StringCharcaterIterator is not saving the characters to characters array or List

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


How (and where) do I upload wallpapers for our Ubuntu community?

How do I submit wallpapers to be considered for inclusion in Ubuntu?


A Regex that will never be matched by anything


All instances of a class have the same dict as an attribute in Python 3.2


Emission Material should not emit light (Cycles)

How do you make an image emission without washing out the image?


Prove that every unbounded sequence contains a monotone subsequence that diverges to inifnity.


80s children TV series where a chest in the attic was a portal to another world

Old kids show from the 80's about two kids with a magical compass that took them to another world


How can I recognize Mir runing on tablet/phone running Ubuntu Touch Saucy Salamander?

How do I find out if my system is using Mir?


How can I get fields from one object and add them to another in Javascript?

How can I merge properties of two JavaScript objects dynamically?


How to avoid "ConcurrentModificationException" while removing elements from `ArrayList` while iterating it?

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


Can you do Top-K frequent Element better than O(nlogn) ? (code attached)

The Most Efficient Way To Find Top K Frequent Words In A Big Word Sequence


javascript onsubmit without submit button, by enter via keyboard

Submitting a form by pressing enter without a submit button


WiFi network options are not available after restart

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


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


When using Two-Weapon Fighting, are your bonuses still added to the offhand attack roll?

Does two-weapon fighting give any penalties to the offhand attack?


Should users be directed to a 404 page or a landing page?


Save not Serializable Collection to the file

Java Serialization with non serializable parts


Change pivot or local origin of an object


An equivalent definition of uniform integrability


What's the easiest way to unrar a file on Ubuntu 12.04


Why so many words in English are pronounced different from their spelling?

Why does English spelling use silent letters?


How can I Forward a subDomain to a specific port?


Windows C++: How can I define a callback member function of type WINAPI?

How can I pass a class member function as a callback?


Can the speed of light actually changes?


Kernel_task using 300% CPU time, high fan speed and slow computer in MacBook Pro

kernel_task hundreds of % CPU yet cpu frequency is being lowered


Closed and connected graph of a function implies continuous function

$f:\mathbb R \to \mathbb R^n$ be such that $G(f):=\{(x,f(x)):x \in \mathbb R\}$ is closed and connected in $\mathbb R^{n+1}$ , is $f$ continuous ?


How to reset time to 00:00:00 and change to timeMilis?


Find all entire functions such that $|f(z)|\leq |\sin(z)|$ for all $z\in\mathbb C$.


Is there a way to remove a whole property from a js object

How do I remove a property from a JavaScript object?


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


What is the purpose of closing a question?

What is a "closed" or "duplicate" question?


Is there a pythonic way to check if a prompt or input statement is a float?

How do I check if a string is a number (float)?


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


How do I check if a site already exists from PowerShell?

Powershell and checking for Site existence


How to add progress bar to shell scripts

How to add a progress bar to a shell script?


OS X Terminal not recognizing any commands

Terminal returns not found for most commands Mac OSX


Differential equation problem. Integrating the logistic equation.

Modelling population with $\frac{dP}{dt}=P(\beta - \delta P)$


If I cook chicken breasts in instant pot for a "longer time" would they come out super tender? I'm thinking 12 minutes or so

Why does meat in the crockpot always end up dry?


Agregate data from multiple rows in one row

SQL query that concatenates values from duplicate rows in a single table


Why Does the Median Minimizes the Sum of Absolute Deviations?

The median minimizes the sum of absolute deviations (the $ {\ell}_{1} $ norm)


How to Prove with Mathematical Induction $3^n > n^2$


proving that the set of all english words is countble.

Is the set of all finite sequences of letters of Latin alphabet countable/uncountable? How to prove either?


Show that if $\sum_{n=1}^{\infty}\lvert\lvert Te_n\rvert\rvert^2<\infty$ for an orthonormal basis $e_n$, then $T$ is compact

Let $H$ be an infinite-dimensional separable Hilbert space, show that a Hilbert-Schmidt operator is compact


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


How to specify correctly codebase and archive in Java applet?


Refresh @ApplicationScoped bean gives nullpointer

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


Want to delete a vector from another vector in C++


ReferenceError: CONCATENATE is not defined


C# Public variables vs Properties, what's the difference?

What is the difference between a field and a property?


Does a HyperThreaded Quad Core Processor Actually Have 8 "Cores"

What are "hyperthreading" and "virtual cores"?


Error booting after fresh install - Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)


How to hack into a deceased person's Mac that is still running?


in my mysql table having rows in one single cell i have array. How can i select rows which are having a perticular array value?

I have an array of integers, how do I use each one in a mysql query (in php)?


Add terminal output at the bottom of a text file

Command to append line to a text file without opening an editor


When should you explicitly use a StringBuilder?

StringBuilder vs String concatenation in toString() in Java


Prove there is no "slowest" converging series

Can a sequence which decays more slowly still yield a converging series?


I have the B1B2 visa but can only stay for 90 days

I have a B2 visa for the US, but I was admitted under the Visa Waiver Program. Now my ESTA will expire before I leave the US. What should I do?


Why does JS allow object properties to be both "quoted" and non-quoted? Is there a difference?

What is the difference between object keys with quotes and without quotes?


How to resolve NullPointerException with Notifications and WorkManager when launching an Activity?

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


Linear gradient is not working with  element

What are valid values for the id attribute in HTML?


How to find out where mystery SPAM scripts are coming from?

How do I deal with a compromised server?


Issue setting up Docker on Windows 10 Home using WSL2

How to install Windows 10 Home 19018 update?


What if my question is not answered nether commented and I do not have enough reputation to start a bounty?

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


How can I add an application icon to Gnome app launch menu

Adding custom applications to GNOME launcher


Make a script in home to execute with sudo rights

How to run a specific program as root without a password prompt?


As a Bard multi-classing into Warlock, what spells do I get?

If I multiclass into 2 or more spellcasting classes, how do I determine my known/prepared spells?


How is the su command masking/protecting my password from being displayed on screen?

Why is the password I entered not visible?


Isn't one-hot encoding a waste of information?

Mapping of categorical features into binary indicator features


How to move modifications in Napili template to production?

Lightning Community Builder: Can I move (ChangeSet/Migration Tool?) a PAGE from Sandbox Community to Production?


Are both ground pins on the ATMEGA internally connected?

If a PIC MCU provides multiple Vdd/Vss should you provide power to them all?


How can you make a function go to another function?


undefined reference to a user-defined function

What is an undefined reference/unresolved external symbol error and how do I fix it?


Let $r$ be a rational no. with $0<r<1$. Then $r$ can be expressed as a sum of reciprocals of finitely many distinct positive integers

Prove that any rational can be expressed in the form $\sum\limits_{k=1}^n{\frac{1}{a_k}}$, $a_k\in\mathbb N^*$


Evaluation of Differentiation and Integration


What is the difference between re.search and re.match?


java.lang.IllegalArgumentException: Document base [...] does not exist or is not a readable directory

java.lang.IllegalArgumentException: Document base [...]org.eclipse.wst.server.core\tmp0\wtpwebapps[...] does not exist or is not a readable directory


Best Way to Distinguish Equal List items in Python

Find and replace duplicates in Array, but replace each nth instance with a different string


How can I vertically align the numerators of two fractions?


Ubuntu lastest kernel update broke my GFX drivers

AMD driver does not work on kernel 3.19.0-26


Examples of conjectures that were widely believed to be true but turned out to be false

Examples of patterns that eventually fail


Ubuntu 14.04 LTS: session does not start and comes back to login


How to change from csh to bash as default shell


Application of Lagrange Multipliers in action principle

Hamilton's principle with semiholonomic constraints in Goldstein


What to do (if something) when someone gets your paper wrong

How to react to your work being cited incorrectly or in a misleading way?


How to prove that $\sup \left( {{A_1} \cup {A_2}} \right) = \max \left( {\sup {A_1},\sup {A_2}} \right)$?

Let $A,B \subset \mathbb{R}$. Show that $\sup(A \cup B) = \max\{\sup A, \sup B\}$


What is the purpose of prefixing a new Date with the unary `+` operator?

What does the plus sign do in '+new Date'


Trying to Delete Student but keep getting error

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


Best symbol to use for ... in the case of 1,...,n

\dots versus \ldots - is there a difference?


How to put a figure correctly in required place

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


App that provides a keyboard shortcut to mute/unmute the microphone?

How to mute the microphone on Key-Down and unmute it on Key-Up?


Does the detele operator in C++ de-allocate a single address or a block?

How does delete[] "know" the size of the operand array?


Is it considered bad form to link to paid tutorial?

When is it appropriate to link to your own paywalled website from your answers?


Is it better to write sql query as a stored procedure or write it inside C# and execute it dynamically

What are the pros and cons to keeping SQL in Stored Procs versus Code


Simple but hard 2 by 2 system in $x$ and $y$

Steps to solve this system of equations: $\sqrt{x}+y=7$, $\sqrt{y}+x=11$


sed couldn't flush stdout no space left on device?

sed in-place line deletion on full filesystem?


Boot goes straight into Windows 7 after installing Ubuntu, how do I get back into Ubuntu and get the option of either at start up?


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


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


Smooth reload of uitableview data when rows are deleted


Using javascript, is it possible to copy to clipboard in Firefox, Chrome?

How do I copy to the clipboard in JavaScript?


Strange problem with different versions of bash (or sudo)?

How do Ubuntu and Debian manage $HOME for users with sudo privileges?


How do I add mobs to a team and make them passive to me?

How to make your player invincible / undetectable by zombies?


Adding monsters to party. How to balance challenge rating.

Determining "level" of an NPC ally for purpose of budgeting encounter XP


How did the Witch-king defeat Arnor so easily?

Clear some doubts and questions about the Witch-king of Angmar


How can I take on-device screenshots of "secure" apps?


Finite degree field extension is a simple extension iff there are only finitely many intermediate fields.

A finite extension with finitely many intermediate fields is simple


How to set up/configure a VNC server to show running applications

How to setup x11vnc to access with graphical login screen?


Characterization of integers which has a $2$-adic square root


How to import a template file with HTML markup to use for sending email notifications?


How can I change what keys on my keyboard do? (How can I create custom keyboard commands/shortcuts?)


A question based on analyticity of entire functions

If $|f(z)|\le |g(z)|$, can we say $f$ is constant?


