finish() sends an email?


How do i start the rigid body dynamic in the keyframe i want?

Activate Rigid Body Physics at certain time?


Can I still travel back to Canada by using the new passport with no document and the old passport with valid visa and study permit?

Can I travel to Canada with valid visa on old/expired passport?


nginx suspicious symbols warning in my nginx config file


QGIS atlas: make only current polygon visible

How to generate multiple maps where one highlighted attribute changes?


Unable to change specific faces color of a cube

Add different materials to different parts of a mesh?


How can I open .CR2 files from a Canon 750D in Lightroom 3 when I can't afford the monthly cost of the new Lightroom?

Why don't Lightroom or PSE recognize CR2 files from my Canon 7D mk II even though they are up to date?


What is difference between `` and $() for command-substitution in bash scripting?

What's the difference between $(stuff) and `stuff`?


I am learning "Function callback" and there is a segmentation fault occuring in my code?

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


QM: Why does the creation operator not have eigenstates?

Is there a simple way of finding the eigenstates of the creation and annihilation operator in QM?


Belgian Visa on hold. What does this mean?


Doubt in the sufficient statistic for the Location Family

Minimal Sufficient Statistic for location family


Launch Velocity for Simple 3D Projectile

Calculating minimum velocity of the projectile needed to hit target in parabolic arc


pgfplots: add margin 'whisker' to barchart


Code works on when I input value as 50 and not when I provide value for suncondition


Is it possible to integrate c++ code in php

Is it possible to use C++ binaries from php


Prove $(a_1+b_1)^{1/n}\cdots(a_n+b_n)^{1/n}\ge \left(a_1\cdots a_n\right)^{1/n}+\left(b_1\cdots b_n\right)^{1/n}$


How do I configure update settings that I would do from the GUI in the terminal?


Java: Sorting a Map by the value, when value is an arraylist


Is this circuit a viable implementation?


Why does time seem to flow in only one direction?

What is time, does it flow, and if so what defines its direction?


Can't do SSH public key login under encrypted home


Lambda variable capture in loop - what happens here?


How to achieve this coffee powder photo effect?

How can I create a coffee cream effect with Photoshop?


:How to install a package behind an overly restricted firewall

Install programs without an internet connection on Debian


This keyword doesn't seem to work like it should

Referencing "this" inside setInterval/setTimeout within object prototype methods


I beat the game. It reset my progress. What gives?

What is point of no return in The witness?


how to make div center horizontally with fixed position?

CSS horizontal centering of a fixed div?


Objective-C:  @class Directive before @interface?


USB enclosure shows one physical drive as two drives

Is there a size limit on external USB hard drives?


Finding a closed formula for $1\cdot2\cdot3\cdots k +\dots + n(n+1)(n+2)\cdots(k+n-1)$


How to represent bibliography using bib file


Prove the inequality $\frac{a}{c+a-b}+\frac{b}{a+b-c}+\frac{c}{b+c-a}\ge{3}$

Let $a$, $b$ and $c$ be the three sides of a triangle. Show that $\frac{a}{b+c-a}+\frac{b}{c+a-b} + \frac{c}{a+b-c}\geqslant3$.


java.sql.SQLException: Column count doesn't match value count at row 1 Servlets Error or Mysql Error?


Junit test cases running some test cases parallel and some sequentially

Running junit tests in parallel in a Maven build?


Let 𝑎,𝑏,𝑚 and 𝑛 be natural numbers , 𝑎>1, and suppose that 𝑎,𝑏 have no common factor. Prove that $(𝑎^𝑛 + 𝑏^𝑛)|(𝑎^𝑚+𝑏^𝑚)\implies 𝑛|𝑚 $

$a,b,m,n$ be positive integers such that g.c.d.$(a,b)=1$ and $a^m+b^m|a^n+b^n$ , then $m|n$?


Flying with domestic with ID that expires on the trip

Can a person in the USA fly with an expired driving license?


Arrays reference to each other (Why does the output look like that??!!!)

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


Can anyone please explain why output of the following is such?


How can I remove duplicates from an array list using two methods?


Vertically center two elements within a div

Flexbox: center horizontally and vertically


Unexpected behaviour with WordSeparators and Read


SEO preference: does a site with WWW rank better than without WWW?


Execute fstrim weekly with a user-set crontab

Where can the last FSTrim be seen as successful or not? (log files)


How can doing row operations help us gain information about the columns?

Why do elementary row operations preserve linear dependence between matrix columns?


Really new to Python, just wondering what I did wrong here

How to test multiple variables against a single value?


Are free electrons in a metal really free


How can I automate "I am Groot" reply to annoying friend's texts?


Prove that the identity map is continuous

Proving the identity functions is continuous iff $\tau_1\supseteq\tau_2$


Can we show how many meta reviews there are?


Why can't the C# constructor infer type?


NullPointerException with read properties file in java

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


Git commit a directory while not in the git path

How do I get information about a git repo using absolute paths


Show linearity using additivity and continuity at zero

Overview of basic facts about Cauchy functional equation


Regular expression for letters, numbers and - _


How to reproduce the gdal utility programs in Java by GDAL Java bindings


History of the non-rule that proscribes ending a sentence with a preposition

When is it appropriate to end a sentence in a preposition?


how to build blender controller and pickers


Printing just one group with printnomenclature?

How to achieve nomenclature entries like: symbol, Description, Dimension and unit, etc?


Deserialized object instance without class definition


en_US or en-US, which one should you use?

What is the difference between creating a locale for en-US and en_US?


How do I prevent changes to my PostgreSQL database?

How to avoid modifications during pg_dumpall


Properties Menu for Custom Lightning Components

How do I create/expose properties that will be passed to my component from the Lightning App Builder


What WPA projects took place in Boston, Massachusetts Metropolitian area?

What WPA projects took place in my (or my relatives') hometown?


What is the right approach in Storing content images in TFS or share folder for usage in multiple websites?

How to handle shared projects in team foundation server source control structure


Rounded UIView using CALayers - only some corners - How?


Why does the wave-particle duality become unnoticeable with more mass?

Validity of naively computing the de Broglie wavelength of a macroscopic object


Are we "allowed" to edit Community Wiki answers?


Automatically allow user1 in group1 to edit file with owner user2 and group user2

I added a user to a group, but group permissions on files still have no effect


Can I get back into the US with an expired US passport and a valid UK passport?

Emergency flight to Madrid in 3 days & US Passport just expired


Prove that the nonhomogeneous Neumann problem has a solution only if $\int_Ωf = 0$.

Weak solutions to the Neumann's problem (Evans PDE)


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


Intuition Behind the Elastic Net Penalty


git: error: you need to resolve your current index first

I ran into a merge conflict. How can I abort the merge?


Show that $\left|\frac{\alpha - \beta}{1-\bar{\alpha}\beta}\right| < 1$ when $|\alpha|,|\beta| < 1$


Effective refractive index and refractive index


Why the character is corrupted when use request.getParameter() in java?

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


Where is the cost for adamantine and cold forged iron weapons?

How can one obtain an adamantine weapon?


Can we leave the Dubai airport during a long layover; do we need a visa?

Do I need a transit visa for a layover in the United Arab Emirates?


Error while trying to remove a ppa (with ppa-purge) which itself throws an error


Evaluating $\int_{0}^{1}\frac{x-1}{(x+1)\ln x} dx $


Is there a way to change so that Alt + tab will work similar to windows?

Unity: How do I revert Alt-tab behavior to switch between windows on the current workspace?


python check for ip address for connected router

Finding local IP addresses using Python's stdlib


Java Check if a new date range falls/crossovers between other date ranges

Determine Whether Two Date Ranges Overlap


When to use “that” and when to use “which”, especially in relative clauses


amazon web service requirements for linux and windows mssql

Can you help me with my capacity planning?


"More than one person a day is/are killed"

"There is/are more than one". What's the difference?


Prove that $\gcd(a^n - 1, a^m - 1) = a^{\gcd(n, m)} - 1$


Why does the "Unanswered Questions" tab show questions that have answers?


ubuntu is not opening only blinking line on booting

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


Make clickable cell in dynamic table with JQuery

Event binding on dynamically created elements?


