Does every C++ implementation file need its own headers?


Why is a very small percentage of the swap being used when my ubuntu is almost freezing?


Why speed is defined as distance over time


What is the difference between '' and null in sql

Why does Oracle 9i treat an empty string as NULL?


How does an ETF that tracks a foreign stock index work? - Potential arbitrage opportunities because of time-zone?

How are ETF prices calculated after the market is closed


What is a serialVersionUID and why should I use it?


What does the number in {} for Bibilography actually do?


Logistic Regression: Bernoulli vs. Binomial Response Variables


JTable - wrap multiple lines of data in same cell


What is the scientific reason for the inclination of earth's rotation axis?


What do the numbers by the tags on the Recent Tags sidebar mean?

How is the popularity of "recent tags" calculated?


How to let `dpkg -i` install dependencies for me?


What can I replace the word “I” with in my cover letter?

Is it poor form to start too many sentences with I?


How do I move back to original directory?


How to prove and interpret $\operatorname{rank}(AB) \leq \operatorname{min}(\operatorname{rank}(A), \operatorname{rank}(B))$?


Question mark or bold citation key instead of citation number


Repeated "to" in "to whom something is done to"?


what's the difference between the ls and `ls` in bash


What is best. Buying a one way ticket or a round ticket that is refundable

Is it fair to buy a return ticket I know I will never use just because it's cheaper?


How to Do Trigonometric Range of Floats in Python?

How to use a decimal range() step value?


Creating div's and textbox using Javascript

Creating a new DOM element from an HTML string using built-in DOM methods or Prototype


Prime number expressible as $2^2+3^3+5^5+7^7+11^{11}+\cdots$


Problem 24 Chapter 2. Evans PDE 2nd edition


Beginner servlet question: accessing files in a .war, which path?

Recommended way to save uploaded files in a servlet application


Can I skip over releases when upgrading?


Sharepoint Add-ins vs Sharepoint Web-parts

The difference between webpart and add-ins


java.lang.NullPointerException exception while reading csv file

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


Suppose $f$ is entire and $|f(z)| \leq 1/|Re z|^2$ for all $z$. Show that $f $ is identically $0$.


How many command line arguments are there in the main function of C language?


Why keyword `self` create a second field if i wana set a value in this field?

What is the difference between class and instance attributes?


How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?


Icons too big after update Ubuntu GNOME 16.04

Is there some way to decrease folders/icons size in Nautilus 3.18?


UK Standard visitor visa received but a few documents submitted are missing. How to get them back?


Rational Solution of a System of Linear Equations

System of linear equations having a real solution has also a rational solution.


Open Attachment on Create of Child Record (2)


Which tables should be emptied when clearing database-stored cache manually?


Show that a complex function is identically zero.

Showing that $f$ is identically $0$ on $\mathbb{D}$


creating objects from different classes with same reference

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


Impact of using LLVM-GCC to resolve issues on 2nd generation device running iOS 4.2.1

Coordinates all wrong on iPhone 3G? It could be your compiler


How to detect malicious script in my CentOS server?

How do I deal with a compromised server?


When installing user applications, where do "best practices" suggest they be located?


Tex file is using old version of moderncv

PDF output is different after copying code into new file and compling


How to move app data to external SD card without root


Hint for finding the $\sum_{n\geq1} \frac{n^p}{n!},p \in \mathbb{N}$


What is the inverse of the $\mbox{vec}$ operator?


Vban installation -bash: $: command not found


Putting a simple if-then-else statement on one line

Does Python have a ternary conditional operator?


What is the difference between Left, Right, Outer and Inner Joins?


Convert HTML to Microsoft Word Document in Java


I have a config.properties file in which I am stored the credentials for a database, but when I try to execute it gave me " NullPointerException"

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


Array rotation with python (90 degree clockwise)- Having issues with understanding list copies

List of lists changes reflected across sublists unexpectedly


How to add X/Y data from Excel file (saved as CSV) on shapefile?


Paying extra on a mortgage. How much can I save?

Should I pay an extra $100 every month on my mortgage or pay $1200 extra every year at the beginning of the year?


Ubuntu 20.04 nordvpn installation problem

"debconf: DbDriver "config": config.dat is locked by another process: Resource temporarily unavailable" while installing packages


the [[0]*n]*m generated List[List[]] question python


find records with lower case names and upper first letter names

Oracle - Select where field has lowercase characters


How to force timer over a process in Matlab

Stop and continue execution from debugger possible?


can my transit visa take me through munich and frankfurt?


Regain lost focus after requery-MS access


Remove margins between container for border-spacing?

No border-spacing before first item and after last item


How do I create a very long delay with Redstone?


Tensor product involving Levi Civita symbol

Contracting with Levi-Civita (totally antisymmetric) tensor


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


override hashCode() and equals() to store an object inside hashMap - not replacing first entry


Where do should I post questions asking for subjective recommendations (i.e. of tech books)

Give each site a parallel site for polling, recommendations and subjective-ish stuff


How to install Brave Web Browser for ubuntu 18.04?

How to install Brave web browser for 32-bit lubuntu 16.04?


how to install panda via terminal in ubuntu 18.04 and 19.04?


I am getting this error when I try to boot my system

My Ubuntu is running fsck on every bootup


How can we know that particular application is in device or not

How to get a list of installed android applications and pick one to run


dimension of a symmetric matrix with trace zero

Finding the dimension of real symmetric matrices with trace zero


Why is my crontab not working, and how can I troubleshoot it?


Rewriting javascript code to php, what is the difficulty level


Saving a String into a file, then loading it into a String variable will give a "different" string that seems to have the exact same name


How to get Steam to recognize existing game files for Arma

How to get Steam to recognize existing game files from a different source?


GRUB installation error: failed to get canonical path of `/cow'


How to attach javascript function while dynamic creating the element

Event binding on dynamically created elements?


What are valid values for the id attribute in HTML?


Dual Boot Windows 8 and Ubuntu: Grub works, Ubuntu boots, Windows 8 doesn't

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


How to find all analytic functions such that $f(z)=-f''(z)$

$f'' + f =0$: finding $f$ using power series


Updating in datastore not working in GAE 1.9.0


Can I read the contents of a directory using HTML5?

HTML5 File System - How to read directories using directory reader?


'Return' keyword returns only one element from a loop?


Can you access a client's bookmarks using javascript with their permission?


Why do people omit the definite article?


Showing an integral domain is a field using a function?

Proof that an integral domain that is a finite-dimensional $F$-vector space is in fact a field


Let $C$ be the commutator subgroup of $G$. Prove that $G/C$ is abelian


Constant Presheaf on Irreducible Space already a Sheaf


How to prove $\sum\limits_{r=0}^n \frac{(-1)^r}{r+1}\binom{n}{r} = \frac1{n+1}$?


Subscript size for formulas in beamer presentation

The subscript size for formulas in beamer presentation


UK visa blank refusal letter without reason for refusal


Is 'please tell me how can I help you' grammatically correct?

Can you please tell me what is the food choice / what the food choice is? (inversion)


Custom anisotropic material not quite working as expected


Removing the underline from under a visited link


setting global font scaling (which will affect menu bars, editors, such as gvim)

How do I change fonts and adjust their size?


CSS selectors : styling link which contains img

Is there a css selector for selecting an element futherup in the html?