I think this proof is a bit sloopy, but the idea works right? If $G/Z(G)$ is cyclic, then $G$ is abelian.


Subtract the date from current date javascript

How do I get the difference between two Dates in JavaScript?


Returns in java function parameters in easy way

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


If refraction slows down light, isn't it possible to hold light still?


Reputation shown for meta sites in site list dropdown is incorrect

Meta sites in "Your Communities" display different reputation


Can I use "To the memory of" for a place in the dedication part of a book?

What's the proper way to dedicate a paper with a "to the memory of"?


Not a duplicate - xampp not defaulting to index.php5, can I configure this?


Word for intelligence-kind (akin to humankind, but not homocentric)

What is a good word for all sentient races?


Running a bash script on double click does not have all environment variables

Is there a ".bashrc" equivalent file read by all shells?


Mac Software to Search / Replace within a Project

Do any OS X apps ease Search and Replace across multiple files?


Changing the Pro Tem moderators every X months/years

What recourse do I have if I believe a moderator has abused their privileges?


How can I populate a std::vector from a buffer and its size?

How to initialize std::vector from C-style array?


Resize vdi size doesn't work as supposed

Virtualbox: OS cannot use the new extended disk space (.vdi)


Closed form formula for $\sum\limits_{k=1}^n k^k$


Accessing WPF UserControl child element property


Does using code syntax for non-code content causes accessibility issues?

Inline Code Spans should not be used for emphasis, right?


How Is the Inertial Mass Different From the Gravitational Mass?

What's the difference between the five masses: inertial mass, gravitational mass, rest mass, invariant mass and relativistic mass?


2-and-a-half-year-old child refuses to take her food

What to do when 18 month old doesn't want her dinner?


checkall not working in second page in pagination

Event binding on dynamically created elements?


Adding Windows to GRUB list after resizing partitions


How does physics know something is spinning or rotating?

How does a spinning object "know" that it is spinning?


Powershell script to install an application from Microsoft Store

How do I install an app from Windows Store using Powershell


How do I return the response from an asynchronous call?


What happens to tailed beast if jinchuriki dies?

What will happen to the tailed beast if the jinchuruki is killed?


how to get dates in reverse order in php?


test class for controller with many if condition

How to write a unit-test / test class for trigger?


Eclipse PyDev - my build is clean yet I get Syntax Error at runtime

Python try...except comma vs 'as' in except


Exception when trying to create a trigger using SQLQuery

mysql jdbc driver does not support delimiters in triggers with multiple statements


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


Prove that $a \equiv b \mod n \implies\frac{a}{c} \equiv \frac{b}{c} \mod n$

Divisibility by 7 rule, and Congruence Arithmetic Laws


Wi-Fi not working on Lenovo ThinkPad E570 (Realtek RTL8821CE)


.fbx export why there are no materials or textures?


Make DIV extend in height to bottom of parent DIV


Errors about Kali Linux repository when I run apt-get update


Can AFNetworking return data synchronously (inside a block)?


Examples of creating a new animal species by humans

Why do the ancestors of birds still exist?


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


How to perform do-release-upgrade from 15.04 to 16.04 or later verions?

Can I skip over releases when upgrading?


Show that if $X \sim N(0,1)$ and $Y \sim N(0,1)$ then $\frac{X}{Y} \sim \mathcal{C}(0,1)$

Prove quotient of two $N(0,1)$ is $\text{Cauchy}(0,1)$


What does "speculative" exactly mean in philosophy?

What's so speculative in rationalists metaphysics?


How to debug through .NET Framework source code?

Step through .NET Framework Source Code?


Is the closed interval $[-\dfrac{\pi}{2}, \dfrac{\pi}{2}]$ homeomorphic to $\mathbb{R}$?

Prove that an open interval and a closed interval are not homeomorphic


Why can I see the output of background processes?


Carnot Cycle with adiabats crossing on $pV$ diagram


What's the book by Heinlein that contains all other books?

Story about criminal being "adjusted" which stops a man's commute


Refresh rate on flat screen VS refresh rate on cathodic screen

Does the refresh rate affect LCD screens?


Prove that the additive group $ℚ$ is not isomorphic with the multiplicative group $ℚ^*$.

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


How to validate an email address using a regular expression?


Can I make all viewable windows active (responsive to mouse clicks)?

macOS windows requiring an explicit click to make active, before UI elements inside can be clicked


pagestyle{fancy} will cause second page to have different alignment

fancyhdr plus fontsize 12pt causes varying vertical alignment of sections


Visual clues to copy link to specific answer i.e. include anchor in link


Ethical Problems Brought by Academic Paywalls

Is it ethical to obtain journal articles from places other than the publisher's official sites?


Why do I have Apple Developer tools in /private/var/folders? Can it be removed?

Can I delete files or folders from /private/var/folders/?


How do I go about finding some $f(x)$ that satisfies the following first-order DE?

First-order trigonometric differential equation


Using Amazon API/Webservice for search product by UPC barcode

Do the Amazon web service APIs support barcode/UPC queries?


What should my family do to notify SE if I die?


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


how to get duplicate column values in comma separated

Can I concatenate multiple MySQL rows into one field?


which is better to use #define or extern NSString *const in Objective C

Defining a globally accessible string in Objective-C


How to create a 3D logo in Adobe Illustrator?


c#..Space KeyDown and Space in a textBox

Best way to implement keyboard shortcuts in a Windows Forms application?


How can I recover erased images on a SanDisk Ultra Plus memory card?

How can I recover deleted photos from an SD Card?


Initializing a variable using default constructor


How to use use Regular Expression (RegEx) within Azure logic app


How to pass "this" to another object in javascript?

How do I pass the this context to a function?


When Bayesian estimator coincides with MLE

How does a uniform prior lead to the same estimates from maximum likelihood and mode of posterior?


How to create a simple cross eyed 3d plot


Why doesn't the tilde (~) expand inside double quotes?


What is the best method to test if a program exists for a shell script?


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


Parsing date/time string with timezone abbreviated name in Python?


How do you generate dynamic (parameterized) unit tests in Python?


How do I cross validate daily time series data


Why can static classes be initialized with the "new" keyword in Java?

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


Should I use the t-test or the Wilcoxon rank sum test given these qqplots and Shapiro-Wilk stats

How to choose between t-test or non-parametric test e.g. Wilcoxon in small samples


Explanation of Gallant-Lambert-Vanstone method / Endomorphism speedups


Is there any way to set up pin or password for a directory and file in ubuntu?


Reordering rows in tableView while not in editing mode

Reordering controls on UITableView while not in editing mode?


Database error: Attempt to invoke virtual method 'Cursor .getScene()' on a null object reference

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


Unable to submit C# code from compiler into SO


What is the meaningful difference between" backup/restore" and "detach/attach" in SQL Server?

SQL Server backup/restore vs. detach/attach


What's the difference between " classic"and "classical"?

Difference between "classical" and "classic"


UnboundLocalError on local variable when reassigned after first use


No network interfaces detected when installing Ubuntu Server on Mac Mini

Ubuntu 13.04 on Mac Mini 6,2 ethernet port Broadcom NetXtreme BCM57766 not detected


Is it possible to add an horizontal scroll bar to an html select box?

How to get horizontal scroll bar in select box in IE?


Changing attributes values of HTML elements with JavaScript

Can I use JavaScript to set the 'name' attribute?


Can someone help me understand this infinite product question?

Understanding $\sum_{x = 0}^y x = \frac{y(y + 1)}{2}$ in a step of a proof


Blender .fbx to unity. textures not working

.fbx export why there are no materials or textures?


Caching using MemoryCache not working in ASP.NET WEBI Delegating Handler


Is there a typical settings order before shooting?


NSDate isEqualToDate: not working - does it look at seconds and split seconds?


What tips and advice do you have for photographing the Aurora Borealis?


mid-level quality stock photography - adobe Stock vs iStock... or anyone else worth mentioning

Where are some good places to find royalty free stock images?


Interpretation of log-transformed regression (Y = LN(Y)) when the independent variable (X) is a percentage


Sample size for logistic regression with categorical independent variables


Doubt about backshift (reported speech) for events that are still on going

Facts in reported speech – to backshift or not


Intersection of a plane and a smooth surface (in 3D) is a curve

Transverse Manifolds. Intersection is a Manifold again.


Is there a shortcut command in Windows command prompt to get to the current user's home directory like there is in Linux?


I Need to Shrink My Database - I just freed a lot of space


I've found my software as cracked download on Internet, what to do?


What is color temperature and how does it affect my photography?


How can I draw a tangent ending smoothly in a circle?


How can I install Ubuntu on Windows 10 laptop with two hard drives on separate drives?

Dual Boot Windows 10 and Linux Ubuntu on Separate SSD


C and Java / Virtual machine code execution

How is Java platform-independent when it needs a JVM to run?


Unable to pass the argument to javascript function which is a variable of php script

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


Again Clicking event not working in jQuery. Why?

Event binding on dynamically created elements?


How to use helper/private methods with a .module file?


When I run Thread second time: java.lang.IllegalThreadStateException: Thread already started

Why does an IllegalThreadStateException occur when Thread.start is called again


How to *actually* make a multi USB bootable disk in a reliable way. Without ruining its USB mass storage capability


If I were to win the election, I would restore the vitality of downtown area


matplotlib.plot.show continues shows plots even the script finished

Is there a way to detach matplotlib plots so that the computation can continue?


How can I improve Ubuntu overall system performance?


What's the word for using the names of letters and numbers to sound out a word?

What are words called when they can be made from the sounds of letter names?


Keyword Driven Framework-Getting Error java.lang.NullPointerException

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


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


express tan(x) as a power series using maclauran's theorem.


What implementation properties of a hash function prevent safe truncation?

Do parts of a hash carry the properties of the entire hash?


how do i log into my computer using ubuntu


How to tell Mathematica that certain variables are real/imaginary, integer-valued, etc


Disable "feature" that leaves attribute values on space keypress

How do I stop Visual Studio 2013 jumping out of quotes when I type a space in web editor?


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


Selecting more than layer with polygon selection or select by location with different CRS in QGIS 2.18

Select features from different vector layers at once?


How do I parse command line arguments in Bash?


Is there a paradox lurking in Interstellar?

How could the human race be saved in Interstellar?