Embedding a finite group into $\operatorname{GL}_n( \mathbb{Z})$

Embeddings of finite groups into $\mathrm{GL}_n(\mathbb{Z})$


save programdata at computer shutdown in java

Java: Handle logoff or shutdown on Windows and Linux


PHP How to find the time elapsed since a date time?


Is there a max array length limit in C++?


Why does an IP address range scan not scan the 255 address by default?

Why can't IP addresses start with 0 or 255?


Statistical inference when the sample "is" the population


can ordinal variables be used as predictor for linear multiple regression analysis?


Which is the main differences between sharepoint apps?

Differences between hosting options for SharePoint apps


Non-ASCII printable characters in sshd banner


two conditions in one sentence using would


Find polynomials $m,n \in \mathbb{F}_5[X]$ such that $mf + ng = h$.

Greatest common divisor of polynomials over $\mathbb{Q}$


How to prove that $4\sum_{n=1}^{\infty}\frac{1-\cos(n\pi)}{n\sinh(n\pi)}=\ln2$?


How to store the nonzero elements of a sparse array in a file?

How do I save a variable or function definition to a file?


DualBoot: Separate partition for user's important data?


Can Ice Knife hit a target under the effect of Mirror Image and destroy its illusions?

Does Mirror Image affect spells that have no attack roll?


Having trouble with getting bat file to work, does anyone know what is wrong with this bat file

How do I get current date/time on the Windows command line in a suitable format for usage in a file/folder name?


Which Disney Princesses did not make the cut?


Activation value at output neuron equals 1, and the network doesn't learn anything

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


The sequences $a_n = \sqrt[n]{4^nn}$ is converge or diverge? Find the limit of each convergent sequence.

Proof of $\lim_{n\to \infty} \sqrt[n]{n}=1$


plain text can be enctypted like password in vi editor?

Encrypting/Decrypting a single file in Ubuntu 12.04 LTS


Are the rules regarding absolute modifiers too absolute?


How to format spacing between reference key and reference text in Bibtex?

Bibliography - Increase horizontal white space after each entry


Loss function increases over training epochs


How do I set up SIP voice calling in Empathy?


C++ Polymorphism: from parent class to child

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


if $2$ hyperbola are conjugates of each other then value of $c$


Slicing list of list in python, jumping one item


How do I move bones from one armature to another armature in the outliner?


How to pass field values to apex class by command button?

Accessing the Id parameter in VF page passing it to Javascript function


Removing the dependency on training set size in L2 regularization in neural networks

Should we average weight decay loss in neural network?


Where is the mass and gravitational influence of dark matter?

Why doesn't dark matter affect planetary motion?


How to merge google chrome user of home and work

Is there a way to create synchronization profiles for Google Chrome?


I am In sudo group. Yet I can not do sudo commands

How do I add myself back as a sudo user?


Resistors, what do I need for my 3V LEDS?

What resistor is needed to regulate the current through 2 3V LEDs in series with a 9V battery?


Explain the difference between standard and user defined libraries?

What is the difference between #include  and #include "filename"?


I flagged a post but don't have citizen patrol badge?

Why haven't I received a tag badge and the Citizen Patrol badge?


Solve recurrence relation $a(n)=2\cdot a(n-1)+5\cdot a(n-2)+6\cdot a(n-3)$ and the associated cubic

Is there a systematic way of solving cubic equations?


Is there a better way to echo without a newline in bash than using tr -d?


D3 Multiple Visualizations Per Page Namespace IRI Conflicts

Mozilla(Firefox) , Marker , Multiple SVGs


Using sieve filter in ERDAS Imagine and/or ArcGIS for Desktop?


Should editing same post twice given twice reputation points?

Giving edit reputation bonus for same user for same post multiple times


How can my php website handle www.mywebsite.com/customer_name requests?

htaccess rewrite url from different pages


How can I travel to America from Australia with my dog in the cabin or else be with him in cargo?

Is it possible to accompany a live animal (dog) during air travel (cargo)?


Decrypt authenticated cipher while still encrypting

Real time video stream AES encryption with authentication


Where are fsck results logged at boot time, after /forcefsck?


Evaluating an integral involving a product of exponential sines

How to show that $\int_{0}^{\infty}{\sin(x)\sin(2x)\sin(4x)\cdots\sin(2^kx)\over x^{k+1}}\mathrm dx=2^{0.5(k^2-k-2)}\pi?$


Can I use main hand shield and longsword in off hand and benefit from dual wielder?

Does wielding a shield as an improvised weapon count for Dual Wielder and Two-Weapon fighting style?


After upgrading to 12.10 usb drives fail to mount

Can't open a separate usbdrive when booting from a liveusb install 12.10


Points/Circles in graph with TikZ based on table within .tex-file?

Drawing different tikz shapes parameterized by data from a file


Factor $1/2$ in work done by spring force


How do per-site Metas differ from Meta Stack Exchange, and where should I go to ask my question?


The choice between the gerund and the infinitive in a certain construction


Is there anything wrong including this png?

Which graphics formats can be included in documents processed by latex or pdflatex?


LinkedList indexOf method implementation


Not getting correct answers for sum of two double value


Terminal Command for Uninstalling Programs


Finding the generating pattern in an integer sequence

How to identify the pattern of a sequence


Why did Ubuntu skip letters in the 1st four release names for Ubuntu?

Why isnt there an Ubuntu release name starting with C (and A)


Logical/Etymological reason for unique conjugation of third person singular present tense


Why all motherboards have the limit for how much memory can be installed?

What limits a motherboard from supporting more memory?


Time evolution of a wave packet from the time-independent Schroedinger equation

Complex valued 2+1D PDE Schrödinger equation, numerical method for `NDSolve`?


Problem 8 (a) in Exercises after Sec. 18 in Munkres' Topology, 2nd ed.: How to show this set is closed?

Given a pair of continuous functions from a topological space to an ordered set, how to prove that this set is closed?


How do I integrate the following? $\int{\frac{(1+x^{2})\mathrm dx}{(1-x^{2})\sqrt{1+x^{4}}}}$


Solutions $(x, y),\;x,y\in \mathbb Z$ to the equation $x! +1 = y^2$


Can I remind a professor that I submitted a "good" essay in her class? (LOR request)

How should I phrase an important question that I need to ask a professor?


how to fix printing issue when splitting data from a text file

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


Why does CNAME for a root domain conflict with most other records?

Why can't a CNAME record be used at the apex (aka root) of a domain?


How do I synchronize appending writes in shell scripts?

How to use flock and file descriptors to lock a file and write to the locked file?


Are the Book of Shadow or Genie's Vessel granted by Warlock features considered as magic items?

How do you distinguish between magic effects that bypass immunity and those that don't?


How to Cancel or Prevent Windows 10 from rebooting my PC?

How to *disable* automatic reboots in Windows 10?


What should be used 'related to' or 'related with' [cell programming]?

When do you use "relate to" versus "relate with"?


Using of word "just" with present perfect- "your friends have arrived" Vs "you friends have just arrived."


Still vulnerable to Heartbleed after updating and reboot

My server is still vulnerable to heartbleed even after I update OpenSSL


iOS: How to store username/password within an app?


Null pointer exception while generating vcf file for the contacts

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


xdvipdfmx:fatal: Unable to open "xxx.pdf"

Error occurs when I rerun a tex file without closing the pdf file


asp.net MVC: binary deployment of mvc views

Using VirtualPathProvider to load ASP.NET MVC views from DLLs


Footer goes on top and I want it at the bottom

How do you get the footer to stay at the bottom of a Web page?


Do you use the word "please" on your website?


jQuery .on('click') events not firing after the DOM has been restructured

Event binding on dynamically created elements?


How to migrate code from SVN to GIT without losing commits history?

How do I migrate an SVN repository with history to a new Git repository?


Is there a way to include motion path in render?

Is it possible to create a path from an existing object animation?


Understanding strange Java hash function


Using linq to retrieve differences between two lists with duplicates

Comparing two Lists and returning the distinct values and the differences


hillshade and slopeshade geotiffs fail to convert to new projection using gdalwarp


Temperature of room for open door of refrigerator


Error: JNI ERROR (app bug): accessed stale global reference


Right identity and Right inverse implies a group


How do I add a user to the "Authenticate" menu?