Too much review time and the related actions


PDF table of contents, and some character accents

What are hyperref’s PDF bookmarks and how do I use them?


Using the division algorithm, find the greatest common divisor of $x^4+x+1$ and $x^3+2$ in $\mathbb{Q}[x]$

Finding inverse of polynomial in a field


c# working with image data, use arrays or lists?


What is a suitable image resolution for canvas prints?


Syntax error in python if the volume isn't integer

What's the canonical way to check for type in Python?


How can I encrypt my pendrive with password?

How to encrypt external devices using a cross-platform solution?


Choosing the right wheel size in my cycle computer


I want to fetch all the values of EditText from fragments inside a viewpager and want to use them in activity?

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


What are some books that introduce me to advanced physics concepts?


finding files that match a precise size: a multiple of 4096 bytes


How to prove $\lim_{n \rightarrow\infty} e^{-n}\sum_{k=0}^{n}\frac{n^k}{k!} = \frac{1}{2}$?

Evaluating $\lim\limits_{n\to\infty} e^{-n} \sum\limits_{k=0}^{n} \frac{n^k}{k!}$


How to return two vectors from one C++ function

Returning multiple values from a C++ function


How to Convert 2-D array into Image in c#


Why can't I use protected constructors outside the package?

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


What is the best way to solve modular arithmetic equations such as $9x \equiv 33 \pmod{43}$?


Why does Blender create a new copy of a material when I duplicate an object?

How to avoid duplicating assigned materials when duplicating a mesh?


Unknown class exception when inflating a dialog fragment in android

Strange OutOfMemory issue while loading an image to a Bitmap object


Hard time interpreting r output, p value confusion?

What does the notation like 8.6e-28 mean? What is the 'e' for?


$\lim_{n \to \infty} \int_{0}^{\pi}\frac{\sin(nx)}{nx}dx$

Let $b>0.$ Evaluate $\lim_{n \to \infty} \int^{b}_{0} \frac{\sin nx}{nx}dx$


How can I change the umask for one command only?


Proving that two matrices are congruent, in order to establish a rank and signature result.


String formatting: % vs. .format vs. string literal


What is the name of the cable inside PC cases?

How do I identify hardware I am unfamiliar with on my computer?


Solve $I = \int_0^\frac{\pi}{2}{\frac{\cos x}{\cos x + \sin x}}dx$

Evaluate the integral $\int^{\frac{\pi}{2}}_0 \frac{\sin^3x}{\sin^3x+\cos^3x}\,\mathrm dx$.


Can't get this jQuery snippet to work with Wordpress


how to Skip unauthorized access directory and moving to next directory to search all the".txt"?

Ignore folders/files when Directory.GetFiles() is denied access


Can we change a[i] pointed by character pointer *a?


Why aren’t the electric and magnetic components of an EM wave complementary?

If time-varying electric and magnetic fields originate each other, how come they are in phase?


Smallest possible resistance (highest current)

Why does an infinitely decreasing resistance infinitely increase current?


c++ : TCP Server "bind" function failed (errno 98) if I do not wait enough time between two consecutive app launch


Find limit of $\lim_{x\to \infty} \sqrt{x^2+x}-\sqrt{x^2-x}$

Find the limit: $\displaystyle\lim_{x\to \infty} (\sqrt{x^2+x}-\sqrt{x^2-x})$.


Use iPhone as sound output device for MacBook

Can I have my iPhone play sound for MacBook?


How can I create a 3D model of the CIELAB color space?


Reference for creative set criterion theorem


slow image encryption/decryption on Android


How is a batsman not out when the wicket is put down and they don't have their bat or body grounded inside the crease?


Allow people to answer protected questions if they have earned at least some amount of combined SE rep


Define a equivalence relation For any (x,y)∈N...

Define a relation and find its equivalence classes.


how to determine if 2 dates object equals each other?


Why is my host name wrong at the Terminal prompt when connected to a public WiFi network?

OS X computer name not matching what shows on terminal


apt-get cannot connect to Ubuntu archives


SQL used memory exceed to its max memory

Why is SQL Server consuming more server memory?


Heredoc (Multilined Input) in Win BAT script


Null pointer exception error when using link movement method

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


How do I deal with a PC who is playing like a child, and is constantly throwing the party into disarray?


Passing Arraylist between activities? Using Parcelable

Android:Passing a hash map between Activities


If $E$ has measure zero and $f$ is $C^1$, then $f(E)$ also has measure zero

Why does a Lipschitz function $f:\mathbb{R}^d\to\mathbb{R}^d$ map measure zero sets to measure zero sets?


Is there a command to factory reset Ubuntu?


What is the physics behind these balancing forks?

Physics behind a match performing a trick on center of mass


Why does my ArrayList contain N copies of the last item added to the list?


I would like to send a notification email (Asana) whenever something is published (posts, pages, custom post types)

How to auto send email when publishing a custom post type?


Show that the set $A := \{x \in Q : x < 0 \text{ or } x^{2} < 2\}$ has no maximum. Does it have a supremum? If yes, what is it?

Define $S\equiv\{ x\in \mathbb{Q}\mid x^2<2\}$. Show that $\sup S=\sqrt{2} $.


Given any path $\phi$, we can find an injective path $\psi$ with the same endpoints as $\phi$

Does path-connected imply simple path-connected?


Is a double 60 amp breaker really feeding 120 amps?

What's the amperage on a circuit breaker that's "linked" together?


null pointer exception on linked list java when adding a node before the last

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


Are there disadvantages to a prosumer camera for a beginner, aside from cost?


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


Custom label in field value of custom settings

Combine Custom settings with Custom Labels


Little endian Vs Big endian convention in x86 chips

How to interpret objdump disassembly output columns?


Add a transparent image on top of a material


Find shortest matches between two strings


Misplaced \noalign when everything seems fine

Misplaced noalign after rowcolor in multicolumn


Why is the derivative of $\Psi$ continuous at $x=0$?


Is it possible to set DNS for mobile network


Which Ubuntu distro is right for this 2-in-1?

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


How to surpass/ignore Duplicate Management Rules in Apex?


How to stop MacOS from adding (#) to my machine's name?

How do I stop my computer name from automatically, and incorrectly, changing?


Given a word and a text, return the count of the occurrences of anagrams of the word in the text

Given a word and a text, we need to return the occurrences of anagrams


Has anyone successfully installed CUDA 5.5 on Ubuntu 13.10 64-bit?


Ap-hotspot not creating in Kubuntu 14.04

"Starting Wireless Hotspot..." but nothing happens


is there a way to get Flash 11 on ubuntu 13.04?


How to compare two object variables in EL expression language?


Do Maxwell's equations predict light instantaneously reaches a point one light-year away from the source?

Deriving the speed of the propagation of a change in the Electromagnetic Field from Maxwell's Equations


"Best" (idiomatic) way to select the k smallest elements from a container in C++

Retrieving the top 100 numbers from one hundred million of numbers


Ubuntu WILL NOT boot, no matter what i do. Need help!

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


A question on the representation of all integers in terms of the sum of other interger cubes

Can any integer can be written as the sum of 8 integer cubes?


Todonote, problem withe the position of the messagebox

todonotes get cut off in margin of twoside document


view.findViewById for listview getchildAt() return nullpointer

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


Returning multiple values from a C++ function


What reason(s) exist to suppose that all degeneracy pressures can be overcome in Black-Hole formation?