Null pointer exception in populating a treemap


How to convert `%xx` code in URL back to the corresponding UTF-8 character


apt install froze when uninstalling virtualbox


Why doesn't my "Nikkor AF" lens autofocus on my Nikon D3300?


PHP mail function doesn't complete sending of e-mail


Can I speak to my companion in the cantina in the Sith academy on Korriban?


Cannot add custom launcher to Ubuntu Dock ('Add to Favorites' option does not show up)


Community User deleted a question I answered

Why did community user delete this meta question where multiple answers had up votes?


Is it better to pass-by-value and then move-construct or to pass-by-reference and then copy-construct


Prove that $a^2 \equiv 4 \mod 3^m$ if and only if $a \equiv 2 \mod 3^m$ or $a \equiv −2 \mod 3^m$

If $x^2 \equiv y^2 \pmod {p^r}$, where $p$ is an odd prime not dividing $x$ or $y$ then $x \equiv \pm y \pmod {p^r}$


ConcurrentModificationException while trying to delete an item from ArrayList

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


Please help me kill nautilus on root window

How to stop nautilus managing desktop in unity


IndexOutOfBound and Null Object Reference

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


java.lang.NullPointerException error, how to fix?


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


Combine 2D images perpendicular to each other

Is there something like DensityPlot3D to visualize atomic orbitals?


Finding common denominator of a polynomial


Ambiguous definition of the set of Natural Number


Is there any tool or simulator for Topological quantum gates and circuits?


Existence of right inverse surjective continuous linear operator on Banach spaces

Surjective bounded operator in Banach spaces without bounded right-inverse


Syntax error on token ".", , expected: what does this mean, what am I doing wrong?


Where are the actual bytes located within DIMM modules in dual or multi-channel mode?

whats the difference between ganged and unganged memory on AMD Phenom?


Connect Tikz nodes via two parallel arrows


Python interpreter couldn't find the class variable


splitting a file with diff conflict markers into separate files

How to get mercurial to emit base revision of conflicted file as well as modified version?


Comparing cell value date to app script date


How can I remove these little artifacts from my rendered image?


How do I access an int array in another class in java?

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


php mail function goes straight to junk folder

Prevent sent emails treated as junk mails using php mail function


How to pass dynamic parameter to backing bean using EL 2.2 method expression?

Invoke direct methods or methods with arguments / variables / parameters in EL


Did hobbits go without shoes even in Caradhras?


Linux permission denied when make log message into file

sudo permission denied but su grants permission


How do I know which version of SBT I am running?


How to configure the number of workspaces in 18.04


In Eldritch Horror, how do you deal with cases when an event forces you to draw a condition card that you already have?


Which of the following polynomials has the greatest real root?

2018 AMC 12A Problem 21: Which of the given polynomials has the greatest real root?


How does one correctly interpret the behavior of the heat capacity of a charged black hole?


Place large image into a post to go full width of its container

How to increase media image scale limit?


Explanation of ceiling fan working principle

Calculating the capacitor values to control ceiling fan speed


How to keep footer at the bottom of the page and below content in AngularJS?

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


Using CSS to affect div style inside iframe


When your 10-year old boy says “It’s meta,” what does it mean? In what situation and of what sort of object they use this phrase?


I am trying to run a sample JDBC app on terminal, that takes input from command line

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


jQuery access element not yet loaded in DOM

Event binding on dynamically created elements?


Blender 2.93 Cycles render does not work


Brasero says it won't burn the CD because the file is too big, what's going on?


Show that there exist continuous functions $g(x)\leq f(x) \leq h(x)$ for all $x \in [0,1]$, and $\int_{0}^{1} (h(x)-g(x))dx < \epsilon$.

Approximating Riemann integrable functions


is it possible to achieve sitelinks and featured snippets other than waiting for google to list you down?

What are the most important things I need to do to encourage Google Sitelinks?


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


Getting rid of reflective artifacts when using Cycles


What is the best way to restrict website's direct access through node urls?

How do I hide nodes that shouldn't be directly accessed from users and search engines?


How to place labels under a vector layer?


Multidimensional Cantor diagonal argument for ordering infinite sets

Cardinality of the Cartesian Product of Two Equinumerous Infinite Sets


Access compilation element in web.config

Programmatically access the  section of a web.config?


"One in six people": plural or singular?


Does there exist a self-adjoint operator whose spectrum is just the continuous spectrum?

I want to find an example where the Spectrum is equal to the Continuous Spectrum in C[0,1]; $\sigma_c(A)=\sigma(A)$


Matrix inversion in the smoothing splines

Why is $B^TB+\lambda\Omega$ positive definite?


Can you help me with my capacity planning?


What is the difference between "till" and "until"?


I am currently working on a bot which shows value of anything how can I set value to 1 iif there are no args

What is the scope of variables in JavaScript?


How are new things added to the replicator?


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


How to guarantee existence of a finite field

Finite fields, existence of field of order $p^n$,proof help


Looping through string in XML format in C#


how to get python installed path from command line

Find where python is installed (if it isn't default dir)


Unable to find the Documentation in Xcode4


Why sudo passwd username keeps asking for the current password

Getting an "Authentication token manipulation" error when trying to change my user password


Java client/server issue sending objects over sockets

Java socket/serialization, object won't update


Find string and replace in whole database in oracle

Search All Fields In All Tables For A Specific Value (Oracle)


Direction of cross product of two vectors

Cross products/avoiding using your hand for the right hand rule in E and M


If incoming photons increase the mass and gravity of a black hole are they then some kind of source of gravity?

Does a photon exert a gravitational pull?


How to get the full path to php interpreter / binary without shell access


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


Frontend: Adding cell-type choices to the "Choose how to enter input" drop-down

Possible to include additional styles in context menu?


Regression analysis with binary independent variables

Only binary predictors -- ANOVA, regression, or other?


How to Explode string in mysql and get each value?

Can you split/explode a field in a MySQL query?


Question closed before I updated it. Do I need to just write a new one or just wait?


Recover files in Windows deleted with Windows Subsystem for Linux

How do I recover lost/inaccessible data from my storage device?


why is it always "on foot" not "on feet"?


Merge records depending on first three common columns and place the values which are uncommon in the last column as comma separated

Merge records depending on common columns and specify the values which are uncommon in the last column as comma separated


best practices to execute the almost the same command several times

Is there a difference between the '&&' and ';' symbols in a standard BASH terminal?


The square roots of different primes are linearly independent over the field of rationals


What's missing from the Xbox 360 version of Minecraft?

What features differ between the Xbox 360 and PC versions of Minecraft?


does a child under 2 need a passport for a Mexican domestic flight?

What documentation does a Mexican citizen need to fly domestically within Mexico?


Exercise with Doob's inequality (looks similar to kolmogorov inequality)

Optimizing $(X_{n}+c)^{2}$ to show that $P(\overline{X}_{n}\geq \lambda) \leq E(X_{n}^{2})/(EX_{n}^{2}+ \lambda^{2})$


How do I get all values of a foreach into a PHP variable?


Examples of bijective map from $\mathbb{R}^3\rightarrow \mathbb{R}$


What is the mathematical rigorous proof that L1 regularization will give sparse solution?

Why does the Lasso provide Variable Selection?


How do I install applications in Ubuntu?


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


Are Kryptonians affected by Kryptonite if Earth's sun turns red?

Why did Superman & Supergirl start to suffocate instantly when Luthor made our yellow Sun red?


How can i get my community Base URL in apex


How would I alter some rectangles to follow an existing curve

How to create this curved 90-degree-angle quickly


Equation of a line that is tangent to a curve at point


Javascript IE and getElementsByClassName problems

getElementsByClassName() doesn't work in old Internet Explorers like IE6, IE7, IE8


Pass the value of a variable to a function in Javascript


How to find rows that have maximum value?


How long will Ubuntu 13.04 be supported for?

Where can I find the status of the released versions of Ubuntu?


Directly adding data in MYSQL tables made through drupal

Sync +- 70 000 records from CSV into drupal


What is the rate at which the field of an electron spreads?


how to create composite primary key android


Using Position (which requires a pattern) in the same manner as Select (which requires a criterion)


How do I find this volume using triple integral?

Find the volume common to two circular cylinders, each with radius r, if the axes of the cylinders intersect at right angles. (using disk/washer)


Show that a convex function in $\mathbb{R}^n$ is differentiable

Convex function almost surely differentiable.


How to eliminate or get rid of black areas in Blender in Layout which does not let me see what I am working on

Gray cone obscuring/clipping the 3D Viewport


Equivalent of getBoundsZoomLevel() in gmaps api 3

Google Maps V3 - How to calculate the zoom level for a given bounds


What is the point of LTS releases if they contain outdated packages?

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


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


This, that and it for non-material objects


A continuous function on the real line such that the preimage of every point is either empty of has exactly 3 points

Function $f: \mathbb{R} \to \mathbb{R}$ that takes each value in $\mathbb{R}$ three times


Why is the cross-product of two vectors perpendicular to that plane?

Why is the direction of cross products of two vectors perpendicular to the plane?


Kubuntu refuses to upgrade "E: The repository 'http://ppa.launchpad.net/gezakovacs/ppa/ubuntu disco Release' does not have a Release file."

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


Will having multiple domains improve my seo?


Where can I check which difficulty bracket I'm in?


Can a character expend Hit Die while at 0 HP?

Can a zero-HP, unconscious and stable character be woken up prematurely?


How to get the number of processes waiting for CPU on Linux?


MySQL-how to make query for selecting opening recd issued closingbalance rate from two different table one is purchase and another is issued

What's the most efficient way to select the last n rows in a table without changing the table's structure?


Making an Interface in blender game engine


How to determine if Javascript object is an event?


Does salt do anything more for baked products than just add flavor?

Should you add some salt to flour when baking?


What's the possible reason why NPE is throwed when call CallVoidMethod with JNI in my situation

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


Limit of $\left(1+\frac{1}{\sqrt n}\right)^n$ as n tends to $\infty$

Elementary question about the limit $\big( 1 - \frac 1 {\sqrt n}\big )^n$, $n\to\infty$.


When will Ubuntu Touch be available for Xperia Tipo release

What hardware does Ubuntu Touch support?


java.lang.NullPointerException: null - when calling a getAttributes().contains(key)


What Causes Slanting Pointed Ice Spikes to Form?