Setting an admin user via the GUI - command line equivalent?


Wordpress; installed lamp, have localhost, but no login


Invoking JavaScript code in an iframe from the parent page


How to simulate polyhedral dice in Minecraft?

How can I randomise the output of a redstone circuit?


Sugar daddy scammer threatening with police


how to print 20 random number between 5 and 25 in java?

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


How do I get Lightroom 4 to respect custom shooting profile on 5d Mk II?

How do I start with in-camera JPEG settings in Lightroom?


unable to remove old kernel in Ubuntu 18.04

How do I remove old kernel versions to clean up the boot menu?


Compile time safety of derived classes virtual functions?


How many maximum CPUs does Ubuntu support by default?


Turned off webapps, now can't relaunch because it requires webapps

Unity Tweak tool fails to start with the error "com.canonical.unity.webapps schema is missing"


It should be possible to retag a question without bumping it to the front page


if $f$ is continuous on $\mathbb{R}$ and $f(r)=0,r \in \mathbb{Q}$, then $f(x)=0,x \in \mathbb{R}$


w: possible missing firmware /lib/firmware/rtl_nic/rtl8125a-3.fw for module r8169


How do I install Ubuntu 14.04.02 alongside Windows 8.1?

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


How can we actually prove that photon is its own antiparticle?


Find a Four-element Abelian Subgroup of $S_5$


How to get WordPress' hooks/actions run sequence?


Making family chart with everyone in it?

Displaying exponentially growing family tree in practical way?


How does `(sum & operand) === operand` work in the following code? (Bitwise And)


How can I bump other users' unanswered questions?

As a new user without much rep, what should I do if someone else has already asked a question I have, but it has no answers?


Are photon rest frames distinguishable from other inertial frames?

Does a photon in vacuum have a rest frame?


How to expand a drive partition using unallocated space?


Tension in a string in equilibrium (Y&F University Physics section 4.5)

Why I think tension should be twice the force in a tug of war


Path finding algorithm for (x,y) coordinates in c++


How do I connect to another player's world in Minecraft Pocket Edition 11.1?

How do I get on a Minecraft PE server when it says 'invalid name'?


Why do $\exists x\in S: p(x)$ and $\forall x\in S: p(x)$ have different logical structures?

Is $\exists x \in A ~:~ P(x)$ the same as $\exists x ~:~ x \in A \implies P(x)$


How to make the space under footnotes disappear?


Ubuntu / iptables: Using a server as middle-man to talk to firewalled server

How to do the port forwarding from one ip to another ip in same network?


A proof of a criterion of vanishing of a function.


Remove and Disable Win 10 PIN for Work/School Account


Is “Sith Witch” a title, or a general term for female Sith?


More than half of the screen is black with tiny code on Acer aspire one

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


Watts P.M.P.O. and audio equipment power


App to check if two numbers are equal in java using Android studio

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


How do you choose what variables are dependent/independent in regression?

How to determine which variables are dependent or independent?


Learning algorithm vs Model in Machine Learning


If i am the first coauthor of the paper, is it possible to change the order of names on the paper in my resume?

How to display your own name in publications list when you are a middle-author on a publication with a large number of authors?


how can i delete my hard drive and format to NTFS

How to remove Ubuntu and put Windows back on?


A science fiction story about a headdress that allows one human to control and experience another human's body

Story or Novella about Remote Controlling/Possession Human Beings


Slow NSolve of a system of 8 nonlinear equations inside Manipulate gives $Aborted

'Play' button in Manipulation and slow evaluations


Is it possible to project a 3D contour plot onto two dimensional space?


Why in series combination of circuit has same amount of current flow in every conductor?

Current in series resistors and voltage drop in parallel resistors


I would like the ability to flag employers on careers.stackoverflow.com


Do the comment boxes no-longer auto-focus?

Clicking on `Add Comment` used to focus on the comment area but it doesn't anymore


Orphan in a dystopia, food is served in edible containers

Sci-fi book, blue critters than only some people can see, kids fight the critters as they feed off energy and are a threat


Is there no solution to the blue-eyed islander puzzle?


Android FirebaseDatabase recyclerview null exception for a single variable(userid)

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


Ubuntu 14.04: '/boot/grub/i386-pc/normal.mod' not found (SolusVM)

error: file '/grub/i386-pc/normal.mod' not found


How can I recursively copy files by file extension?


How can an element append into an empty array in java?

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


Determine start/end points for line slope calculation

Assigning point IDs to respective start and end attributes of polyline?


Lost USB BlueTooth Dongle for Keyboard and Mouse


Swap rows with columns (transposition) of a matrix in javascript


Prove n is a perfect square if and only if $n^7$ is a perfect square, n $\in$ natural numbers

$\gcd(a,b)=1, x^a = y^b\Rightarrow x = n^b$, $ y = n^a$ for an integer $n$.


Question about Klein-Gordon field Lagrangian


How do I know if this is a positive or negative feedback to the op-amp?

Is the op-amp inverting or non-inverting?


Finding unnamed Antarctic peaks using QGIS?


DMG & Errata conflicting ruling clarification / What is defined as Use an Object?

What items can a Thief use as a bonus action with his Fast Hands?


How do I open the Xbox 360 guide on Xbox One?

How do I access the 360 guide while on XB1?


Dropping weapons to cast immediate spell with somatic components

Can a character take a free action outside of their turn?


Sum of Power of Two Fibonacci reciprocals

Evaluate the sum: $\sum\limits_{n=0}^{\infty} \frac1{F_{(2^n)}}$


If you can't see it coming, how do you get a dex save?

Are dexterity saving throws based on sight?


Non finitely-generated projective $\mathbb{Z}$-module

Submodule of free module over a p.i.d. is free even when the module is not finitely generated?


Why does Mathematica neglect this special case for a double integral?


Why the discriminant of a system of linear equation=0 implies it has infinity many solution?

Set of Linear equation has no solution or unique solution or infinite solution?


How to add a forced line break inside a table cell


JavaScript closure inside loops – simple practical example


Why mass has no effect on free-fall acceleration?

Why do two bodies of different masses fall at the same rate (in the absence of air resistance)?


Are these two sentences distinguishable on contextual grounds?


breeding a male aggron with a ditto in a luxury ball yet still getting pokeball babies?

How are Pokeballs passed down from the parents when breeding?


datetime2 define dates "globally" outside of \begin{document}

Formatting datetime2 in LaTex to 4th September, 2016 without the current day?


Instantiated my objects but I am still getting a NullPointerException Error

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


Getting the number of frequency in a list

How to compute a discrete histogram of a list


How do I install Ubuntu to a USB key? (without using Startup Disk Creator)


How can I install and use text-to-speech software?

How to text-to-speech output using command-line?


Is it possible to add pins to map kit solely based on physical address

iOS - MKMapView place annotation by using address instead of lat / long


prove if in connected graph degree of vertices is at most $d$ and there is one vertex of degree $d - 1$, then it can be colored in $d$ colors.


javascript extends class get all the properties

How to list the properties of a JavaScript object?


WSL and VHDX file size discrepency (Hyper-V not VBox)

How to compact VirtualBox's VDI file size?


How to change figure caption to Fig. 1. in stead of Fig. 1:


Unable to un-hide base class's member function

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


So many user apps, but only a few on launcher, why not a launcher page or a command to install on launcher?

How to add programs to the Unity Launcher or Ubuntu Dock?


'Meta user' link missing on the Stack Apps profile page

Why doesn't Stack Apps have its own meta?


Prove that the general norm equation satisfies the triangle inequality for n-dimensions

How do you show monotonicity of the $\ell^p$ norms?


How to distinguish between "each" and "every"?


What is the final price if the bid price exceeds the ask price in an order driven market?

What price is a limit buy and a limit sell order settled at?


Ability for mods to hard-delete a question or revisions


Every compact subset of $\mathbb{R}$ is the support of a Borel measure.

Is every compact subset of $\Bbb{R}$ the support of some Borel measure?


Passing an array of ints as an argument in C++?

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


Are non-Google emails stored only locally when using the Gmail app?