Keep only first two digits after decimal with no rounding

Truncate (not round) decimal places in SQL Server


Can you cast a spell while holding a shield?

Can I wield just a shield and use magic?


Use Euler's Method to solve y' = 1+ x/Sqrt[y], y(1)= 9, h = 0.01


If p is a prime other than $2$ or $5$, show that $p$ divides infinitely many numbers


How to change element's background-color with animation in click function?


Search elements from ArrayList with custom class and change color for it


Why do I need a strong password for my Ubuntu user account?

Any reason to have a strong user password?


LineNumberReader.readLine() if query not behaving correctly


Javascript floating point changes accuracy depending on how you input the variables


Galaxy S3 Providing Audible Voicemail Notifications and Alarm reads the time out loud

Built-in alarm, calendar suddenly talking to me. How can I shut them up?


Possessive apostrophe in phrasal descriptor

"The queen of England's crown" or "The queen's of England crown"?


ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server

Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server


Citations in Texmaker using Mendeley to form a bibtex database


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


Wasted screen space due to multiple horizontal bars at the top when an application is open in GNOME desktop


Suggestions for workflow for organizing light room library

What is the typical post processing work flow for amateur photographers?


How does electricity travel through a set of resistors arranged parallel to each other?

Electricity takes the path of least resistance?


Email Address Validation in Android on EditText

How should I validate an e-mail address?


Can't pass parameters to find from function execution

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


Generating function of 'monotonic' partitions

Plain integer partitions of $n$ using $r$ parts


Can I preemptively pay my credit card bill before a charge is posted?


Is it possible to change your spawn point?


Migrating a question after it has been closed


Should I use the word "that" in a sentence when it is not required?

Are there rules about using "that" to join two clauses?


German language for Phd courses in Germany

Do PhD courses in engineering fields in European non-English speaking countries require knowledge of the native language?


Why use $_SERVER['REQUEST_METHOD'] and not $_POST

$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'


Create a single executable from a Python project


Having Issues Installing Drivers for a Broadcom Wifi Adapter with Ubuntu 20.04


Terminal icon in window titlebar is stretched out over window control buttons


Why do Elves have certain ages if they're immortal?

How do Middle-Earth Elves age (if they age at all)?


Find the sum of an infinite sequence(not a series)

Evaluate the series $\sum_{n=1}^{\infty} \frac{2^{[\sqrt{n}]}+2^{-[\sqrt{n}]}}{2^n}$


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


how to bind ASP.Net DropDownList control in EditItemTemplate of GridView on edit(imagebutton)click

Binding dropdownlist inside gridview edititemtemplate


$B$ finite over $A$ implies $B_{\mathfrak{p}}$ finitely generated as $A_{\mathfrak{q}}$-algebra


What are the incentives for universities to recruit athletic student

Why do American colleges and universities have sports teams?


"Incompatible with other applications(s) using the same shared user ID” while installing Google Play service?

"Incompatible with other applications(s) using the same shared user ID" when installing Google Play service?


Android Null Pointer Exception on drawColor

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


What are all the homomorphisms between the rings $\mathbb{Z}_{18}$ and $\mathbb{Z}_{15}$?


PHP in_array() / array_search() odd behaviour


How to show $a,b$ coprime to $n\Rightarrow ab$ coprime to $n$?


Can we use verbs of perception in the present continuous?


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

Intransitive verbs with preposition in passive sentences


do presets affect sharpness and contrast of raw files?

Do different "Picture styles" affect RAW output?


If we solved the observer effect/problem, doesn't this mean Quantum superposition isn't actually real?

Isn't the uncertainty principle just non-fundamental limitations in our current technology that could be removed in a more advanced civilization?


Why does Voldemort become more snakelike?

What really happened to Voldemort's nose?


n x n matrix has the same eigenvalues as its transpose

A matrix and its transpose have the same set of eigenvalues/other version: $A$ and $A^T$ have the same spectrum


Is it possible to prove that for any non-constant continous real function there is an interval on which the function is strictly monotonous?


NullPointerException error in Runtime.getRuntime().exec


Why C# supports structure when we have classes and interfaces for supporting OOP concepts

When should I use a struct rather than a class in C#?


Dust patterns inside electronic product - what causes this?

Reason for strange "canyons" of dust on the cooling platform


How to force Windows to rename a file with a special character?


How to check whether a file (from the list of file names) exist or not in Python?

How do I check whether a file exists without exceptions?


Java: Time taken to run the same code is different

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


Move the Animation Controls in a Manipulate Slider

How can I get Manipulator control elements to appear on one line?


what is the way to reach apropriate answer about my question about group in algebra

A group such that $a^m b^m = b^m a^m$ and $a^n b^n = b^n a^n$ ($m$, $n$ coprime) is abelian?


How can I show that $n! \leqslant \left(\frac{n+1}{2}\right)^n$?


How can I list all of the files in a directory with Perl?

How do I read in the contents of a directory in Perl?


Problem with hline on alternating row colour table


Compute Integral $\int _{0}^{\infty} \frac {(\ln x)^2}{\sqrt x (1-x)^2} \mathrm dx$


How do I make my screenshot ask me what to do next every time?


Track Windows Login/Logoff events in Java

How do I access Windows Event Viewer log data from Java


Is there any evidence that everyone sees colours the same way?

How can you test what color different people perceive?


Cant delete ubuntu entry from EFI partition

Uninstall GRUB and use Windows bootloader


Exported jar finds some files (not all) even though the paths are the same

I'm trying to export a runnable jar in Eclipse, but I need it to include some other files necessary for running my program


How do i select the 1st and then every 4th row in a html-table with nth-child()-selector?


Difference between BeanFactory and ApplicationContext?


how to help 2 devices share local ports behind firewall through a ssh server with ssh reverse tunnel port forwarding

ssh reverse tunnel port forwarding connection fails


Combinatorics question: maximal number of subdivisions

Let n be an even integer. How many different ways can I choose subsets of the set {1,2...,n}


NullPointerException when I try to select a view

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


Remove a value from a nested list not working

List of lists changes reflected across sublists unexpectedly


Congruence a is congruent to bmod(n) is the same as amod(n) = bmod(n)

Show that conguence $\bmod m\,$ is an equivalence relation


Trying to set-up ubuntu on a Sony Vaio VGN-B100B

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


How to write a cite command that never fails (avoid [??])

Show reference label when it is undefined


what is the best way to Implement a counter in Java 8?

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


Why doesn't this authentication protocol work?

Why doesn't this dummy mutual authentication protocol provide mutual authentication?


How do I assign a string as a keyboard shortcut?


Prove that $\int_0^{\pi} \sin^2 x\, dx = 2 \int_0^{\pi/2} \sin^2 x\, dx$

Show that $\int_0^\pi f(\sin x)\,\mathrm{d}x = 2\int_0^{\pi/2}f(\sin x) \, \mathrm{d}x$


Setting python3.2 as default instead of python2.7 on Mac OSX Lion 10.7.5


Is it possible to delete an object from inside its own function? [Python]


How to hide soft touch buttons on devices like Galaxy Nexus

Hide ICS back home task switcher buttons


Is there a way to import my configured settings from Texstudio on one PC to another?

Backup and restore settings in Texstudio


Decompiling a jar file and modifying the source to hack an application. How to prevent this?