Not able to install the vmware-workstation in Ubuntu 20.04.2 LTS (GNU/Linux 5.8.0-54-generic aarch64)

How can we run amd64 architecture on a raspberry pi 4?


Suppose a finite set $G$ is closed under associative product and that both cancellation laws hold in $G$. Prove $G$ must be a group.

A finite, cancellative semigroup is a group


Should I have flagged a question for moderator attention if it covered a "dodgy" topic?

Policy regarding questions related to unethical or "shady" practices


Can I run this on a usb hard drive on my desktop that is currently running windows xp I do not have enough space to partition my drive?


How to differentiate between mass and weight?

What is the difference between weight and mass?


HISTFILE env var unset within programs. Can I access it in any way?

Difference between shell variables which are exported and those which are not in bash


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


Unable to correct problems, you have held broken packages


Click not detected by dynamicly added jquery script

Event binding on dynamically created elements?


AndroidRuntimeException: requestFeature() must be called before adding content


Per-site Meta reputation updating... slowly

My "Meta" rep on Photo.SE differs from my main rep


Redshifting of Light and the expansion of the universe


Need to customize newdocset.aspx of document set in Sharepoint 2010


How to report an error if an item is missing in sequence in a list of lists

How to report an error if an element is missing in the list of lists


How to Change Inner text of xml file which having duplicate node using Xpath

edit xml file using c#,getting error invalid token


How to import CSV with addresses (no coordinates) into QGIS?

Exporting layer from Google My Maps as KML has no geometries


What does 100 % disk usage mean in Windows 10?

Windows 10 100% Disk Usage after Startup


What is the most concise way to insert or update a line?

Edit file based on existence of a string


Sequentially numbering within many row blocks of unequal length

Numbering rows within groups in a data frame


Not able to get all values from a table with selenium chrome webdriver using python

How to get text from an element , when getText fails


Is the one-dimensional Lie algebra L=C semisimple?

Is the 1-Dimensional Lie algebra Simple?


cant upload file in mysql database using php codeigniter


RecyclerView has refused to send data to the NextActivity

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


Why doesn't Stack Exchange pay users who contribute the most?

Is it alright to pay real money for useful help?


How do I reset a lost administrative password?


Could I use an hashing function for Symmetric encryption?

Is it feasible to build a stream cipher from a cryptographic hash function?


Event binding on dynamically created elements?


Replica set with 2 members, 1 hidden, yet primary sometimes becomes secondary

Primary replica set server goes secondary after secondary fails


A restricted view I can't turn off in Solid & Wireframe preview

Gray cone obscuring/clipping the 3D Viewport


Calculating charges from electric field diagram

Angle of electric field lines leaving a postive charge and entering a negative charge in dipole


How is the t value of a regression coefficient computed?

How are the standard errors of coefficients calculated in a regression?


If photons have no mass, how can they have momentum?


Solving the Ubuntu 12.04 Update Error: (-5 - No address associated with hostname)


what is the ideal buttons size for both ios and andriod

What is the optimum button size of touch screen applications?


iPhone always thinks headset is plugged in


Why do Ruby setters need "self." qualification within the class?


need to Create two variables and pass into next reqst using JSR223 post processor

For the provided string  how to Create a two variables and pass into next reqst


Allow suggesting more than one duplicate

Allow same user to add multiple links as possible duplicates


Cannot set VLC as default through Get Info

I want to make VLC my default player on Mac OS X 10.10.3


gnome-sushi doesn't work after upgrade to 19.04


Package transparent, tcolorbox and tikz incompability

Tikz and ctable incompatibility, gives error when printing


What is a native implementation in Java?


Weird commands in the book Eloquent JavaScript


NoClassDefFoundError when deploying dynamic web app from eclipse with jsf and tomcat 7.0


How can I demonstrate this series are the same?

How to prove the transformation formula for Jacobi classic theta function


Prove $G$ is cyclic if for every $n\in \Bbb{N}$, there are at most $n$ solutions to the equation $x^n=e$.

If $x^m=e$ has at most $m$ solutions for any $m\in \mathbb{N}$, then $G$ is cyclic


How do i remove mineral deposits from a toilet's rim jets?

How should I clean under the narrow toilet rim to restore full flush power?


Why doesn't bit shift work for -1 in java?

What are bitwise shift (bit-shift) operators and how do they work?


If an enemy monster charms one PC and tells them to attack a second PC, and then the second PC charms the monster, what happens?

Does a subsequent charm effect override a previous one?


WoeUSB Installation failed! Exit code: 256

WoeUSB Error Code 256 with NTFS formatted USB


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


Can the closure of isolated point set be uncountable

Example of a set $S$ that is countable, but the set of limit points is uncountable


Compulsory usage of if __name__=="__main__" in windows while using multiprocessing

python multiprocessing on windows, if __name__ == "__main__"


Fetching the latest N items by foreign key

Django: How to select a limited amount of rows for each foreign key?


How does squaring both sides of an equation lead to extraneous solutions?

Why can't you square both sides of an equation?


After editing a post in the first posts queue, I am switched to the suggested edits queue

Reviewing a suggested edit from a review queue jumps to the suggested edit queue


Why does this string with a pointer return a random set of symbols?

string array with garbage character at end


iOS 7: Force white text for clock/battery

How to change Status Bar text color in iOS


New messages flagged blue bubble does not go away


Broken packages and can't run -f install

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


Javascript: Forwarding function calls that take variable number of arguments

Passing arguments forward to another javascript function


How do I declare this type as a return value?

How can I return an anonymous type from a method?


JavaScript for loop returning "clean" when calling AJAX call

Why is using "for...in" for array iteration a bad idea?


What integrated blog comments/forums solutions exist beyond Vanilla Forums?


Regex PHP How To Match Inner Part of a String

Regex for getting information from square brackets


How to i Combine Front and back leaf Textures that is not alpha From Cgbookcase.com with Maps. on a Leaf plane front and back with two uv Map?

How can I make a material only apply to a side of a plane?


UTF-8 encoding problems in MySQL DB (php)


Issue with redundant if statements that can have multiple answers


Trigger to prevent duplication of records in Salesforce


How can we find a function such that $f'(x)=f(x+1)$?

How to solve differential equations of the form $f'(x) = f(x + a)$


Default constructor getting called while using virtual inheritance

Why is Default constructor called in virtual inheritance?


Command Line arguments handling on Visual C++ 2010

argv[1] contains only the first letter of the first command-line argument in Visual C++ 2010


What happens when static variable is declared twice?

Is it possible to declare multiple static variables with same name in a single C file?


Unexpected namespace prefix "xmlns" found for Linear Layout

Unexpected namespace prefix "xmlns" found for tag LinearLayout


Uniformly continuous functions on the interval

Every uniformly continuous real function has at most linear growth at infinity


Regex to convert a number to brazilian money with javascript

How to format numbers as currency strings


Test if there are files matching a pattern in order to execute a script


intentional and extensional set definition


How do I handle a PC trying to assassinate another?

Are there rules for called shots in D&D 4e?


Import KML to Postgis and preserve style

Importing KML and style information into Geoserver


Negative string index vs. result of unsuccessful `find`


Chrome: How to hide 1 particular tab in chrome?


Any idea about clarity only not whole effect

anyone tell how is this effect created which change lips color to orange and little orange on face without brush etc tool


JavaFX: How to know on which system application is running on?

How do I programmatically determine operating system in Java?


How many times do I have to roll a dice to get six six times in a row?

Time taken to hit a pattern of heads and tails in a series of coin-tosses


Auto-generate an interface implementation in C#?


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


Accommodating page numbers with narrow margins

numbers of pages don't appear on pdf printed


Concat speed of String is reduce after migrating to java11

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


How to include sorted navigation properties with Entity Framework


How to apply single material but to different and multiple objects?

Adding materials to more than one object


JSONObject : Why JSONObject changing the order of attributes


Why do we find eigen vectors of the co-variance matrix in PCA?

What is an intuitive explanation for how PCA turns from a geometric problem (with distances) to a linear algebra problem (with eigenvectors)?


If a mother's love can negate the effects of Avada Kedavra, is Harry the only wizard loved by his mum?

Is the Harry Potter Universe Loveless? (or short on it)


Blank space occur in the reputation summary in profile page

Profile Bug - Reputation Summary Not Displaying All Lines


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


About the integral of $\frac{\sin(ax)}{e^{2\pi x}-1}$ over the positive real line

Use rectangular contour to integrate $\int_{0}^{\infty}\frac{\sin(ax)}{e^{2\pi x}-1}dx$


Why have all the colors from the picture disappeared?


How to make Files use file-roller again?

How to make nautilus use file-roller in 17.10 like in 17.04?


Recover last argument of the last command in bash' vi mode

how to recall last argument in bash with vi setting


Getting “Command not found” when trying to execute mounted file

Getting "Not found" message when running a 32-bit binary on a 64-bit system


Javascript looping over properties with array value not returning expected

How do I enumerate the properties of a JavaScript object?


Why can't I see or buy the Karin Kuruma?


Carriage returns are prevent sed reading all my files

Wierd output using paste with serial option


How does melting of Antarctica's ice cause rise in sea level?

Does the sea level increase if an iceberg melts?


How to evaluate the performance of a simple java program?

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


Installing Ubuntu on Toshiba Satellite with Windows 8

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


Incompleteness of $(C[a,b], \| \cdot \|_1)$

Completeness of $\langle \mathscr{C} [0, 1], \| \cdot \|_1 \rangle$


How to make zenity "transient parent" warning disappear permanently

How do I suppress GtkDialog warnings in zenity and yad using Bash redirection in a script?


How do a black hole made from electrons produce EM field?

Detection of the Electric Charge of a Black Hole


How to check if file is empty or it has only blank characters?


What is the difference between JavaScript and jQuery?


condition number of a matrix with diagonal ones and constant else.

Find the eigenvalues of a matrix with ones in the diagonal, and all the other elements equal


How to let table stay in example environment?

Keeping tables/figures close to where they are mentioned


Why must unexposed and undeveloped film be handled in total darkness?


Which one is correct in a sentence: "Thanks, name" or "Thanks name,"

Do I need a comma when addressing someone in writing?


How to re-register (or remove) an existing Mongoose schema/model?

How do you remove a model from mongoose?