Privacy/Security concers for setting up business email using Gmail app on Nexus devices


Don't allow the target of a duplicate question to be deleted

Auto-flag duplicates of deleted questions for reopening / deletion


Why use img[:,:,::-1] instead of img in plt.imshow() in python


Command line move file with long directory path without repeating directory path


intuition behind cyclicality of the trace?


Is there a better way to use permutations?

How to generate all permutations of a list?


How can I define a mathematical function as a LaTeX macro?


Giving named variable to function dynamically

Passing a dictionary to a function as keyword parameters


How Can I create a bootable USB for Ubuntu on Windows 10 from an iso image?


What to do with a user insulting my other personal accounts?


Windows 7 - How to assign Macros to function keys?

Use function keys for pasting specific text


Could someone have negative reputation on Stack Overflow?

Why does reputation start at 1, and have a lower bound of 1?


Multirow and Multicolumn with missing lines


Exception in main "java.util.ConcurrentModificationException"

Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a loop


Detect if a key is down without waiting for key press in C# console application

Listen for key press in .NET console app


I can't compile my beamer file when I insert any equation in it!

beamer over miktex 2.9 is not working with math environment


Pivoting Query results based on column value

Efficiently convert rows to columns in sql server


SQL query INSERT not working inserting values into my DB

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


How to roll back Ubuntu to a previous version?


how to change the size of one block in beamer

Changing default width of blocks in beamer


Return total number of files within a folder using PHP


StackOverflow Reputation Stopped Incrementing

How do I read the history of my reputation?


How to make \begin{align} counter start over again?


Distance between two independent normal random variable

Distribution of distance from center of sample group


What is the difference between a field and a property?


Treating a differential as a difference of two quantities---legal or no?

How to treat differentials and infinitesimals?


Canon 5D Mark II vs Canon 1200D on 50mm Prime Lens

When do the differences between APS-C and full frame sensors matter, and why?


Can I remove ε from an inequality because it is arbitrary?

Intuition: If $a\leq b+\epsilon$ for all $\epsilon>0$ then $a\leq b$?


How can I apply a Logistic Regression model in real life?

Interpretation of R's output for binomial regression


Cannot install Ubuntu in VirtualBox due to "this kernel requires an x86-64 CPU, but only detects an i686 CPU, unable to boot" error


shell command 'var="[a-p]"; echo $var' has as output "h", any explanation?

Why does my shell script choke on whitespace or other special characters?


Unbinding inline onClick not working in jQuery?


Where to ask questions related to network software?

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


Android app: "NEVERMIND" button in dialog is confusing, should say "Cancel" instead

Can we get a clearer title for the "do not discard" comment button?


bash - problems reading text file and printing line by line

Reading file line by line (with space) in Unix Shell scripting - Issue


What scriptable OCR Software exists on OSX for a paperless office

Make existing PDF searchable ( OCR ) via command line / script


How can I take long exposures on Nikon D7000 with a wireless remote?

How can I take long exposures using a Nikon D7000 with wireless remote?


What is the difference between the float and integer data type when the size is the same?


Where can I get a clean ISO of a specific build of Windows 10?


Vote count rapidly changing for question and its answers


AWS IIS web instances behind load balancer needs net access

VPC public subnet internet access with ELB hooked up


Is it appropriate to use others' images in publications?

I'd like to use a figure from a paper; what's the best way to do this?


Squealing coming from laptop power supply?

Why do some AC adapters and power supplies generate a whining noise, and what can I do about it?


How to fix disk that is likely to fail soon?

SMART status:-- DISK FAILURE IS IMMINENT


Database - Enumeration type - Extra table or just a column

Decision between storing lookup table id's or pure data


Differences of pragma: no-cache and Cache-Control: no-cache

Difference between Pragma and Cache-Control headers?


how can I show that this function is uniformly continuous on $(1,0) $ and $(1,\infty)$

Is $\sqrt{x}$ uniformly continuous in $\mathbb{R}^+$?


This post has been locked; locked posts can't be voted on


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


when i trying to post on mysql it gives me " java.lang.NullPointerException "

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


Sequential Continuity does not imply Continuity


Java EE class method called in servlet return null everytime


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


How is this sentence formed: "The seniors make the freshers write practical files."

Why do we use zero infinitives with make, let, have?


How copy to clipboard with one click (using only JS and jQuery).?

How do I copy to the clipboard in JavaScript?


Can not install nautilus-gksu in Ubuntu 14.04 LTS


What is the current state of apple device (iPhone, iPod, etc.) support?


Change custom Node input through Python console

Control Cycles/Eevee material nodes and material properties using python?


How to check whether port 25 is open or not from ssh access to server

How can I see what ports are open on my machine?


Starting the email client doesn't include the attachment


Total sum for an object property value in a list using a lambda function

C# List of objects, how do I get the sum of a property


What are the requirements for a house in mobile Terraria?


function doesn't work on load links - jQuery function

Event binding on dynamically created elements?


How do you pay taxes on mined crypto currency that doesn't have a true price yet?


How to use more than 10 tab stops in bmatrix or other amsmath matrix environments?


Create instance of generic type in Java?


Attempt to invoke virtual method 'void android.widget.EditText.setText on a null object reference

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


MATLAB: How do I plot probability distributions in 3 dimensions? (involving Bayes rule)

How to draw a surface plot without black edges in MATLAB?


Can’t access Grub to reset root password

How do I reset a lost administrative password?


Im using windows 8 64 bits but all my .exe run at 32 bit

Why windows 8.1 64 bit install programs only in 32 bit?


Why do we say that elementary particles are pointlike?

Why do physicists believe that particles are pointlike?


Let $\{a_n\}$ be bounded sequence, satisfied $a_{n+1} \geq a_n - \displaystyle\frac{1}{2^n}, n \in \mathbb{N}$. Show that $\{a_n\}$ is convergent.

How can we show that the following sequence converges?


What medium should be used for long term, high volume, data storage (archival)?


Should we use CScript.exe or WScript.exe to run .vbs files?


Difference between sentences starting with "don't you...'' and "do(did) you..."

How to form this tag question – as a positive tag question, or a negative one?


Prove by induction that $\sum_{i=1}^{n} 2i=(n+1)n$, for every positive integer n.

Proof $1+2+3+4+\cdots+n = \frac{n\times(n+1)}2$


Check what kind of array this is via php

How to check if PHP array is associative or sequential?


The ViewData item that has the key 'MaritalStatus' is of type 'System.String' but must be of type 'IEnumerable'

The ViewData item that has the key 'XXX' is of type 'System.Int32' but must be of type 'IEnumerable'


What does the Canonical Commutation Relation (CCR) tell me about the overlap between Position and Momentum bases?


Testing for SQL injection but resulting in error?

How does the SQL injection from the "Bobby Tables" XKCD comic work?


About a specific argument purporting to show $0.999\dots = 1.0$.


Arrange permissions for files in the root

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


Are there any drawbacks to owning multiple credit cards?

Is it bad to have multiple credit cards?


Why do plants have green leaves and not red?


Computing A Multivariable Limit: $\lim_{(x,y) \to (0,0)}\frac{2x^2y}{x^4 + y^2}.$


Draw thinner line than 1 px using paint in android

Drawing line less than one pixel thick requires anti-aliasing in Android 4.2


Proof that the exponential function is the only solution to dy/dx = y, y(0) = 1

Are the any non-trivial functions where $f(x)=f'(x)$ not of the form $Ae^x$


What I supposed to see during Wiping the hard disk with dd command?


PDO: Show table keys fails to bindparam properly

Can PHP PDO Statements accept the table or column name as parameter?


How do I set environment variables from Java?


How to delegate task to someone else when task assigned to person is out?


$R$ is simple iff $M_n(R)$ is simple for rings without identity

for any ring $A$ the matrix ring $M_n(A)$ is simple if and only if $A$ is simple


Why can I call a private method of another instance of the same type outside of that instance?

Why and how does C# allow accessing private variables outside the class itself when it's within the same containing class?


input(): "NameError: name 'n' is not defined"


Fetch an email with imaplib but do not mark it as SEEN


java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference In News API Android

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


Geometric representation of the sum of a Geometric Series


Google Sheets, CountIf, name matches and is within date range from another spreadsheet

COUNTIF but when multiple conditions are met


How to compare two groups when one only has one data point?