Exception in Sending Mail from Zimbra to Gmail


Looking for a short story title about an alien that encounters a probe on its own planet

Looking for the title/author of story about snail-like creatures


Mathematica 10.2 Manipulate function settings problem

Initializing Manipulator value within DialogInput (version 10.1 only)


Can wizards really cast spells in armor?


Sharing my 240V 30amp between two dryers


Font shape undefined(Font) problem with arabic text

Typesetting a document using Arabic script


Why does sort -k4nr and sort -k 4 -n -r give different results?

sort behavior when using numerical option: "sort -k2,2 -nk6,6 foo" vs "sort -k2,2 -k6,6n foo"


Java Generics: Can you instantiate an object of type parameter inside class constructor?


Behaviour of char variables, what values are assigned and why?


How to redirect from FR to COM when using HTTPS

Multiple SSL domains on the same IP address and same port?


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


Import self-written ArcView 3.2 extension to ArcMap 9.3 or higher

Converting Avenue scripts/extensions from ArcView 3.x to ArcPy for ArcGIS Desktop?


Load file into div without removing the content

Can jQuery .load append instead of replace?


Bash regex match not working - escaping all special characters


Cannot boot from Ubuntu live usb (pcie bus error)


Find a combination with length n from an Array in Java

Algorithm to return all combinations of k elements from n


Total Energy of the ISS orbiting the Earth

Why is the total energy of an orbiting system negative?


How to know the port number used by c# UdpClient?

How do I find the port number assigned to a UDP client (in .net/C#)?


Do two waves propagating in different directions on the same line induce a standing wave?

Standing waves due to two counter-propagating travelling waves of different amplitude


Object's rotation behaves strange while using siderbar rotation sliders

Could someone please explain gimbal lock?


Verb agreement in “It is you who has/have come”

Is "It is you who are mistaken!" correct?


How a static synchronized function works?

Java synchronized static methods: lock on object or class


How can I trigger an onchange event manually?


Account suspension for 1 year - what to do now?

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


Why is the fundamental group of torus with finitely many points removed a bouquet of circles?

Fundamental group of a torus with points removed


Two neighborhoods of $0$ in the plane and the upper half plane (resp.) cannot be diffeomorphic.

Exercise $2.1.1$ - Differential Topology by Guillemin and Pollack


Mixed effects model with level 2 explanatory variable

Can a variable be both random and fixed effect at the same time in a mixed effect model?


what is the difference between time.time and time.clock?

Python's time.clock() vs. time.time() accuracy?


`cd` to a folder in bash script not working: No such folder

Why can't I change directories using "cd" in a script?


What is the difference between software and firmware?


$i^{-1} F$ a sheaf if and only if $\varinjlim_{ U \subseteq X \text{ open}, ~ x,y \in U } F(U) \to F_x \times F_y$ is an isomorphism.


Does an electromagnet have a magnetism limit?


Why can't I name a folder or file 'CON' in Windows?


Compute Lebesgue measure of set of all real numbers in $[0,1]$ whose decimal representations don't contain the number 7

What is the measure of the set of numbers in $[0,1]$ whose decimal expansions do not contain $5$?


UK Standard Visitor visa refused (V3.6(b), deception on prior convictions, 10 year ban), can I reapply immediately?

How soon can I re-apply for a UK visa after getting a refusal?


How to know if my user is an active directory user

ValidateCredentials returns true for unknown user?


A problem with a simple command definition


How can I prove that the sum $4^n+n^4$ is a composite number for all $n>1$.


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


how to get model field type for validation in django

how to get field type string from db model in django


Lack of possessive marker when taken from a group

"The queen of England's crown" or "The queen's of England crown"?


How can I make the board render correctly (Sharelatex)?


Can I add a cron job without editing a file?


How to avoid the wrinkle at the poles of the UV sphere?


Which command is used for checking if file is not open in linux?

How find out which process is using a file in Linux?


An app on the play store promises to TRIM without root access but I highly doubt if it even works

This app promises to run "fstrim" without root but I am not sure if it works


What does the word "respectively" mean in software development?


Is there a USB female to male cable that converts 5V, 1A to 5V, 500 mA?

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


Is it normal for DC wall adapter power supplies to provide voltages above the nominal ones?


How do you split a list into evenly sized chunks?


Wordpress Astra archive page: chronological numbering w/ reverse-chronological display ordering?

How to reverse the pagination numbers of an archive?


Max. and Min. value of $|z|$ in $\left|z+\frac{2}{z}\right| = 2\,$


Splitting the exponent of a negative number?

What are the Laws of Rational Exponents?


Remove dynamically added LI list item with jQuery

Event binding on dynamically created elements?


Frequentist approach to prior information


what is the difference between RSA and DHM mathematically? And why RSA is hard to break

Is Diffie-Hellman mathematically the same as RSA?


Some time NTFS partitions can't open in Ubuntu 16.04

Unable to mount Windows (NTFS) filesystem due to hibernation


Continued numbering in self defined list


Counting the exact number of coin tosses


Android setText problem error with editText

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


Any good ways to prove that there is only one group of order 2?

Why are cyclic groups of order $p$ (prime) unique up to isomorphism?


Biblatex not generating in-text citations or references

Biblatex with Biber: Configuring my editor to avoid undefined citations


How to set path for all users on CentOS 7?

Add a path in $PATH globally for every user


How to match command-like arguments using regex (C#)

How to use sed to replace only the first occurrence in a file?


Collage of six photos, not Facebook Lookback movie


Does the phrase "per se" have to be italicized?


Automorphisms of a direct product of cyclic groups

Number of automorphisms of a direct product of two cyclic $p$-groups


Book: Nanobot apocalypse on Earth, originally used for weather control

Novel about a replica of earth where history happened slightly differently after the ~1940s


I restarted migration assistant, do I need to delete data from the first transfer?

Cancelled wireless Migration Assistant... best way to start over?


Why am I offered an upgrade from 14.04 to 15.10, instead of 16.04.1

How do I upgrade from 14.04 LTS to 16.04.1 LTS?


iOS UIWebview Load local device HTML file path

How to load local html file into UIWebView


How about a feature to request a revision on a response and/or downvote?

Is there any appeals process for technically incorrect down-voting?


Can volume snapshots be used as replacement for Clonezilla images?

Setting up LVM Snapshot as a backup/restore point in ubuntu


Missing last word of string when I split the sentence into word

How do I iterate over the words of a string?


Is there a Stack Exchange site for R-related questions only?

Which site is more reasonable for questions about R, SO or stats.stackexchange.com?


How to remove list items comparing with another list items of same type


Detecting Ctrl + click button and click button

How to detect the currently pressed key?


What will happen to speed of light in an accelerating frame?

Does the speed of light vary in non-inertial frames?


Edge browser stopped working after upgrading to Windows 10 October 2018 Update (version 1809)

Edge won't connect to internet, Skype for business won't screen-share, Windows Store won't update apps after Windows 10 version 1809 installed


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


Why does Random.Next() always return the same number

Random number generator only generating one random number


How can I associate a downvote with an already existing comment?

Is down voting supposed to be anonymous?


Upgrade Ubuntu 14.04 to latest version 18.04

Is a clean install better than upgrading?


I've just tried "sudo apt-get update" but it failed

How do I remove a malformed line from my sources.list?


After removing all URLs and resubmitting to google search engine. Iv'e not been indexed!