Find an example of a commutatice unital ring $R$ and an $R$-module such that $\text{Ass}(M)=\emptyset$

Example of a non-zero module that has no associated primes


Find the primes $p$ such that $\frac{2^{p-1}-1}{p}$ is a square number.

Find all primes $p$ such that $(2^{p-1}-1)/p$ is a perfect square


Android app forced close when Internet is not available

App crashes if question is reloaded without data connection


How to solve 'Connection refused' errors in SSH connection?


Ridge regression in Matlab produces different results than direct calculation

Confused by MATLAB's implementation of ridge


How do "we" get a custom warning when asking a question on a Stack Exchange site?

What's the protocol for requesting a tag warning?


If $X$ and $Y$ are independent. How about $X^2$ and $Y$? And how about $f(X)$ and $g(Y)$?

Are squares of independent random variables independent?


How to run updmap-sys after installing cm-super?


My code will run without errors but it will not display

Python/Pygame adding a title screen with a button


Can some one tell me what can detect the accurate gas electric conductivity?


How to switch off "natural" sort order in Finder and enable pure alphabetical sort order?

How does finder sort folders when they contain digits and characters?


Does visiting Canada from USA under ESTA reset the visa waiver?

How can I re-enter the US after time in Canada on the VWP?


How do I tell Chrome to stop auto completing to a website?

How to remove an entry from Chrome's Remembered URLs from the url bar?


How to denote number of summands below the expression?

Typesetting 144...4 with "n times" under the 4's is easy, but what about \sqrt{144...4}?


Why do I not get a p-value and F value from ANOVA in R?


I have a somewhat silly question about pressure and atmosphere


Hibernate :"detached entity passed to persist" error

"detached entity passed to persist error" with JPA/EJB code


/testfor item in item frame help with code

Why is my command throwing a 'data tag parsing failed' error?


Pick list value from open to pending on lead object

Create a workflow rule when Lead status is changed from X to Y


USB drive encrypted with VeraCrypt on Windows doesn't automount on Ubuntu

What is the recommended way to use VeraCrypt in Ubuntu?


How do I improve Happiness in my Fallout Shelter?

How can I increase my Vault Dweller's Happiness?


find {} returns the full filename but I just want the filename without the extension, so index.md would return index instead of index.md


Move Outlook items after certain amount of time


Do I really need to add "useless" questions in order to interact?

What can I do when getting "We are no longer accepting questions/answers from this account"?


Pushforward of a degree $d$ map $f: \mathbb{P}^1 \to \mathbb{P}^n$

Relation between different definitions of degree in complex geometry


How to correctly tell the cumulative probability of a 3sf value from a 2sf normal dist. table?

What do the remaining columns (after column 2) in a Z table mean


What is the easiest way for me to download all my questions+answers across all Stack Exchange sites?


How can I simplify $\log(512)$ to $9\log(2)$?


NullPointerException in array of class Hut

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


How do you put a circle on top of an exponential symbol

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


Why is 'true instanceof Boolean' equal to false in JavaScript

Why does instanceof return false for some literals?


Opening up the terminal on a Mac always starts a PHP process

Terminal new window always shows -bash: Searching: command not found


MariaDB is Forgetting Previous Auto Increment IDs

MySql autoincrement counter resetting after server restart


In SQL Server is a FAST_FORWARD cursor DYNAMIC by default?


Why does an object with a glossy shader render in black?


How can I make the name of a website to appear in bibliography?

Using a 'corporate author' in the "author" field of a bibliographic entry (spelling out the name in full)


E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages


Looking for title of a sci-fi story about a one-way space journey

Story featuring smart people sent on a space mission to nowhere


Are two objects equivalent in a category when their hom sets are isomorphic?

Isomorphism of hom sets implies objects are isomorphic


Why does 1 vector $\vec{v_1}$ in $\mathbb{R}^n$ that is linearly independent imply that $\vec{v_1} \neq \vec{0}$?

Prove that any set of vectors $S \subset \mathbb{R}^n$ containing the zero vector cannot be linearly independent


Basic Web Development IDE/Editor like Dreamweaver?


can I use a 5400mAh battery in my Toshiba L40-17m laptop?

Is it safe to replace a 4400mAh laptop battery with a 8800mAh battery?


Evaluate the integral: $\int_{0}^{1} \frac{\ln(x+1)}{x^2+1} \mathrm dx$


How to remove the login swipe screen using Registry edits in Win 8.1

How to skip the Windows 8 lock screen image?


Collections sort(List,Comparator) method example


What means "equal" in Euclid 4th postulate?

All right angles are equal to each other


If $K \leq H \leq G$, show that $[G:K] = [G:H][H:K]$.


How to make the rendering process less resource consuming

How to stop Blender from making the CPU overheat?


questions about the nested loop on array

List of lists changes reflected across sublists unexpectedly


C++ compiling on Windows and Linux: ifdef switch

How do I check OS with a preprocessor directive?


Android Studio new project shows Runtime exception error


Postfix: How to block sending emails from and too valid email addresses via telnet?

Postfix acting like an open relay for domain mailboxes


How obtain the n-th derivative of a function with an implicit variable?

Can we teach Mathematica about functional differentiation?


i need to know more about passport issues

Is it okay to have two different passports of the same country with same photo but different names?


How to insert close button in popover for Bootstrap


Is there a way to run multiple iOS Simulators at once?

Is there a way to simulate multiple iphones using xcode/iphone sim?


What if both null hypothesis and alternative hypothesis are wrong?

Do null and alternative hypotheses have to be exhaustive or not?


If x is an odd number, how to prove $x^2=8y+1$?

If $n$ is an odd natural number, then $8$ divides $n^{2}-1$


how to download and Install Latex on Ubuntu 15.04?


What is the fastest way to count all set bits?

How to count the number of set bits in a 32-bit integer?


Can I see total votes on mobile website?

Show the number of up-votes and down-votes on the mobile site theme


How to solve this equation $x^{2}=2^{x}$?


Grub rescue after trying a reinstall (parallel boot with Windows 7)

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


Proof that $\sum\limits_{i=1}^\infty \frac{i}{(i+1)!} = 1$


How do I make a 8 meters(W) X 4 meters (H) banner on Photoshop?

What resolution should a large format artwork for print be?


Is synapse application launcher available?


How to set a path variable without root acess?

What's the best distro/shell-agnostic way to set environment variables?


Better explanation of the common general relativity illustration (stretched sheet of fabric)


Subdivide loop at custom position without stretching the texture


Unable to correct problems, you have held broken packages


Can the application know whether the Home button or the Power button was pressed?

Is it possible to distinguish between locking the device and sending an app to background?


Is it possible to find users within a geographical location

Finding Stack Overflow/Exchange users based on geographic area?


hide text between normal text without bad effect on search engine

How bad is it to use display: none in CSS?


An object reference is required for the non-static field, method, or property System Entity

CS0120: An object reference is required for the nonstatic field, method, or property 'foo'


Why can't I access a USB flash drive? And why does it slow down my computerr?

How do I recover files from an USB flash drive?


Gparted -Ubuntu Is Using all of my disk and will not allow resizing. For Dual Boot


Why doesn't an electron's charge rip the electron apart?

If like charges repel, why doesn't a charge break itself apart?


Different PATH formats for .bash_profile


Symmetric difference and approximation of measure

Approximating a $\sigma$-algebra by a generating algebra


What possessive forms are used for mutual 1st person ownership?


Secure an Ubuntu OpenSSH server from Brute force attacks but without a firewall or SSH key pair?


How to get the class name that fired an Activity?


MySQL not inserting data from Eclipse to database

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


Undo file removed by rm commend on MAC terminal


How to roll back Ubuntu to a previous version?


Javascript - Create a method dynamically?

JavaScript closure inside loops – simple practical example


Show that $12n+5$ and $5n-2$ are relatively prime for all $n$ (in $\mathbb{Z}$)

Idea behind proof that $\frac{21n+4}{14n+3}$ is irreducible for all $n$


Let $f:K\to K$ with $\|f(x)-f(y)\|\geq ||x-y||$ for all $x,y$. Show that equality holds and that $f$ is surjective.

Can this intuition give a proof that an isometry $f:X \to X$ is surjective for compact metric space $X$?


How can I change what keys on my keyboard do? (How can I create custom keyboard commands/shortcuts?)


How to disable administrative share C$ only to some computers or users

Group Policy: Block access to \\localhost\C$


difference between bash, -bash and /bin/bash in ps output

Difference between Login Shell and Non-Login Shell?


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


How to handle triangle in PDE to do separation of variables?

Using separation of variables to solve the wave equation


Mass deleting email from an iPhone/iPad?

iOS iPhone/iPad Mail - rapid mass delete/delete all


Lazy Method for Reading Big File in Python?


How does a Melee Spell Attack work if you are already touching your target (not fighting edition)

How does a Melee Spell Attack work if you are already touching your target?


How to speed up import of large csv table?

Speeding up Import and Export in CSV format


Suitability of topology book for self-study


fontspec error with Urdu in LuaLaTeX / XeLaTeX


Error getting in button click event in android

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


How do I search for non-deleted questions in data.stackexchange.com?

Is the Data Explorer now updated weekly?


Laravel: After I upload files into server special character showing (Black Question Mark)


Little number for reviews available, but I've used up my 20/day

Don't show pending suggested edits to me after I run out of votes


What Cartoon had a guy turn into monsters from cards

Cartoon about a group of teenagers whose souls travel to multiple worlds with monsters


Android: best way for user to choose from 100s of options

What is the best way to allow a user to select one value from a list of potentially hundreds?


Cannot get data from h:inputText inside h:dataTable

Using  on a List doesn't update model values


Copying files from my /home in a rescue boot shell on VirtualBox

How do I reset a lost administrative password?


UTF encoding method for persion support in PHP


Solve $\lim_{x\to 0} \frac{\sin x-x}{x^3}$


Difference between "did + verb" and just "verb+ed"


Denseness of the set $\{ m+n\alpha : m\in\mathbb{N},n\in\mathbb{Z}\}$ with $\alpha$ irrational

For an irrational number $\alpha$, prove that the set $\{a+b\alpha: a,b\in \mathbb{Z}\}$ is dense in $\mathbb R$


Servers with 24 NVMe drives - read throughput

Can you help me with my capacity planning?


No texture on mesh after import from mesh lab

.fbx export why there are no materials or textures?