Is there a statistical test to compare two samples of size 1 and 3?


How to check if Googlebot is crawling and indexing my site?

Why aren't search engines indexing my content?


Plot two functions with different ranges into one plot


Equivalence relations--prove R/~ is homeomorphic to R

Proof that $\mathbb R/[0,1]$ and $\mathbb R$ are homeomorphic


How to run next bash line even when set -e is switched

Preventing shell from exiting when set -e is turned on?


Difference between Workflow, Sequential Workflow and State Machine Workflow Templates in Visual Studio 2013 for SharePoint 2013

Difference Between Sequential Workflow & State machine workflow?


How to build a Facebook-style input box in GWT


What kernel options should I use to enable 4 cores in my intel processor?

How do I enable all four cores on my Toshiba P70-A notebook? (only one enabled now)


Software Updater Failed to download repositories 13.04

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


how to delete files in folder with thousands of files

Remove many many many files from a folder


How can i add Round Corner method for bitmap in my imageview android?

Set image with rounded corners into ImageView


Table spreaded over multiple pages . Tabularx

How to make a table on more than one page by using the table environment


How does PCA improve the accuracy of a predictive model?

How can top principal components retain the predictive power on a dependent variable (or even lead to better predictions)?


How do I do a full installation of Linux onto a USB flash drive

How do I install Ubuntu to a USB key? (without using Startup Disk Creator)


Chinese characters ending up blank in Database


On the singular vs plural aspects of "who"


Renaming values in multidimensional array


Srednicki's Path Integrals: Ground-State to Ground-State Transition Amplitude in the Presence of a Perturbation


E: Unable to locate package bcmwl-kernelsource


What's the difference between "double* grade", "double *grade", and "double* fn()"?

Placement of the asterisk in pointer declarations


Different behavior with map, select, etc. when using do...end blocks

Ruby block and unparenthesized arguments


If U contains A and B, and X is 80% of A, how much percents is X in U?

If U contains A and B, and X is 80% of A, how much % is X in U?


Prove that the norm of $E$ is generate by the inner product $\langle x,y \rangle =\frac{1}{4}\left(||x+y|^2-||x-y||^2\right)$

Norms Induced by Inner Products and the Parallelogram Law


Moderncv template + Xelatex won't compile with "casual" but with "classic" it does

xdvipdfmx pdf_ref_obj() error with fontawesome


Could there be an "I don't know what forum to post this in" meta-site (kind of)?

Is there a Stack Exchange site for asking questions about where a question goes?


Devising arbitrary coordinate system for site-plan that cannot be georeferenced?

Using customized Coordinate System in ArcGIS Desktop?


Create reference to variable based on another variable name in a bash script?

Is it possible to print the content of the content of a variable with shell script? (indirect referencing)


Is there a memory performance benefit of assigning a function to the prototype in Javascript?

Defining methods via prototype vs using this in the constructor - really a performance difference?


Exit php script somehow, but keep it running

How can I run a command which will survive terminal close?


Interpretation of two residual QQ plots from poisson regression

Checking residuals for normality in generalised linear models


Unable to execute command in ubuntu 12.04

ifconfig : Command 'ifconfig' is available in '/sbin/ifconfig'


Where did the Sun get its angular momentum?

How do the Planets and Sun get their initial spin?


chocolatey - is it safe to delete the hidden .chocolatey folder in Windows 10

How to clear Chocolatey cache in the free version?


Determinant of a block upper triangular matrix

Determinant of a block lower triangular matrix


error using mv to rename files in shell script

How do I easily rename multiple files using command line?


How define new environment in terms of existing environment?

newenvironment: error with \begin{align} and \end{align}


When do we need to put a comma after "so" at the beginning of a sentence?


Why does range(start, end) not include end?


How do I install Ubuntu to a USB key? (without using Startup Disk Creator)


Calling a method always throws NullPointerException with PowerMockito

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


error with tomcat HTTP Status 404 The requested resource() is not available from eclipse but works from browser

JSP in /WEB-INF returns "HTTP Status 404 The requested resource is not available"


How can I get the value of dynamically created input?

Event binding on dynamically created elements?


Can't switch between Gnome and Ubuntu desktop?

Switching window manager/desktop environments?


Purpose of Serialization in webapplication

Why does HttpServlet implement Serializable?


Trouble with nvidia drivers on Asus ROG GL522


How to turn HTC Widfire with blank screen into debug mode

Broken screen while debug mode was disabled. How can I re-enable adb?


How to display a backtick in Super User and Stack Overflow questions?

How do I escape a backtick ` within in-line code in Markdown?


How would one construct a NxN crossbar switch from solid state components?

What component to use for audio signal switching?


How to convert xml data of xml element to csv using xslt?


Vertically center inline-table element in a div


Self-hosted site now producing ERR_CONNECTION_REFUSED

What causes the 'Connection Refused' message?


Inside a linked folder, doing "ls" to relative paths outside it shows the contents pointed by linked directory, not the source. Is this correct?

Understanding directory symlinks traversals and the parent directory


The list of my favorites shows questions that are favorite by 0 users (and therefore they should not even be in my favorites list)

Why is this favorite appearing in my network proflile?


Extracting lines from a file based on two columns in another text file

compare two columns of different files and print if it matches


Escape a string for a sed replace pattern


Deprecated eregi Call, preg_match Fix Needed

How can I convert ereg expressions to preg in PHP?


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


Did Grindelwald and Voldemort use Fiendfyre?

Was the blue fire from Crimes of Grindlewald Fiendfyre?


Positive integer solutions to $3x^4-3x^2+1=y^2$


No newline before scientific units without using "~"

What package should I use to typeset units?


How to create trapezoid tabs in WPF tab control


How do I include a .bbx file in my .tex file?

Where can I put biblatex style modifications?


Best way to Pipe InputStream to OutputStream

Easy way to write contents of a Java InputStream to an OutputStream


Turtles won't go back to home beach to lay eggs


What is causing the lack of sharpness in this picture?

How do I diagnose the source of focus problem in a camera?


Python - Using the Multiply Operator to Create Copies of Objects in Lists


Do settlers need access to the ground to farm?

What is the best way to defend settlements?


Upside down mouse cursor and inverted position on Ubuntu 18.04


I am stuck in tty1-6 screen Ubuntu 18.04

Removed Python 3 and now Ubuntu Software Center, terminal and other applications don't work


Trying different flavors of Ubuntu from a USB drive

How to create a bootable USB with multiple ISO images in it


How to get the best enchantment on your pickaxe

How do I improve my chances of getting silk touch when enchanting?


Java: Float Formatting depends on Locale

Force point (".") as decimal separator in java


prove $EO=OF$ is there an euclidean solution?

How to prove the midpoint of a chord is also the midpoint of the line segment defined by the points of intersection of other two chords with it?


Converts a Fahrenheit degree to Celsius in java


Vote counts >= 100 for linked questions do not wrap properly

Related questions with over 99 score display incorrectly


Poker Game: How to Add/Remove Cards from player's hand when using enums?

How to delete an element from an array in C#


How do I create sticky footers - the other kind of sticky?


Prove that $\int^1_0 f(x)\,dx = f(0)+\frac12f^\prime(c)$


What is the most primitive organism that can die of aging?


Null pointer Exception while using RecyclerView and Async Task

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


How to "bump" a question that's the same as the one you wanted to ask

How do I get attention for one of my own questions without a good answer?


c++ accessing childs method from object stored in array of parent


Client Time shown instead of server Time in javascript


Find the probability that: a) the second ball is red b) the second ball is red, given that the first is red.

Pick an urn and pick two balls from the urn


Travelling to the UK on an accompanied visa, unaccompanied


Link between moment-generating function and characteristic function


How can we make any integer m>11 using 3's and 5's only??


Energy conservation and quantum measurement


XPATH - preserve spaces with getAttribute


Why do we believe space and time are intertwined? What is the idea behind it? And how do we arrive at this conclusion?


What effect would the feat Dual Wielder have on a Monk primarily using unarmed strikes?

Is an Unarmed Strike considered a Weapon attack?


Which one sounds better? "of mine" or "my"


JS - Passing function to addEventListener

How to pass arguments to addEventListener listener function?