Why aren't search engines indexing my content?


Find all function $f \colon \mathbb R \to \mathbb R$ such that $f(xf(y)) + f(yf(x)) = 2xy, \forall x, y \in \mathbb R$.

Solve the following functional equation $f(xf(y))+f(yf(x))=2xy$


Prove that $A_n$ is the only subgroup of $S_n$ with index 2.

$A_n$ is the only subgroup of $S_n$ of index $2$.


What is the meaning of maximum likelihood estimation?

Maximum Likelihood Estimation (MLE) in layman terms


Can't start Virtual WiFi after connection to another WLAN

Android phone issue with internet connection via WLAN shared by virtual wifi from my laptop


Copy files from one remote server to another remote server with Powershell

What security setting is preventing Remote PowerShell 2.0 from accessing UNC paths


Cannot run bash file for set up Hadoop path

BASH script to set environment variables not working


Nginx static file configuration for CenotOS 7 Minimal Installation


Is there a way to trim art boards in illustrator like in photoshop?

Illustrator CS6: Change artboard size / final saved file dimensions to match bounds of content


Irrationality of $\pi$ and circumference to diameter ratio.

Why is $\pi$ irrational if it is represented as $C/D$?


Confused about Java passing methods (by value or reference)

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


Can `function a() {}` be seen as a shorthand of `a = function a() {}`?

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


A word to describe meaningless exchanges in conversation

What are exchanges like "How are you," "I'm fine," and "See you later" called?


Does "A guy named Tony" mean the same as "A guy who's called Tony"?

Is it correct to say "What was your name?"?


Make a table with a fixed width and a flexible height

How to create a table with long text and which packages use


javascript not working locally but works in jsfiddle

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


A question on " But guess we'll cry come first of May "

Can a bare infinitive verb as the first word of a sentence form a clause?


Do gods keep their +1/+1 counters if they stop being creatures?

Can non-creature permanents have +1/+1 counters?


jquery syntax error unrecognised expression

Which characters are valid in CSS class names/selectors?


Why can't I take close-up and night time pictures with my Nikon D3300?


I find a weird issue about lists of list in Python

List of lists changes reflected across sublists unexpectedly


Syncing OneDrive by mirroring the local folder to the cloud not the cloud to the local folder

How can I save automatically my files to OneDrive or Google Drive without store in my computer?


Do I need a UK visa if I have a 7-hour layover in London?

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


How to add comma and space after every 2 elements string?

How do you split a list into evenly sized chunks?


Please allow non-Unicode named editors be pinged with autocomplete

Expand the username auto-completion to everyone who can be notified


How rate of interest affects inflation rate

How to calculate the future expenditure of education :


Substring of string matching regex in a bash shell

How to check if a string contains a substring in Bash


String in java behavior. How the String concatenation works during runtime?


how to pass variable inside replace java-script function

How do you use a variable in a regular expression?


Proposed fix for: Wrong formating of the vote count in the Android app

Number of upvotes incorrectly displayed in android app search


DPKG is showing "trying to overwrite '/etc/xdg/xfce4/whiskermenu/defaults.rc', which is also in package xfce4-whiskermenu-linuxlite 2.1.4-1"

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


How to make this stylish «cutting mat» theme?

How to change the Viewport background color?


New LTS not available to do-release-upgrade without -d option

Why is "No new release found" when upgrading from a LTS to the next?


Why is there a 0R resistor linking GND and AGND in analog voltage reference circuit?


Including +/- signs to battery in Circuitikz


Can anyone help me to find out which version of Ubuntu we use?

How can I find the version of Ubuntu that is installed?


what type of hypotheses does "goodness of fit" signifies , i.e is it single tailed or two tailed?


How do I rig each blade to fan out like an aperture lens?


How do I install applications in Ubuntu?


How do I put an image texture on a material in Cycles?


How to install AMD drivers on XUbuntu 15.10?

What is the correct way to install proprietary ATI Catalyst Video Drivers (fglrx) directly from AMD?


Checking whether toString has been assigned

How do I check if an object has a specific property in JavaScript?


How to explain the behavior of Rule inside these functions

How to make a function that evaluates an expression?


Let $R$ be a commutative ring such that for each $a\in R $ there exists a positive integer $n$ such that $a^n=a$

Show that any prime ideal from such a ring is maximal.


RDP connections changes target desktop icon positions

Desktop icons rearrange after using remote desktop connection


For which values $\alpha, \ \beta \in \mathbb R $ does the series $\sum_{n=2}^{\infty} \frac{1}{n^\alpha \ln^{\beta}(n)}$ converges?

For which values of $\alpha$ and $\beta$ does the integral $\int\limits_2^{\infty}\frac{dx}{x^{\alpha}\ln^{\beta}x}$ converge?


Windows 10 100% Disk Usage after Startup

What can I do about 99% disk usage (only 0.9 MB/s)?


hide (forever) specific updates in Windows 10? HP Printer update failure

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


is it ok to use a lower wattage dc adaptor?

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


Option to remove the @username references in the replies from your history, when you change your name

Change all @username references in comments when a user changes their name?


Prove that interchanging the $ij$-entries of $n \times n$ matrix will not change the result(eigenvalues).


Why the scrollTop in jQuery doesn't work on Firefox?


php base64_decode equivalent in javascript

How can you encode a string to Base64 in JavaScript?


Plot 4D data with color as 4th dimension


Having an issue with simple account checking program? Program returns compiling error that states "no match for 'operator||' unsure of how to fix?"


How to create a command that kills a certain team only with a snowball

How can I trigger a command when a player is hit by a Snowball?


Why didn't Voldemort search for the Deathly Hallows?

Why did Voldemort never seek the Hallows?


About This Mac → Storage suggests more space in on the SSD than is actually being used


Extracting the contour lines from an image


Bluetooth stopped working suddenly on 16.04


Having difficulty proving that the set of nth degree monic polynomials that split on R is closed in Rn(X) with supremum norm using topological methods

Closure of the set of degree $n$ polynomials with $n$ real roots


Integration by Substitution: substituting variable with complex functions

Are Complex Substitutions Legal in Integration?


Can a participle phrase modify a clause?


Consider $f_n, f \in L^2(d\mu)$, $f_n(x) \to f(x)$ a.e. and $\|f_n\|_2 \to \|f\|_2$. Use Egorov's theorem to show that $f_n \to f$ in $L^2(d\mu)$.

$f_n(x) \to f(x)$ and $\int |f_n|^2 \, d\mu \to \int |f|^2 \, d\mu$. Use Egorov's theorem to show $f_n \to f$ in $L^2(d\mu)$.


Ruby error - undefined method `test_path' for #:0x4028ee0>

What do I need to do to make this link work in Rails


Convert column resultset to row SQL Server

Simulating group_concat MySQL function in Microsoft SQL Server 2005?


Let $q: X\to Y$ and $r: Y\to Z$ be covering maps; let $p=r\circ q$. Show that if $r^{-1}(z)$ is finite for each $z\in Z$, then $p$ is a covering map.


Why didn't the hotel's angels become real?


Get unique combinations of elements from a python list

How to get all possible combinations of a list’s elements?


What is the difference between * and *& in C++?


Estimating the error in the standard deviation

What is the standard error of the sample standard deviation?


Need help to solve these two trigonometric functions?