Upgrade from 8.04 to 10.04, "no release found"

Distribution upgrade problem "No new release found"


Why tags stats are not getting updated after script was supposed to run

Tag info not updated regularly on profile?


Why does python exception behavior depend on argv[0]?

Python won't exit when called with absolute path from cron or subshell


Using cURL command-line tool on Mac, how does one fetch stock data which comes back *without* commas?

Using the cURL command, how does one fetch stock data which comes back *without* commas and spaces?


Is there an equivalent to $A.get("$Browser.formFactor") in LWC?


Why didn't Ingrid grow up in Storybrooke but Henry did?

Why did Henry age in Once Upon a Time while others did not? And why didn't anyone notice?


What happens if I supply a higher voltage than the rated voltage of my jack?

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


Faces appear to have an underlying mesh in edit mode


South African passport holder traveling via Heathow to Ireland

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


Determine if $h(x)=\sin(x^2)$ is uniformly continuous on $(-\infty,\infty)$

Prove that the function$\ f(x)=\sin(x^2)$ is not uniformly continuous on the domain $\mathbb{R}$.


"every continuous map to a Haudorff space is closed" characterize normal compact set?

A $T_4$ space satisfying that 'every continuous map from it to a Hausdorff space is a closed map' is compact.


Why is the kilogram the last SI unit which is defined in terms of a physical prototype?

Why do we still not have an exact (constants-based) definition for a kilogram?


App crash because of NullPointerException

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


What is a "rail system"? What about rods?


How do I copy data from Command Prompt in Windows 7?

How to copy text in the Windows command line 'cmd'?


Does the synchronizedMap method in Collections synchronize both read and write operations

What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?


What are the eigenvalues of $X = xx^{T}, x\in\mathbb{R}^{d}$?

Eigenvalues of the rank one matrix $uv^T$


Custom keyboard shortcut to lauch a terminal and run a command without exit in the end

How to run a script without closing the terminal?


TCP DOS: How to terminate CLOSE_WAIT connections?


How to find multiple max value items in a list

How to find the max number(s) in a list with tied numbers


Key combination to switch language in Lubuntu?

How to change keyboard layout in Lubuntu 15.10?


Unexpected Behaviour at Plotting Floor with Plot


Issue with "CDbl" function while subtract values of two textboxes


How to split a new window horizontally but keep both windows the same width?

How to change size of split screen emacs windows?


Extracting vertices data after transformations

How do I get the deformed coordinate of a vertex with Python?


Speed of light on and through a hollow planet


All combinations of items in N arrays in C#


MySQL. Multiple information into one row

Can I concatenate multiple MySQL rows into one field?


Unable to post on meta after a certain number of downvotes

Down votes should not have any side effect, on meta


How does time dilation occur due to velocity and gravity


Evaluate $\int\frac{\sqrt {25 - x^2}}{ x^4}$

Integrate $\int \frac{25 - x^2}{x^4} \operatorname d\!x$


How long should I quick soak my dry black beans?

How long can I store soaked beans before cooking?


Citizen Patrol Badge wasn't rescinded when the flag was retracted - shouldn't it be?

Citizen Patrol badge - Is it action been taken?


NullPointerException on adding strings to TreeSet

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


Looking for a data structure which provides both random and "sequential" access

In which scenario do I use a particular STL container?


Compute $\sum\limits_{n=0}^{\infty}\frac{1}{(2n+1) . 4^n} $


Blender multilayer EXR to Photoshop, how to set up my layers to obtain the final image?

Combine Cycles passes in way compatible with photoshop


Is there a formal definition of what a significant figure really is?


What USB drive filesystem works out of the box on Windows, Linux, and OS X?


Enable to see vote counts on the mobile app

View number of 'Up' and 'Down' Votes of a question/answer - Android App


Identifying anomalies in spatial (latitude, longitude, time) data?

Unsupervised learning for anomaly detection


Single link in (Author, Year) citation style using natbib and hyperref


How to handle double quotes in string before XPath evaluation?


How do I make a tab on a tabcontrol disappear?


Why do elements included in JQ .load method lose all JS capability

Event binding on dynamically created elements?


Vertically align text within Objects in Illustrator

Align text in exact center (vertically and horizontally) without creating outlines?


Is this seven or eight consecutive roads in catan?

In Catan, can you continue a "circular" road?


How can objects with no net acceleration gain energy?

When you lift a box from the floor, the potential energy changes but kinetic energy does not change. Does it violate conservation of energy?


If α is a unit in $\mathbb{Z}[\sqrt2]$ then $a^2 - 2b^2 = \pm1$


Difference between the following two class implementations

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


Is there a method in C# to check if a string is a valid identifier

How to determine if a string is a valid variable name?


How can I randomly distribute objects in Illustrator?

How to make random dots in different sizes and spaces between the dots in Illustrator?


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


Empty files can't be valid archives when running sudo apt update

16.04 Upgrade: Failed to fetch Empty files can't be valid archives


Is it possible to run 32bit (non install) software on 64bit Windows 8.1 Pro?

How do I get 16-bit programs to work on a 64-bit Windows?


Add different materials to different parts of a mesh?


what Error Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a null object reference


What is intuition behind the product rule of probability and independent events?

Need intuition about independence of events


Should "I'm not a native English speaker" lines be removed?

How to tackle "i don't speak english properly, please excuse" kind of questions


Find the area lying inside the circle $r=a \sin \theta$ and outside the cardioid $r=a(1-\cos \theta)$.

Help understanding a concept in multiple integrals


How do i hang shelving on drywall over concrete

How do I install a coat rack on drywall over concrete?


Sufficient and necessary condition for a linear map to be a scalar multiplication

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


How is winter time in Busan, South Korea?

How can I find out what the weather is like in a given location on a certain month?


Correct alignment of multiple-line inequality


Extracting elevation data from DEM files using QGIS

Producing CSV file from .tif file with elevation data


Adobe Air error when installing Scratch 2

How to install Scratch 2 on Ubuntu 16.10. or 17.04 (64bit)?


How to remove the cap of a sphere in and chose the side where it cuts

Cutting a section from a sphere by planes


How can I pass selected row to commandLink inside dataTable or ui:repeat?


for a CSS File --> http status 404 - the requested resource is not available

How to reference CSS / JS / image resource in Facelets template?


Is it true that $(I\cap J)^n=I^n\cap J^n$

Example of two prime ideals whose intersection of the squares not equal to the square of the intersection


How do I remove icon from title bar of Terminal window?

Remove app icon from title bar in GNOME in Ubuntu 18.04


How to convert any time in yyyy-mm-dd hh:mi:ss.mmm to yyyy-mm-dd hh 00:00:00.000

Best approach to remove time part of datetime in SQL Server


How to reveal a folder in explorer from terminal

How to open Nautilus at current command line directory?


how to deploy only the Commit - continuous integration?

Customizing Package.xml for updating Sandboxes with Continuous Integration


How to redirect output of an already running process

Redirect STDERR / STDOUT of a process AFTER it's been started, using command line?


Capital ẞ in LaTeX/XeTeX/lualatex/whatever


How can I make my for loop execute tasks completely before going on to the next iteration?

System.out.println and System.err.println out of order


How can I make named pipes atomic or is there an alternative?

Performing atomic write operations in a file in bash


False proof? If $f: G \rightarrow H$ homomorphism, and $H$ abelian, then $G$ abelian?

proof verification: If $f:G \rightarrow H$ is group homomorphism, and $H$ is abelian, then $G$ is abelian


Python idiom to chain (flatten) an infinite iterable of finite iterables?


Change list to set without changing order of elements

How do you remove duplicates from a list whilst preserving order?


How to calculate the product if the product is too large to be represented?


Semplification using Vandermonde determinant


Sed error replacing partial string with variable

Replace strings in a file based on a list of strings and a list of corresponding replacements


Java - getting a random number from 100 to 999

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


Javascript 0 == '0'. Explain this example

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


Are workstation monitors safe to pack in checked luggage?

Can I take a 24" computer monitor on board?


Alternative virtual machine to run Ubuntu on Mac OS as Virtual box is giving issues?


any Tex template for this arxiv article?


Why do some webpages print nicer than others?

How can I have different CSS when I print or print preview?


Let A be a subset of {1, 2, 3 ... 2n-1, 2n} containing n + 1 elements. (Full Question below)

Using Pigeonhole Principle to prove two numbers in a subset of $[2n]$ divide each other


Python error that shouldn't be happening

UnboundLocalError on local variable when reassigned after first use


Is there a way to see the variables declared in a session in Python?

Enumerate or list all variables in a program of [your favorite language here]


If k-folds cross-validation gives k models, how can we decide which to use?

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


Which fonts support Cyrillic letters in TexLive?

What fonts are compatible with T2A (Cyrillic) encoding?


How to include '\' character in a javascript string

Escaping backslash in string - javascript


How can I delete game data on iPhone 5? I want to start it over

How do I delete data for one game in the iPad Game Center?


Is sudo required for installing VMware Tools?


Firebase RecyclerView Adapter Nullpointer exception

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


A strange straight horizontal line is appearing in the plot


How can I create an bootable USB stick on Win7-32bit machine?

How do you create a bootable USB stick using windows 7


How do we find the antiderivative of $x^x$


Jsoup: String element.attr() doesn't work in if()


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


Let $G$ be a group and $g \in G$. Show that $o(g)=o(xgx^{-1})$, where $o(x)$ is the order.

Prove that any conjugate of $a$ has the same order as $a$.


What hardware does Ubuntu Touch support?


Should SO rep be considered in SU and SF?


In Java, how can I convert an InputStream into a byte array (byte[])?

Convert InputStream to byte array in Java


Possible to create new Application Handler?


What does the red R in old manual lenses mean?

What do the red values mean on the distance scale of a lens?


Getting unique ClientID from chrome extension?


How can i shorten long multiple checking variable in bash?

How do I parse command line arguments in Bash?


Make continuous 3D tube out of 2D image (Mathematica 8)

How to extrude a 3D image from a binary 2D image


Get named Vector values with non-unique names


How to use JQuery's .click function for a PHP generated table

Event binding on dynamically created elements?


How can I change an element's class with JavaScript?


prove that for a sequence $a_n$ from $n=1$ to $\infty$ that if the sum is less than infinity then $a_n$ tends to 0

If a series converges, then the sequence of terms converges to $0$.