"My App has stopped" error when I try to run my app on a real phone

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


javascript comparison, which one is correct and why?

How do you performance test JavaScript code?


App Store only sells latest OS X version? Can't get Lion 10.7 anymore?


CDATA tags may not nest at in primefaces

java.lang.IllegalStateException: CDATA tags may not nest


proof $\Vert a\Vert^2\Vert b\Vert^2=\Vert a \times b \Vert^2+\vert a\cdot b\vert^2$


Are groups satisfying $g=g^{-1}$ for all $g \in G$ abelian?

Prove that if $g^2=e$ for all $g$ in $G$ then $G$ is Abelian.


On the password_confirm widget, how do I change the text of "Password"?

Changing the label of Change Password Form


Prove or disprove that every even integer is the difference of two squares.

Prove every odd integer is the difference of two squares


Cross-thread when set visible for winForm

Cross-thread operation not valid: Control accessed from a thread other than the thread it was created on


Interpreting estimates from generalized models in R

How to interpret coefficients in a Poisson regression?


Display only the Specific Rows containing multiple words (with Logical operator-AND) in Python

Regular Expressions: Is there an AND operator?


Upload the more than one files in the same directory on aws s3 using ruby

Amazon S3 boto - how to create a folder?


How can I create an advanced grid interface?


A simple graph $G$ with $n$ vertices has at least $n+4$ edges. Prove that it has two cycles having no common edge.

If ${\lvert{E(G)}\rvert}>{\lvert{V(G)}\rvert}+3$, graph $G$ has at least two disjoint cycles.


Do the entropy of the universe and third law of thermodynamics conflict?

How can it be that the beginning universe had a high temperature and a low entropy at the same time?


How does Windows know recognize an SSD as an SSD and not a HDD?

SSD in external USB 3.0 closure not recognized as SSD


AVFoundation IOS: playing Background Music

Objective-C - where to put the NSNotificationCenter?


Python Panel Dropdownlist and Integer Button


Blender render crash when using subsurf modifiers.


Differentiation of the cosine and sine power series

Understanding ProofWiki's proof of differentiation of sine power series


Find all primes $p$ for which there are positive integers $x, y$ such that $p+1=2x^2$ and $p^2+1=2y^2$

Solutions to $p+1=2n^2$ and $p^2+1=2m^2$ in Natural numbers.


Why can only the Higgs particle have a non-zero expected value in a vacuum?

Why cannot fermions have non-zero vacuum expectation value?


panda reads 0.6 as 0.59999999999999998 - wrong decimal places


Extending a homomorphism of a ring to an algebraically closed field

Homomorphism extensions over finite ring extensions


Constructing PHP/MySQL search query with variable options

How do I create a PDO parameterized query with a LIKE statement?


Textbook on the Geometry of Special Relativity


Blender Material Preview Transparent Objects Bug (2.91)

AMD GPU Material in "material preview mode" and "rendered mode", is entirely gray as background. Only outline is displayed


No surname in Indian passport and applying for Japan visa.

No surname on passport and applying for Japanese Visa


update-java-alternatives vs update-alternatives --config java


Length of 1D curves using 2D integration with $\delta$

Measuring a curve with Dirac delta function.


Create an adaptive amount of local variables for error propagation


Reversing a list using recursion in python

How do I reverse a list using recursion in Python?


`LaTeX` documentation and reference guide

What are good learning resources for a LaTeX beginner?


Why can't $A_4$ has a subgroup of order $6$?

Existence of subgroup of order six in $A_4$


Evaluation by methods of complex analysis $\int_{0}^{1} \frac{\ln(x+1)}{x^2+1} \mathrm{dx}$

Evaluating $\int_0^\infty \frac{\log (1+x)}{1+x^2}dx$


why second scanf is skipped when twice scanf is used with input as character?


Accessing cuda device memory when the cuda kernel is running


How do I pass current item to Java method by clicking a hyperlink or button in JSP page?


If electrons are waves, how do they repel each other?


check the horizontal scroll bar reached at end of webview


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


How to set object elements correctly in java?

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


Why does the status "under peer review" change to "Awaiting Reviewer selection" after 2 months?

What does the typical workflow of a journal look like?


PHP foreach insert into same array as it took the data from

change initial array inside the foreach loop?


Placing labels equidistant from a line segment (Version 2)


sorting strings ending with numbers, by the ending number

Sort JavaScript String Array containing numbers


Prove that $\{(x,y)\in \mathbb{Z}\times\mathbb{Z}: x^2\equiv y^2 \!\!\!\mod \!\!4\}$ is an equivalence relation

$x\sim y\iff x^2\equiv y^2\pmod{\!6}$ is an equivalence relation.


problem simplifying boolean algebra expression using consensus theorem


Should I replace the Canon 18-55mm f/3.5-5.6 kit lens with a 40mm f/2.8 or 50mm f/1.4?


Weird behaviour while obfuscating a JAR with proguard


How to break URLs in references into multiple lines

Hyperref + \url: long URL with dashes won't break


Right click graphics problem Ubuntu 14.04

Strange artifacts along window borders after waking computer from sleep mode


How can I fix active quote mark characters on update to TL 2018?


How to roll back Ubuntu to a previous version?


Manually changing elevation data of DEM using QGIS


Show that if matrix $X$ satisfies the relation $X \cdot Y = Y \cdot X$ it has a specific form


Android textview whitespaces are disappearing

How to keep the spaces at the end and/or at the beginning of a String?


Ubuntu live USB shows blinking cursor on boot

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


Select from list of reasons when performing downvotes


How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE?


Ubuntu 16.04 wifi not working with Realtek RTL8821AE wireless card

Dropping Internet connection on Realtek Semiconductor Co., Ltd. RTL8821AE


Computing determinant of a specific matrix.

Determinant of a specially structured matrix ($a$'s on the diagonal, all other entries equal to $b$)


(com.google.android.gms.maps.model.MarkerOptions)' on a null object reference

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


What is minimum period by which my cycles should be service?


Delete symbolic link to c:\ when not being able to access c:\


Will new Minecraft features appear in existing worlds?


Every well-ordered set is isomorphic to a unique ordinal

There is a well ordering of the class of all finite sequences of ordinals


How to change a specific line in a text file

how to replace a particular line in a text file using php?


python: NameError：global name '...‘ is not defined

Python: NameError: global name 'foobar' is not defined


How to run a console through SSH client and keep it open?

Keep running a python program even after logging-off the ssh session


How can I run an external program from C and parse its output?

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


Why is gravitational potential energy shared between two particles?

Kinetic energy of the object, but Potential energy of the system: Why is it so?


Can you help me with my capacity planning?


When it is necessary to assume distribution to calculate probability?

Why would parametric statistics ever be preferred over nonparametric?


In a $\triangle ABC,$ Evaluation of minimum value of $\cot^2 A+\cot^2 B+\cot^2 C$

Minimizing $\cot^2 A +\cot^2 B + \cot^2 C$ for $A+B+C=\pi$


Could you (moderators) stop deleting community wiki questions?

What is a historical lock, and what is it used for?


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


Is there a Google Drive client available?


mongodb force synchronous to find documents

What is the right way to make a synchronous MongoDB query in Node.js?


NullPointerException exception when encrypting and serializing


How change user form mode programmatically?

How to specify which form mode to use for a content type


Is "What can I help with?" proper English?

When is it appropriate to end a sentence in a preposition?


How to Bind to Static IP address in MySQL


Are there any other instances of an existing knight appointing another knight?

What are the advantages that come with knighthood in Westeros?


Why can't the JVM ensure garbage collection


How can I resize a group of images with reference to their center?

Resize multiple layers around their respective anchor points


Link to "review" doesn't show up in the top bar on child metas for certain amounts of rep

Add the “review” link in the topbar on "private beta" sites if I am able to review any review queue


Difference between "I've got a cold" and "I've gotten a cold" in American English

Difference between "I have got" and "I have gotten"


Is it possible that I could see the mobile number of Facebook friends

How do I get the phone numbers of my Facebook Friends?


Clock & Date won't show up on boot sometimes in Ubuntu 13.10


How/Where do I check my ubuntu laptops's CPU usage?


C#: Difference between List and Collection (CA1002, Do not expose generic lists)

Collection versus List what should you use on your interfaces?