AttributeError when trying to use seek() to get last row of csv file

Have csv.reader tell when it is on the last line


How does this Interac e-transfer scam work?

Is this reply promising a money order and cashier check a scam?


How do I make these green lines in edit mode the default color?

What are the colored/highlighted edges in edit mode?


A gap between lines of joined path in illustrator


removing the comments from the string in java


UK Refugee Blue Travel document holder. Why can't I travel to Italy anymore?

Can I travel to Italy on UK-issued refugee document?


What is the number of fixed plaintexts of RSA

How many points in RSA, such that $m^e = m \bmod n$


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


How to generate dynamic legend using ArcPy?

Showing only legend items that are actually displayed on map in ArcGIS Desktop?


Prove that for all $a,b \in\mathbb{R}$, $a·b=0$ if and only if $a=0$ or $b=0$.

Showing that every field is an integral domain.


my iphone5 is shutting down and has no power to turn on what do i do?

iPhone 5S suddenly turns off at 30-40% of battery life


Can any $n$ number of linearly independent vectors build the basis of a vector space on $\Bbb R^n$?

Does every linearly independent set of n vectors in $R^n$ forms a basis in $R^n$?


Valid email address using regular expression

How to validate an email address using a regular expression?


Does offset from the axis cause problems in barn door trackers?


As what user does a command end up executing?

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


\emph not working with TrueType font on XeLaTeX

Can XeLaTeX generate bold and italic font styles for typefaces that lack them?


How do I choose between "while" and "whilst"?


Having table on the same page as the heading?

Keeping tables/figures close to where they are mentioned


Does the group of rationals under addition have a basis?

How can we show that $\mathbb Q$ is not a free $\mathbb Z$-module?


How to calculate ray polygon intersection?

Ray Intersecting Plane Formula in C++/DirectX


Alternative notations of Function Composition

Is there a commonly used notation for flipped composition?


A cyclic group having only one generator

Non-trivial cyclic group with unique generator


Why a sentence can use '-ing' verb without prepositional phrase?

On the structure of "search for weapons and bands of pro-Hussein fighters still holding out"


What is the flaw of this proof (largest integer)?


If $q\mid 2^x-1$ and $q\mid 2^y-1$ does $q\mid 2^{\gcd(x,y)} - 1$?


Consider the following system of differential equations

Differential Equations: solve the system


My WD external drive unmounted itself and now does not work


Proving the vector identity $u\cdot (v \times w) = w \ \cdot (u \times v) = -v \ \cdot (u \times w)$

vector identity for triple scalar product


Why is the hat leaderboard a little off?

What do the numbers on the Winter Bash leaderboard mean?


Getting average of calculated list haskell

Outputting the contents of a list of a custom data type


Cycles fire/smoke render - black particles

Cycles Flame in Smoke Simulation not Rendering


How swap two column in a multiarray in R


JavaScript selecting image to an img tag


Summation Of Series of $\binom{x+k}{k+1}$ where $k$ is $0$ to $n$


How to appeal to undelete an answer deleted by moderator?


What is the inverse of X modulo $1 + X + X^2 + X^3 + X^4$?

Let $\theta$ be a root of $p(x)=x^3+9x+6$, find the inverse of $1+\theta$ in $\mathbb{Q(\theta)}$


Displaying the questions or answers reputation, in addition to the total reputation

Split reputation: one for questions and one for answers


Will I fit or need an extension?(first time flyer)

How big is "too big" for an airline seat? At what point will you be required to buy two tickets?


Python 3: How can I remove time? I just want the number of days

How to calculate number of days between two given dates?


Wait for question to close before rejecting migration

Migrations should not be rejected while question is "on hold"


Having trouble importing SVG file into blender

Why can't I import a SVG file from Adobe Illustrator or Inkscape?


Converting SRTM to UTM makes pixels non-square


"Failed to build gem native extension" error when installing mysql2 on mac

Ruby Gem install Json fails on Mavericks and Xcode 5.1 - unknown argument: '-multiply_definedsuppress'


How to burn a Windows .iso to a USB device?

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


C# - How to convert List to List, when Dog is a subclass of Animal?


Existence of Total Order Compatible with Partial Order

Every partial order can be extended to a linear ordering


what means this javascript code function

What is the (function() { } )() construct in JavaScript?


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


Is there a word/phrase to describe expressions of moral righteousness accompanied by inaction?

A better way to say "to engage in double standard"


No Windows 10 option in GRUB and Windows drive seems empty from Ubuntu

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


Choose 2 good batteries out of 8 (4 bad 4 good)

We have $n$ charged and $n$ uncharged batteries and a radio which needs two charged batteries to work.


How to turn paths to files into path to directories


Diff between two instances of same class

find out the differences between two java beans for version tracking


If every absolutely convergent series is convergent then $X$ is Banach


If a bard has expertise in Persuasion, doubling his Proficiency Bonus, does drawing the Throne card from the Deck of Many Things double it again?

I Roll To Seduce The Dragon! (or, Do doublings of proficiency bonus stack?)


If $0\le x_{n+m}\le x_n\cdot x_m$, show that $\lim (x_n)^{1/n}$ exists

If $x_{m+n} \le x_n+x_m$, then $\lim x_n/n$ exists and is equal to $\inf x_n/n$


Short Story: Genetically engineered bats steal space ship

Short story where a scientist uses a time-machine to evolve mice with wings


Can I use multiple versions of jQuery on the same page?


Book with walrus-like aliens invading and using asteroids to wipe out major cities

Searching after a science fiction book/series about Galactic war with a weaker Human/Alien Alliance vs. Another hostile alien race


Simulating group_concat MySQL function in Microsoft SQL Server 2005?


Is there a built-in function or library that converts UTC time to milliseconds in Python?

How do I parse an ISO 8601-formatted date?


Show that $\lim_{h \rightarrow 0} \frac{a^h-1}{h}$ exists

Show $\lim_{h\to 0} \frac{(a^h-1)}{h}$ exists without l'Hôpital or even referencing $e$ or natural log


How to get the selected value from select box in html

Get selected value in dropdown list using JavaScript


"I am poor in english" or "I am poor at english" Which one is correct?


Can someone help me finish this: evaluate $S_n = \frac{x}{1-x^2}+\frac{x^2}{1-x^4}+ ... + \frac{x^{2^{n-1}}}{1-x^{2^{n}}}$

Two different expansions of $\frac{z}{1-z}$


Convert Excel Sheet to Web Page + Horizonal Scrolling


Amount of sunlight and its effect on the eye sight


Loop terminal command for combining PNG to GIF animation

How do I create an animated gif from still images (preferably with the command line)?


Closed, uncountable set without rationals.


combustion vs biological oxidation of glucose

Why only 6 water molecules are formed in the aerobic degradation of glucose?


Localized (or foreign language only) Area51 site


Remove a semicolon in a string by JavaScript

How to replace all occurrences of a string in JavaScript?


An apparent contradiction to $m = m_0/\sqrt{1-v^2/c^2}$

Where's the energy in a boosted capacitor?


why frameworks provide annotation based configuration

Xml configuration versus Annotation based configuration


Is the function strcpy always dangerous?


Is there a way to select multiple sprites from a sprite sheet in GIMP?

Exporting square tiles from a stripe - in Inkscape or Gimp


What is the difference between crontab -e and nano /etc/crontab?

cron jobs - difference between editing "/etc/crontab" and "crontab -e"


Can't log in: Can I get files using tty1?