$\lim _{n \rightarrow \infty}\left[(n+1) \int_{0}^{1} x^{n} \ln (1+x) d x\right]$

Find the value of : $\lim_{n\to\infty}[(n+1)\int_{0}^{1}x^{n}\ln(1+x)dx]$.


More intuitive way of obtaining direct link to specific comment

Improve the usability/intuitiveness of direct comment links


can't execute controller method after loading fxml document

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


Why my program is not running and throwing an "Exception in thread "main" java.lang.NullPointerException"


Atoms do not have colour, but objects which are nothing but the assembly of atoms have colour! How is that possible?


Alt + Tab to show all instances of an application?

How do I easily switch between windows rather than applications in GNOME Shell?


Ubuntu 18.04 sudo apt update doesn't work (Failed to Fetch)

apt-get update fails to fetch files, “Temporary failure resolving …” error


How to make Excel retain the contents of its clipboard

Prevent Excel from clearing copied data for pasting, after certain operations, without Office clipboard


Is it possible for a substance to be lighter than air in a liquid state?

Is it possible to have a Gas heavier than a liquid?


Google Chrome file downloads : Download file size not displayed

Why do some downloading files not know their own size?


What is the application/use to know about the order and degree of a differential equation?


Prevent questions with movie/tv shows/game spoilers from appearing in the hot questions list


Improving the Global Network Auto-Login experience

Global auth is dead! Long live universal login


How to know if 'uncouthed' is a word or not?

Can one ever say for certain a word does not exist?


How can I tell what RAM will fit my computer?


Is there a standard as to how many meters or feet if a GPS number (latitude and longitude) is off by a tiny amount, such as 0.0001?

Measuring accuracy of latitude and longitude?


Is Stack Exchange network slowly falling apart?

Is it possible we've got too many Stack Exchange sites/categories?


"Low Memory Space" but my space is plenty

"Insufficient storage" when trying to install new app


Using expressions in Plot with Manipulate

How are parameters evaluated for a Plot in Manipulate


Struggling to rotate in the correct axis It seems simple but gets strange when I keyframe

How do I rotate an object along it's own axis (windmill)


ERROR running force:source:pull: Entity of type 'CustomApplication' named 'Contact' cannot be found

SFDX Pull error: Entity of type 'ListView' named XXX cannot be found


Sci-Fi Novel - Humans are slaves to aliens who enjoy intoxication, circa 1985-ish

Novel about alien conquerers who conduct games to select servants


What exactly is critical value in statistics? I confuse it with p-value and always get it wrong


How do I run an application with arguments from the command line without losing the terminal?


Folder upload over the network with Absolute path

What is the best way to upload a folder to a website?


Best way to start investing, for a young person just starting their career in Europe?

How should I invest my money as a young graduate in Europe?


Proving this integral to be 0 in complex analysis


How to reinstall Windows 10 on new hard disk


Understanding the asterisk "*" in functions/parameters

Placement of the asterisk in pointer declarations


{w| w ∈ {a, b} * is not a palindrome} Prove this language is not regular.

Prove that the set of palindromes are not regular languages using the pumping lemma.


Deleting custom post types , custom taxonomies and their data on unistalling

How to delete custom taxonomy terms in plugin's uninstall.php?


Continuity of differentiable function $x^2\sin(1/x)$


How can I return larger-than-normal UI text to its original size?

How to fix icons and text in programs that suddenly enlarged, on Windows 8.1?


How exactly is the stoppage time determined?

Does stoppage time actually equal all non-playing time during a half?


android how an EditText work as AutoComplete


What is the template syntax for an arbitrary container of doubles?

What are some uses of template template parameters?


Force all values in a dictionary to be unique?

Getting multiple keys of specified value of a generic Dictionary?


Limit memory usage for a single Linux process


Why was theory of cosmic aether discarded?

The Higgs field a new Luminiferous aether?


Getting a Major Math Result Published and Noticed by Professional Mathematicians

I believe I have solved a famous open problem. How do I convince people in the field that I am not a crank?


How can I get past hitting "Continue" over and over?

Reset file and folder permissions of external hard drive data to default in Windows 7


ubuntu 20.04: cannot install bcmwl-kernel-source

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


Why there is no value for $x$ if $|x| = -1$?

Is there a number whose absolute value is negative?


Using a non-centralized structure for tex files - similar to \graphicspath


make error while compiling foreign application


How to highlight last div with specific css-class , if the number of div with specific class is unknown?

How to highlight last html-element with specific css class


What are the pros and cons of being co-supervised?


How long can cooked potatoes last in an air-tight container at room temperature?

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


Does the "Rapier Training" Swashbuckler class feature count as having the Improved Critical feat?

Do the benefits of a feat granted by a class count as that feat?


Recursive cast from SimpleXMLObject to Array


How does Linux handle multiple consecutive path separators (/home////username///file)?


Move focus between buttons in confirm dialogs OS X Yosemite 10.10.3

How can I switch dialog buttons using the keyboard?


Applying for a PhD before or after finishing master's

Apply for PhD before finishing my Master's degree


How can I left-align the text in a TikZ node


Can I skip over releases when upgrading?


number of non-zero, distinct, eigen values

Finding the null space of symmetric matrix generated by outer product


Forgot encryption password, too many wrong password attempts = wipe: Can I image my phone to "get more password tries" by restoring an image?

Is there a way to do Nandroid backup directly to pc and then restore it directly from pc also?


virtual destructor for pure abstract class


What is meant by multicollinearity does not influence the predictive power of the model?

Why doesn't collinearity affect the predictions?


Is $[\mathbb{Q}(x, y):\mathbb{Q}] = 2^r$ a sufficient condition for a point $(x, y) \in \mathbb{R}^2$ to be constructible by ruler and compass?

Let $F$ be a Galois extension over $\mathbb{Q}$ with $[F:\mathbb{Q}]=2^n$, then all elements in $F$ are constructible


Generating a identical probability distribution on each run of a test

Consistently create same random numpy array


Read simple XML file and save values into variable

XML Parsing - Read a Simple XML File and Retrieve Values


How do I invoke a Java method when given the method name as a string?


\begin{subfigure} & \captionof: Main figure counter incremented twice per figure


What foods are safe to leave in the car over a long period of time?

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


If $x^n + a_{n-1}x^{n-1} + ... + a_0 = 0$ has a rational root, then such root is an integer

Proving Gauss' polynomial theorem (Rational Root Test)


What might be a flavor substitution for someone with an onion allergy?


Default constructor being called by derived class

What are the rules for calling the base class constructor?


Dubai (UAE) visa requirements when staying in the airport for a French citizen?

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


Comparing getString(getColumnIndex()) to String


Open a file with spaces in the name in Terminal

How to cd to a directory with a name containing spaces in bash?


How to update constraints on cell after I set editing on table to true?

Can you animate a height change on a UITableViewCell when selected?


Insert a GIF file in a beamer presentation

Getting GIF and/or moving images into a LaTeX presentation


What are some uses of template template parameters?


How do I install applications in Ubuntu?


Why do some users have username "user########"?


How do you convert a stringed dictionary to a Python dictionary?

Convert a String representation of a Dictionary to a dictionary?


What do truncated histogram spikes indicate?

What does it mean if the main peak of my Histogram is beyond the top of the chart?


Proper way of converting string to long int in PHP

What's the maximum value for an int in PHP?


how to copy one workbook sheet to another workbook sheet using apache POI and java


How do I set executable permissions on a removable drive?


Can autoshrink permanently damage a database?


Why does a helium filled balloon move forward in a car when the car is accelerating?


How do I load the contents of a text file into a javascript variable?


Do steeds summoned with Find Greater Steed have other options than the usual control rules during mounted combat?

Is a pegasus summoned by Find Greater Steed controlled or independent when mounted?


How to create a desktop shortcut in Unity?


Permanently assign a different keyboard layout

How to permanently assign a different keyboard layout to a USB keyboard?


What's an alternative to Truecrypt with exact same feature set?

Is there a tool to encrypt a file or directory?


Listing a countable set in ascending order

Show that it is impossible to list the rational numbers in increasing order


Find general solution for $\tan{x} +\tan{2x} +\tan{3x}= 0$

Finding solution of a Trigonometric equation


real numbers of the form $\frac{m}{10^n} $ with $m,n \in \mathbb{Z} $ and $n \geq 0$ is dense in $\mathbb{R}$ .

Is $\{\frac{m}{10^n}\mid m,n\in\mathbb Z,\ n\geq 0\}$ dense in $\mathbb R$?


MultiThreading from same Textbox doing website request

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


Mathematica syntax with combined Prefix and Times operator: @*

What are the most common pitfalls awaiting new users?


Hidden filenames are too faint to read in Finder

Can't read filenames in save dialog box. Names are too faint


Logical Fallacy? "You drive, therefore you use fossil fuels"

Is "you're part of the problem" a logical fallacy?


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


Terminating app due to uncaught exception 'NSUnknownKeyException' - error

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


Saving bitmap in sharedpreferences, Out of memory

Strange OutOfMemory issue while loading an image to a Bitmap object


Proving $1 + 2 + 2^2+2^3 + 2^4 + \dots+ 2^{n-1}= 2^n -1$ using mathematical induction

Prove by induction. How do I prove $\sum\limits_{i=0}^n2^i=2^{n+1}-1$ with induction?


How can I call a javascript constructor using call or apply?

Use of .apply() with 'new' operator. Is this possible?


libmng.so.1: cannot open shared object file: No such file or directory

How to solve missing libmng.so.1 in Trusty (14.04) Package is no more available


Can I create a common include file in HTML?


Formula for the $1\cdot 2 + 2\cdot 3 + 3\cdot 4+\ldots + n\cdot (n+1)$ sum


Mouse cursor flickering and disappearing


If an observer changes their velocity, is it equivalent to a momentum shift?

Galilean covariance of the Schrodinger equation


How to alter my JLabel based on input from a separate class

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


How to deactivate internet search result in unity panel Ubuntu 14.04 LTS

How to permanently turn off online results


A question regarding convergence of a series

If $a_n$ is a strictly increasing unbounded sequence, does $\sum_n \frac{a_{n+1} - a_n}{a_n}$ diverge?


How can I remove ImageMagick from Ubuntu Unity Dash?