Making sense of the log after a BSOD in Windows 7 Ultimate

Reasons for the blue screen of death in Windows 7 logs


When do we say independence is the probability of intersection being equal to the product of probabilities?

Mutual Independence Definition Clarification


How to allow new users to post without moderation in phpBB 3.2.1?

How to allow new users to post without moderation in phpBB 3?


Why `FileExistsQ` gives `False` to some file full paths, which however, are given by `FileNames`?


Export to excel multiple sheet/tab in salesforce apex


Batch remove empty directories (Removing as many directories as possible, but no files)

Recursively delete empty directories in Windows


Why is "f" in a singular replaced with "v" in its plural?

Why is there no consistency in the plural forms of words ending on an "f" (e.g. safe, roof, dwarf, etc.)?


Why couldn't Palpatine force fly in Return of the Jedi?

Why Can't Palpatine and Maul use the Force to stop themselves from falling?


How do I convert two lists into a dictionary?


If $GCD(a,b)=1$, then $GCD((a+b)^m , (a-b)^m )$ is at most $2^m$?

How to prove $\gcd(a^m,b^m) = \gcd(a,b)^m$ using Bézout's Lemma


For fixed $z_i$s inside the unit disc, can we always choose $a_i$s such that $\left|\sum_{i=1}^n a_iz_i\right|<\sqrt3$?


Monthly payment on a compounded daily car loan?

How do amortization schedules work and when are they used?


UnboundLocalError on local variable when reassigned after first use


java null pointer exception because of loading properties

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


Story of twins separated by the relativistic near light speed effects, myth of hyperspace travel?

A novel about a man left behind by his family's spaceship who helps discover a warp drive


realloc(): invalid next size: 0x0000000002119010

Facing an error "*** glibc detected *** free(): invalid next size (fast)"


When should you use "to" following a "why"?


How to solve java.lang.NullPointerException while reading same file in two java programs?


How do I edit a class within a dll with one program in order to have the information accessed in another?


How can I replace colon with dot in caption figure?


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


sort dictionary list alphabetically by key

How do I sort a list of dictionaries by a value of the dictionary?


sql injection protection by restricting common symbols


When contractions shouldn't be contractions

Can you contract the main verb '[I] have' in a sentence?


Just another suggested edit-suggestion suggestion


A haskell floating point calculation anomaly?


null pointer exception to struct in Java program

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


Deserialize JSON object array in C# using LitJson

Serialize and Deserialize Json and Json Array in Unity


One word describing making an uncharacteristically stupid mistake?


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


How to create a horizontal tree using braces


How do I show that there exists variational/action principle for a given classical system?


Chromium 34 and later cannot detect flash plugin


Should I season a Teflon-coated stainless steel frying pan


Need to download Census 2010 population,aging and housing information at block group level


What can we conclude about consciousness in the past?

Is the consciousness currently in oneself the same the the consciousness that used to be or in the future will be in oneself?


how do you obtain a data set (around 10,000 data points) with a mean of 0 and standard deviation of 1.

How to simulate data that satisfy specific constraints such as having specific mean and standard deviation?


solution of a ODE with a function of $\dot{x}$


((JavascriptExecutor)driver).executeScript("scroll(0,1000)"); Not working on Selenium Webdriver 3

Unable to scroll down to bottom of div with data loading dynamically


How do I include linked data to a Page in Page manager?


Need more intuition for the curse of dimensionality

Why is Euclidean distance not a good metric in high dimensions?


The 'Software Updater' does not have enough disk space on /boot drive


Upgraded to macOS Catalina and now cannot install latest version of SQLDeveloper.app

"Install Spotify" can't be opened because Apple cannot check it for malicious software


Are there any risks to rooting a device?


Changing graphicx default float positioning

What are the default placement options for a floating figure in Latex?


How to rescue a server with no free inodes (from DDOS)

rm on a directory with millions of files


How can I transfer colors from first image into second image?

Color Transfer from colored image into grayscale image


What is the difference between generalized estimating equations and GLMM?


Insert a space after a command: {}, vs \ , vs \space


Change GRUB text size based on resolution


If $H$ is a normal subgroup of $p$-group $G$ then why is $H\cap Z(G)\neq \{e\}$?

A non-trivial normal subgroup N of a finite group G or order $p^n$ is such that $N\cap Z(G)\neq \{ 1\}$


What's the order of the Final Fantasy games?

Is there a Relationship between the Final Fantasy games?


Can every quadratic extension of $\mathbb{Q}$ be extended to a cyclic extension of degree 4?

A characterisation of quadratic extensions contained in cyclic extensions of degree 4


Cannot upload photo to Indian eVisa application HELP

Unable to upload my photo while applying for an Indian e-Visa. What am I doing wrong?


Split a comma-delimited string into an array?


Python ctypes: doesn't load dll as expected

Exporting functions from a DLL with dllexport


Recursively removing the content of a directory but not a directory itself

Removing the content of a directory recursively


Single Flag deletes comment with profanity

What is the SE version of Seven Dirty Words?


Calculate the coordinates of one of the vertices of a rectangular triangle with data on the length of one side

Finding point coordinates of a perpendicular


Removing any character besides 0-9 + - / * and ^


The robo-approvers are killing my will to review edits


Using the DOCUSIGN API in MVC , need to authenticate the logged in user


What's the purpose of the 'attr_accessor' in creating objects in Ruby?


What exactly are some fundamental differences between probit model and logistic regression

Difference between logit and probit models


Given a matrix $A$ of rank $n$, show that $\det(\operatorname{adj}(A))=\det(A)^{n-1}$ and $\operatorname{adj}(\operatorname{adj}(A))=(\det A)^{n-2}A$

Prove that if $A$ is regular then $\operatorname{adj}(\operatorname{adj}(A)) = (\det A)^{n-2} A$


Editing a chat message causing a new message to be posted

Editing a previous message posts a new one instead


Japanese keyword hack in Laravel website


Which files does `adb backup -apk -shared -all -f  back up?


What makes a better constant in C, a macro or an enum?


Determinant of a specially structured matrix ($a$'s on the diagonal, all other entries equal to $b$)


Draw "less than functions" in tikz graph

TikZ: How to draw a pattern at the border of a tikz path


Why are Unity 7 and Unity 8 discontinued now?


What is the importance of eigenvalues/eigenvectors?


Are there any coding style guidelines for LaTeX?


Handling a colon in an element ID in a CSS selector


How did Bellatrix Lestrange know Sirius was an animagus?

How did Lucius Malfoy know Sirius's Animagus form?


Adding a .tar.bz package to my local repository?


When do you use Java's @Override annotation and why?


How does a Pokémon gain CP when evolving?


Calculate ${2^{n + 1}}\prod\limits_{k = 1}^n {\cos \frac{{\pi k}}{{n + 1}}} $

Product of cosines: $ \prod_{r=1}^{7} \cos \left(\frac{r\pi}{15}\right) $


"Treats of the place where Oliver Twist was born"


Non EU citizen with German Residence Permit Transit in London

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


Are the familiars you summon the same everytime?

What happens when a familiar from the Find Familiar spell "dies"?


Is there a Java library that can "diff" two Objects?


Why isn't my Minecraft LAN server working?


How to get client's IP address using JavaScript?


Features and Patterns for Managing Ordered Lists


How to solve the equation $yy''-y'y^2-(y')^2$?


Event binding on dynamically created elements?


Method not called when using yield return


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


Running an asynchronous operation triggered by an ASP.NET web page request


Input of integer in the range of 10^1000


How to search subdirectories for files and then copy them?

Copying files from somewhere within a directory tree to a folder


Two callbacks after animating single element

Callback of .animate() gets called twice jquery


Any official or semi-official continuation of Terminator - the Sarah Connor Chronicles TV-show?

Is there anything canon in the Terminator Universe that picks up where Terminator: The Sarah Connors Chronicles leaves off?


Mount NTFS partition at startup, with non-root user as owner


100A sub panel from 150A Service at Body shop

What wire gauge do I need for a 100 Amp subpanel at the end of a 60' wire run?


Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X" error?


Why do British people pronounce "idea" with an "r" sound at the end?

Why is "idea" sometimes pronounced as "idear"?