What Is the best long term, Fragmenting LAMP or beefing up hardware

Can you help me with my capacity planning?


Are there more elegant options to CAPTCHA?


"Heard me [infinitive]" vs. "heard me [present participle]"


Using correct coordinate system in ArcMap?

Identifying Coordinate System of Shapefile when Unknown?


How to loop a triangle-shaped piece into n-gon

Rotating each iteration of an Array Modifier


How to shrink Windows 7 boot partition with unmovable files


Restricting duplicate attribute values in file geodatabase feature class?

Enforcing unique values in field when editing in ArcMap?


Ubuntu 20.04 background -- is there a way to make the screensaver rotate/change every five minutes?

How can I change wallpaper automatically?


Quantum Harmonic Oscillator: is it impossible that the particle is at certain points?

Is there actually a 0 probability of finding an electron in an orbital node?


Is there a way to deal with answers that were modified to match yours?

changing your answer to match someone else's


How do I get an entire directory in sftp?


Why do we lose the abelian property as soon as we reach exponentiation?

Why are addition and multiplication commutative, but not exponentiation?


How to integrate $\int_0^\infty\frac{dx}{1+x^n}$

Improper integration involving complex analytic arguments


60% of the Bahamian population "is" or "are"?

Does a percentage quantity take singular or plural verb agreement?


Creating a table with Silverlight for Windows Phone 7


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


javascript to generate 50 no-repeat random numbers

How to generate random numbers with no repeat javascript


Invalid pointer exception using pinvoke on libnfc for string values

PInvoke for C function that returns char *


Let $E$ be measurable and define $f:E\rightarrow\mathbb{R}$ such that $\{x\in E : f(x)>c\}$ is measurable for all $c\in\mathbb{Q}$, is $f$ measurable?


"How do I look?" vs. "What do I look like?"

"What does she look like?" vs. "How does she look like?"


Create the directory structure using mkdir and touch


Prove that the set of all $n × n$ matrices of the form $AB-BA$ is equal to the set of all $n × n$ matrices with trace zero

Dimensionality of null space when Trace is Zero


Find the number of elements of a complex subset

Number of $60$th primitive roots of $-1$


How to subtract X days from a date using Java calendar?


Do @replies notify poster of another answer

Does using @user in a question or answer send an inbox-notification to that user?


Store encrypted MAC key inside encrypted file?

Security issues of a MAC-then-Encrypt-then-MAC approach?


Given a user calculate how many bytes their process are consuming

How can I measure the actual memory usage of an application or process?


What is a word for someone who is in pain but puts out a tough image?

What do you call a person who keeps on going despite setbacks? (in one word, a noun)


apt-get update only for a specific repository


What is the physical explanation of the statement "magnetic force is vector product of velocity of charged body and magnetic field"?

Is there an intuitive explanation for why Lorentz force is perpendicular to a particle's velocity and the magnetic field?


How would you count occurrences of a string (actually a char) within a string?


$G$ is an abelian group and $x=a_1a_2...a_n$

Product of elements of a finite abelian group


Why are angular velocities of double pendulum small in small angle approximation?

Small oscillations of the double pendulum


Change of basis for a rank 3 Cartesian tensor


A question about a limit involving nested radicals

How do I calculate this limit: $\lim\limits_{n\to\infty}1+\sqrt[2]{2+\sqrt[3]{3+\dotsb+\sqrt[n]n}}$?


Defining the support of a random variable in Mathematica


Buying game collection that contains game that I own Steam

What happens if I buy a game I already own through Steam a second time?


Necessity of Category Theory for understanding Algebraic Topology

Category Theory usage in Algebraic Topology


-1 point on a page where I have never interacted


Preprint on CV - should I include journal I submitted to?

Indicate Journal name for "under review" and "accepted/in press" publications on CV


Prove a bijection between $\mathbb{N}^2$ and $\mathbb{N}$.

Proving the Cantor Pairing Function Bijective


Can I iterate through two loops of equal size with foreach?


Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?


How to resolve 'maximum trigger depth exceeded' error in my trigger?

What are recursive triggers? How can recursive triggers be controlled?


Is it possible to recover an email that has been clicked "delete forever" in the trash folder?


How can I contact Stack Overflow support?


Is it allowed to ask developers to complete a scientific survey on Stack Overflow?

Are questionnaires permitted on Stack Exchange sites?


Writing contents of an array to a text file


Test Class Issue with UNKNOWN_EXCEPTION, portal account owner must have a role


Is there a direct, elementary proof of $n = \sum_{k|n} \phi(k)$?


grub error: you need to load kernel first


Is if __name__ == '__main__' in python same as the main() in java?

What does if __name__ == "__main__": do?


completeness in banach-steinhauss theorem

What facts about the weak topology fail in spaces that aren't Banach?


Meta sites in "Your Communities" display different reputation


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


Close a selectbox when clicking outside of it

How do I detect a click outside an element?


Proper way to raise exception in python?

Is there a difference between "raise exception()" and "raise exception" without parenthesis?


Why was Sauron afraid of anyone finding the ring?

Would the One Ring even work for anyone but Sauron?


"Follow close behind" vs "follow closely behind"?


How do I reset my manor so I can rebuild it with different options?


Every prime ideal is max. if anysequence $I_1 \supseteq I_2 \supseteq I_3 \supseteq \cdots $ stabilises?

Let $R$ be a Artinian commutative ring with $1 \neq 0$. If $I$ is prime, then $I$ is maximal.


Cannot Delete FileStream Group from Sql Server 2008

Trouble removing filestream file / filegroup


Prove that for any infinite set $A$, $|\mathbb{N}|\le |A|$


How to split data from column to multiple columns

Single query approach to split and copy string values in a column


Who decides when to hold elections? Any schedule or alert system available?


K&R2, exercise 1-16; what is the assignment?

K&R Exercise 1.16 - Limitation on line length


How to add mysql-8.0 repository from archive.ubuntu.com/ubuntu/pool/main/m/mysql-8.0/


Twice differentiable function vanishing at 0.

If $f(\frac{1}{n})=0$ all $ n\to \mathbb{Z^{+}}$ then find $ f'(0)$?


Why are programming libraries off-topic?

why are the best questions the ones which have been closed?


Can I use Westvale Abbey in a Commander deck that does not use black?

In EDH/Commander, what is the 'color identity' of a double-faced card?


Do I need to get identical ram to upgrade a laptop?

How does Motherboard and CPU affect RAM choice?


Wide page layout option for 1080p and 1080i screens


How can I remove certain lines and surrounding lines from a file?

How to grep-inverse-match and exclude "before" and "after" lines


JavaScript wrong integer division result


How do I change either the text in the views data export CSV button or the button completely


Removing page number from the first page of new part

How do you get rid of page numbers on \part pages?


Are there disadvantages/consequences to adding scheduled tasks directly to /etc/crontab instead of using the crontab command?


how to write syntax in sql like that ? because i have an error in this. (with php)


What is the difference between "call by reference" and "call by value, where the value is a pointer"?


Is it possible to call a constructor from a string parameter in a method?

Create an instance of a class from a string


“I like to do (be) something” vs “I like doing (being) something”


How to simplify the summation kk! without using induction?


How to shrink over sized logs in Database Mirroring?

Can I shrink the transaction log file on a mirror database?