How can I stop certain apps from appearing in the Dash?


Show that arithmetic mean of numbers obtained is $\frac{n+1}{r+1}$

Consider the smallest number in each of the $n\choose r$ subsets (of size $r$) of $S=\{1,2,\ldots,n\}$...


Verilog - creating a timer to count a second

Verilog 'cannot match operand(s)' & 'multiple constant drivers'


How do I create a radial fade out emission / neon light tube


How is the new Google+ google IO 2012 app slide menu built?

How did Google manage to do this? Slide ActionBar in Android application


Which is correct: "What is" or "What are"


Casting Booming Blade with an improvised weapon

Would improvised weapons work with cantrips like Green-Flame Blade and Booming Blade?


Netflix not working after Firefox upgrade


Reference an entire sheet in Google Sheets

How to specify the entire sheet as range in Google Sheets?


Apache wildcard virtual host in windows (xampp)


ToC formatting - numbers too close to section headers

How to modify the space between the numbers and text of sectioning titles in the table of contents?


How to store "large" amounts of data in a desktop app?

Lightweight SQL database which doesn't require installation


Interpretation of multiplyng matrices with different dimensions geometrically

Matrix multiplication: interpreting and understanding the process


How do I read an entire file into a std::string in C++?


count number of ones in a given integer using only > + | & ^ ~ ! =

How to count the number of set bits in a 32-bit integer?


How to backup programs before upgrading Debian?

How to create a list of installed packages for easy/automatic reinstall after disk is formatted


$R$ finite commutative ring with identity. Prove that $a \in R$ is either a zero divisor or a unit.

Every nonzero element in a finite ring is either a unit or a zero divisor


c# set class property from another class

CS0120: An object reference is required for the nonstatic field, method, or property 'foo'


How to make a material a texture for use in other 3d applications

How do I bake a texture using Cycles bake


Is there a bijective map from $\mathbb{R}$ to ${}^{*}\mathbb{R}$?

Cardinality of the set of hyperreal numbers


side-by-side equations, with equation numbers for each


the line is not in a smooth curve in cesium when creating an animation line from the source to the destination

OpenLayers 3 / Cesium polygon projection issue


How can I permenently change the priority of a process?

SOLVED: How can you set high priority on "games" permanently?


How to make an image transparent android


If $A$ with a size of $n\times 200$, does the inverse of $AA^T$ always exist?

When (and more importantly, why) does $AA^T$ have an inverse?


Blog rejected from AdSense for Insufficient content


Why does "T" not equal "T" in this example?


where is ns-2.35 and tcl8.5.8 directories in file system stored?

How do I get a list of installed files from a package?


How to programmatically check if getopts is installed? If not, install it

How do I check if a package is installed on my server?


Ring with 10 elements is isomorphic to $\mathbb{Z}/10 \mathbb{Z} $


Evaluating $\int_{-\infty}^{\infty} \frac{x\sin(kx)}{x^2+a^2} \,\mathrm dx$ using complex analysis

Evaluating the integral $\int_0^\infty \frac{x \sin rx }{a^2+x^2} dx$ using only real analysis


Can regression coefficients be higher than correlation coefficients?

How does the correlation coefficient differ from regression slope?


CRON chown and chgrp to a directory from root user

CRON - chown and chgrp to a directory from root user to www-data


What's the correct markup to use a figure element with an img and a figcaption as a link?

Getting an error in W3C Markup Validation when trying to get a whole  element as a link in a page


Well Ordering of Sets of Natural Numbers

Why isn't this a well ordering of $\{A\subseteq\mathbb N\mid A\text{ is infinite}\}$?


What is nonce and how to use it with Ajax in WordPress?


Will programs installed on XP work on Ubuntu after installation?


How to get day of year number in Java for a specific date object?


Converting Tex to Image using javascript

Is there a javascript LaTeX equation renderer?


Github won't let me remove sensitive data

Completely remove files from Git repo and remote on GitHub


Insert tex code in pdf document as metadata

Is there some way to embed LaTeX source code in a PDF file?


How to make an .sof upload to an Altera Max10 stick


Where is this LED getting its timing from?

How do two-leaded color changing LEDs work?


Increase of virtual memory without increse of VmSize


Is there an equation $f(k,m,n)=n$ where $n$ is the number of applications of the Ackermann function needed?

Ackermann function - how to calculate the number of times it calls itself


Expanding electromagnetic field Lagrangian in terms of gauge field


BUG in system.log, DEPRECATED USE in libdispatch client. Strange things in system report

High resting CPU usage and Idle Wake Ups


Positive integers x,y,z such that $x!+y!=z!$

Finding all the numbers that fit $x! + y! = z!$


grep for specific process in ps but not the grep command itself

How can I prevent 'grep' from showing up in ps results?


Why does the issue number appear when using \citeyear with apa-syle?

biblatex - issue number of journal in date


Text Input Created from $(document).ready Get Keypress Function

Event binding on dynamically created elements?


Redirection to a file instantaneously in linux


Javascript For Loop With Decimal Increments Has A Wrong output


i think im being scammed by a sugar daddy


Where are the start menu customization pictures located on Windows 8?

Extracting Windows 8 Start Screen Patterns


I'm searching for book out of which this question have taken.Help me to find out.

Proving an inequality in Eigenvalues of a matrix


How to check if a directory exist, within a shell script?

How can I check if a directory exists in a Bash shell script?


Calculating the sum of $\sum\frac{n^2-2}{n!}$

What's the value of $\sum\limits_{k=1}^{\infty}\frac{k^2}{k!}$?


rest app php "Trying to get property of non-object"

How do I create a copy of an object in PHP?


why i getting this null reference object?

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


How do I export both my private and public keys into one file?

How do I retrieve the public key from a SSH private key?


System of linear and nonlinear diff equations

System of differential equations - linear system, shooting method


If two objects collide, will the collision force be twice as big as the original force?

Is two cars colliding at 50mph the same as one car colliding into a wall at 100 mph?


How can I fix apt error "W: Target Packages ... is configured multiple times"?


pantograph file that says 'illegal copy'


Unexpected Coffeescript transformation with if?


Which answer should be the accepted answer for this question

I have a stupid self-answered question. Should I accept my own answer?


Can I use Apple's San Francisco font (and other fonts) in my own text editor?

Is there a user font for San Francisco in El Capitan?


Ubuntu 20.04 Grub colour is black and white

How to change the purple background color in grub?


Sugar daddy wants my online banking login info to make deposits — is it a scam?


How to compare two column of a file and a list and print not matching pattern with awk

How to compare two column of two file and print not matching pattern with awk


How can I export sublayers to png in Adobe illustrator?

What is the easiest way to export just the selected objects in Illustrator?


How to reshape data from long to wide format


random number generator for special characters

How to generate a random alpha-numeric string


Splitting shapefile into separate files for each feature using QGIS or SAGA


What is the error with equating a value in an ArrayList to a String? **The ArrayList is type String**


Why is the careers section only open to Programmers/Developers?

Extend Careers to other sites (like Ask Ubuntu), not just Stack Overflow


Review conference papers under supervisor name

Is it common to review papers assigned to your supervisor?


Is there a useful difference between defining a method in an object contructor and appending it to the constructor's prototype object?

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


Prevent matplotlib from showing scale notifier when axis limit is high

How to remove relative shift in matplotlib axis


Can Blender save Rendered image periodically

Saving intermediate stages during rendering


Instance_eval does not work with do/end block, only with {}-blocks

Ruby block and unparenthesized arguments


c++ moving to next element in a file.txt

How to test whether stringstream operator>> has parsed a bad type and skip it


How to pass a globbing pattern as parameter to a function in bash?

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


List of lists changes reflected across sublists unexpectedly


PHPMyAdmin: how to change timezone to Europe/London

setting timezone for MySQL using PHPMyAdmin


Manuscript transferred from editor to editor

What does the typical workflow of a journal look like?


Can I travel to the UK for leisure holding a UK Business Visa?

Travelling on Business visa to UK for tourism purposes


How to specify an element of a list when using RecurrenceTable

Trouble with RecurrenceTable using elements from a previously computed list


Converting Specialized Sirrus hybrid to drop bars

Can I convert flat bar to drop bars on a hybrid bike


$E$ is a splitting field of $f(x)=x^3-3x+1$ over $\mathbb Q$.Then determine the group $G(\frac {E}{\mathbb Q})$

Galois group of irreducible cubic equation


Looking for a book about alien insects invading earth

Trilogy: Alien-insects invade earth and are resisted by cyborgs


Why light can't go faster then 300 000 km/s? What prevents it?

Why and how is the speed of light in vacuum constant, i.e., independent of reference frame?


How can I embed a webpage in a MS Word Doc


C++ Assign a variable of type A to type B that extends A


How long can I store a food in the pantry, refrigerator, or freezer?


How do I open an Access .mdb when I don't have permission to convert/enable it?

How can I decrypt or gain access to a protected Access database?


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


RFC 822 email address validation in java

What is the best Java email address validation method?


What is the right way to remove head of a number?

How to completely delete the head of a function expression


unmet dependencies while installing wine

Why do I get an "unmet dependencies" error when trying to install WINE?


Does a Canada PR card holder require a transit visa for London Heathrow airport?

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


Maximum of sum of the moduli in a domain $D$

Maximum of sum of finite modulus of analytic function.


How to read file from a folder that has many sub-folders

Recursive bash script to collect information about each file in a directory structure


Limit of this recursive sequence: $x_{n+1}=\bigl(1-\frac{1}{2n}\bigr)x_{n}+\frac{1}{2n}x_{n-1}.$


Using bibtex, how to combine two references such that they are mentioned as one in the bibliography


How to find first empty line and delete with in the file using sed command regular expression

How to use sed to replace only the first occurrence in a file?


What principle of quantum mechanics tells us that harmonic fluctuations of a field act like localized particles?


How can I unhook this action that was added via $this?

How to remove a filter that is an anonymous object?


Prove that $x_n$ converge if subsequences $(x_{2n})$, $(x_{2n+1})$ and $(x_{3n})$ converge

Let $\{x_n\}$ be a sequence in a metric space such that $\{x_{2n}\}$, $\{x_{2n+1}\}$ and $\{x_{3n}\}$ all convergent. Show that $\{x_{n}\}$ converges


Proving 2 sets have the same cardinality