What to do to have an equation going over the page

Is it possible to pagebreak aligned equations?


Best way to transfer an array between PHP and Javascript

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


How to start learning photography Online for free?


Proving the bilinearity of a certain form

Simplifying the expression of a product of inner products


Why is my site not showing up on Google?

Why aren't search engines indexing my content?


How can I predefine the variable ranges used within a Manipulate?

How can I pass in parameters for multiple controls to a function that returns a Manipulate?


Why is the font-size larger than normal?

Ubuntu 20.04 interface font too small after restart, even with high scaling factor


Something which is not terminal or fatal but lifelong

Difference between "acute", "chronic" and "obtuse" in the sense of illness


How to serve static assets with Nginx in maintenance mode (503)

How to setup custom 503 error page in Nginx that intercepts all requests?


Windows 10 screen garbage, do not know what else to try

How do I stop Windows 10 from updating my graphics driver?


How can I change the text color with jQuery?


$\chi^2$ goodness of fit - how to compute expected counts when $\exists$ unknown parameters


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


how to install Ubuntu on Asus Transformer TF101

What hardware does Ubuntu Touch support?


Highest compression for files(for web transfer)?


linker error for no obvious reason: undefined reference

Why can templates only be implemented in the header file?


How to use a special character as a normal one in Unix shells?


Why do conductors moving in Earth's magnetic field not create electricity?

Can the Earth's magnetic field be used to generate electricity?


Using rsync to preserve permissions only

How to clone/copy all file/directory attributes onto different file/directory?


Given any finite number of non-zero prime modular residues, are there infinitely many primes that share those residues?


Where does my mass go when i lose weight?

How does mass leave the body when you lose weight?


How can I set default terminal used in Unity?

Where can I set the default terminal emulator?


Can a grappling creature cause a prone creature it is grappling to be unprone?

Can I force a creature out of prone during a grapple?


How I support different display resolutions?

How do I make a 2D game resolution independent?


How to set a variable to a dictionary in python?

Calling/selecting variables (float valued) with user input in Python


"E:Type '<!DOCTYPE' is not known on line 1 in source list" how to fix?

How do I fix this "E: Type '*' is not known on line * in source list ..." update error?


Taking Fourier transform with WolframAlpha gives unexpected result

What are the most common pitfalls awaiting new users?


How to tell if a server running Windows Server 2016, which you're accessing via Windows RDC, is virtual or real?

How do I know if I'm working on a Virtual Machine or not?


Proving that $|\{B\subseteq S: |B|<\infty \}|=|S|$

The cardinality of the set of all finite subsets of an infinite set


Issue creating bootable USB using dd command

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


Pause print of large object when it fills the screen

Equivalent to unix "less" command within R console


How do you prevent expanding outer element when adding padding?

keep padding from making the element bigger?


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


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


need of classes though we have structures in c++


marginal conditional distribution from MCMC output

Marginalising over standard deviation of normal to get the posterior on mean


How to change the name of document elements like "Figure", "Contents", "Bibliography", "Appendix", etc.?


"Squeezing" a game object based on distance to another game object

How can I "squeeze" a game object when it is pressed between two others?


[...].map(parseInt) only returns one value in the result array

Why does parseInt yield NaN with Array#map?


Reference different places to the same footnote


Picking a $\delta$ for a convenient $\varepsilon$?


Why are answerers not notified when there's a change in the question?

Notify us when the question has been edited after posting an answer


Can I get start and stop time stamps of executed Linux shell commands?

How to capture all the commands typed in Unix/Linux by any user?


I have a Student Visa to Spain, after it expires can I leave to travel the rest of the Schengen area?

Does tourist visa (90 days) apply after a long-term visa ends in Schengen countries?


Is it true that English has no future tense?

Why doesn't the auxiliary will qualify as future tense?


How to grant certain apps root permission through ADB?

Can you grant superuser privileges to an application?


Difference between function myName() and var myName = function() in javascript?

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


How can i fix the damaged area on varnished hardwood floor?

Cleaning dried up hand-disinfectant from lacquered wood floor


Can you help me with my capacity planning?


Get repo name and pull number from GitHub url

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


Markers of \usetikzlibrary{plotmarks} in nodes shifted compared to \addplot

Why does \pgfuseplotmark put so much space to the left of the mark?


JavaFx application gives error when launches

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


Helping a user who asks multiple questions?

Dealing with bundle/omnibus/list-of-questions question that consists of rather distinct questions


What is the smallest object that can be summoned by a Summoning charm?

What are the rules and limits of Accio spell?


Unable to log in to Cinnamon session 18.04

Cinnamon session crashing login from greeter


support time of other Ubuntu LTS flavours?

Where can I find the status of the released versions of Ubuntu?


How to show textures in the 3D View editor?


passing two dimensional array into function in C

Correct way of passing 2 dimensional array into a function


Create a list of dictionaries without overwriting

List of lists changes reflected across sublists unexpectedly


cmd asking for administrator privileges in windows 8

How to access the Administrator Command Prompt in Windows 8?


Why are the SRAM data and address pins numbered?

Does pin order matter at all for this RAM?


How to enable virtualization on booting? (Ubuntu 13.10)

How do I enable hardware virtualization technology (VT-x) for use in Virtualbox?


Cannot connect to WiFi available networks in 17.04

Ubuntu 17.04 connected to wifi but can't browse internet


How to make leaving a PhD program seem like a positive thing on a resume

Is it possible to make leaving a PhD look good on a CV / Resume?


What is Golden Ratio and how do we implement it in designs?

Why does the golden ratio work? Or does it?


Motivation For Weight Choice In Pooled Variance


how can I align a line a vertices evenly preserving the angle?


My blender game is not rendering properly, some faces not showing and materias don't show up correctly


if the curvature is constant and positive, then it is on the circunference


I bought a laptop that came with a 128GB SSD and a 1TB HDD. Can I install ubuntu entirely on the HDD?

How to use manual partitioning during installation?


Why do we say " talk show" not " talking show"?


How many people die in each episode of Game of Thrones?

What is the average number of deaths per episode?


Chat application using PHP, MySQL and Ajax

Is there some way to PUSH data from web server to browser?


Is there any possibility how to send an AJAX after close the browser window?

JavaScript, browsers, window close - send an AJAX request or run a script on window closing


How to record the actual running time of a program with other programs running?

How can other processes affect measurements made with `time`?


How to best integrate HTML/design with C# code in ASP.Net or ASP.Net MVC?

Is it OK to create the HTML first for an ASP.Net or ASP.Net MVC site?


What is the sequence loading linux kernel module on startup? How priority is set to them?


How do I read this linear model output from R?


Google doesn't use meta description on SERP

Why won't Google use my meta description?


apt-get upgrade with /usr/bin on aufs fails to create backup link

What means "unable to make backup link of /binary before installing new version: No such file or directory"?


Null Pointer Exception while creating the mock object

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


How to implement "symmetric non-strict or" in Haskell

How to do parallel "either-side" short-circuiting with "and" and "or"


Always creating a second document with slightly different configuration

Controlling draft options from a Makefile


How to remove an object inside an object with MongoDB (not inside array)

Deleting a key/value from existing MongoDB entry


Novel about a civilization escaping from their world, breaking through the alien experimnent in their silver spaceships into the alien universe

Earthlings create and interact with a pocket universe; universe inhabitants eventually desire to escape


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


rMBP kernel_task spikes when connecting more than one external monitor

CPU usage is too high with Yosemite and an external monitor


Protected questions and overall SO network reputation

Allow people to answer protected questions if they have earned at least some amount of combined SE rep


How to track ip adress of a computer performing db operations

How to get a user's client IP address in ASP.NET?


Ubuntu 14.04 to 16.04 upgrade got interrupted


sanitizing inputs with prepared PDO statements explanation


How do I reset a lost administrative password?


visiting visa for my mother to come to the uk

Should I submit bank statements when applying for a UK Visa? What do they say about me?


How to put MacBook to sleep using only an attached Windows keyboard?


why smartphones become laggey and slow with time?


What is the relation between electromagnetic wave and photon?


Trying to install ADB on Ubuntu, permission denied


Putty ssh client fails with Segmentation fault after upgrade to 17.10

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


Error converting float array to string array