A transformation transforms a line to a line, if and only if it is a linear transformation

How to prove that linear transformations transforms lines into lines


Show that $E(Z^p) = p \int_0^\infty (1-F_Z(x))x^{p-1} \, dx$ for every $p>0$ and nonnegative random variable $Z$

Explain why $E(X) = \int_0^\infty (1-F_X (t)) \, dt$ for every nonnegative random variable $X$


What currency does the galaxy deal in besides credits?


`Part` like `Delete`: How to delete list of columns or arbitrarily deeper levels

How to use "Drop" function to drop matrix' rows and columns in an arbitrary way?


A Particular Two-Variable System in a Group


When does product of derivatives equals derivative of products?


How do I disable or completely remove the save configuration button in module's admin page?

Remove or hide the submit button on search block in Drupal 7


i want to install java on Ubuntu 13.04, but i got this type of problem during installing java

Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?


Is there any simple way to apply or map a function F to each 2 elements of a list but without Partition?

How to Map a subset of list elements to a function?


Is there any overhead to declaring a variable within a loop? (C++)

Difference between declaring variables before or in loop?


Is data storage in std::vector continuous?

Are std::vector elements guaranteed to be contiguous?


Use of Apostrophe s to show possession when the noun is singular but ends with s

What is the correct possessive for nouns ending in "‑s"?


I'm trying to graph a rational function in tikz


Email, forwarded by procmail, rejected by Gmail

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


A sequence that converges normally but not uniformly

Show that $f_n(z)=z^n$ converges locally uniformly on $|z|<1$ but not uniformly(?)


What should be the order of the authors in a paper?


call prototype defined function from object constructor

How to access the correct `this` inside a callback?


How to create a archive template for custom post type

WP 3.1 - archive pages for custom content types possible now without a plugin?


What is the variance of the mixture distribution that is made up of 2 of the same distribution?

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


I want to print "Hello" even before main() is executed

Printing hello world without main method


Is there a prove that every unprovable proof, provable unprovable?

Examples of provably${}^n$ unprovable statements


My Google chrome update stop at some percentage

Play Store Downloading of Updates Stuck part way through download


Is speed of gravitational waves constant?


what is the necessity of c++ static cast

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


Which Ubuntu version will suit my computer

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


Aligning multiple figures/tikzpicture vertically and horizontally


Do JavaScript engines create a new lexical environment for closures ?


Converting from UEFI to Legacy after Ubuntu installation


Site was 301'd to non-www URL, PageSpeed Service only handles www - Transfer FB likes & comments?

How can I move a URL via 301 redirect and retain the page's Facebook likes and Open Graph information?


How do you get a method whose code instantiates another object to initialize a different object each time its called?

"Least Astonishment" and the Mutable Default Argument


Customizing terminal not affecting after restart through ~/.profile

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


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


Can't create two objects from a class by obtaining data using Scanner

Java: .nextLine() and .nextDouble() differences


We will join you in an hour.We will be joining you in an hour


weird behavior when writing numbers in the console


Transparent object within transparent object in eevee does not display

Can't see a glass object through another glass object in Eevee


If only a Sith deals in absolutes, then does Yoda deal with Luke by using absolutes?


What is the quote from Beowulf that says Grendel can't be harmed by weapons?

Was Grendel supernaturally protected from weapons?


Bad alignement with forest package when drawing folder tree

Making a directory tree of folders and files


Calculate days between date and today in PHP

How to calculate the difference between two dates using PHP?


google-play-services.jar and Google+...it does not work

Google+ button integration...something is wrong


How to fix 'android.os.NetworkOnMainThreadException'?


How do I stop the Invalid Name Error in minecraft pocket edition, even with an appropriate name?

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


I found two USB sticks on the ground. Now what?

How do I safely investigate a USB stick found in the parking lot at work?


Real valued continuous functions in metric spaces

Show that exists a continuous function in $E$ that is not bounded


Job Search by distance isn't respecting the distance

Subscription Bug: Emails including jobs that do not match defined filters


Old bug returning which shows "add / show X more comments" when it shouldn't

"Add/show 1 other comment" bug strikes again


Victim of revenge downvoting of questions

What is serial voting and how does it affect me?


Starting Tasks In foreach Loop Uses Value of Last Item


What's the difference between Virtual functions and normal functions?

What is the most concise yet accurate way to describe what a virtual function is in C++?


$n$ points are picked uniformly and independently on the unit circle. What is the probability the convex hull does not contain the origin?


How to set opacity in parent div and not affect in child div?

I do not want to inherit the child opacity from the parent in CSS


How do I check if an object has a specific property in JavaScript?


Android app with continuous logcat monitoring

No enclosing instance of type ... is accessible


What is the maximum or minimum tire width I can fit on my bicycle


Make the content of a tab occupy 100% of the available space and avoid a vertical scrollbar

Make a div fill the height of the remaining screen space


Capture several consecutive expression with preg_match_all

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


Why haven't I earned the Electorate badge yet?

What are the badges I can earn on each site, and what are the exact criteria for earning each badge?


Different types of creating functions for javascript

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


"BAD signature" when trying to verify SHA256SUMS

BAD signature when trying to verify SHA256SUMS for Bionic Beaver ISO


Story regarding suspended animation and human-shaped felines

A story about Earth in far future with a civilization centered around a huge tree


How do I change the location of macOS screen captures?


Lightning in space, would it be a perfectly straight line?


VirtualBox 4.3.20 stops working after Windows Update

crypt32.dll is broken for Virtualbox since patch Tuesday 9-Dec-2014?


how can i verified if a path exist or not


Symbolic computation under certain assumptions

Computing kernels of a matrix in distinct cases


Prove a binomial identity $\sum^{n}_{k=0}\binom{n+k}{k}2^{-k} = 2^n$

Proof of the identity $2^n = \sum\limits_{k=0}^n 2^{-k} \binom{n+k}{k}$


How to turn off a particular hard disk in a multiple disk computer system to save power?

Is it possible to create individual power settings for each hard drive?


Android specific ADT dependencies missing

ADT requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found


How to redirect stdout and stderr in different files

How to redirect stderr and stdout to different files and also display in terminal?


How do I transpose a row to a column in a tab-delimited file?


Trying to find a String element inside an Array of strings


How to create bootable USB when you are currently using 'Try Ubuntu'?

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


The "Apply Modifiers" button not appearing


Is there a concise way to iterate over a stream with indices in Java 8?


Check if current timestamp matches crontab time pattern in PHP

PHP function that receive a cron string and return the next run timestamp


Die Temperature conversion result of the pipeline ADC

How can I convert an input with the 16-bit Sigma delta A/D converter


Installing 3.13 kernel on Saucy (13.10) - possible?


Color.parseColor not working on some colors - Android


Segmentation fault reversing a string literal

Why is this string reversal C code causing a segmentation fault?


Why does my term show up as undefined in python?


"An (obvious) problem" or "a (obvious) problem"?


Not able to edit in Apex class 'This schedulable class has jobs pending or in progress'

Apex class has Batchable or Future jobs pending or in progress


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


iOS7's subview trimmed if out of parent view bounds

How to stop UITableView from clipping UITableViewCell contents in iOS 7


Problems converting Javascript canvas to PNG

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


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


How can I change language of my application


Combinational interpretation of $\binom n 3 = \sum\limits_{i=2}^{n-1} (i-1)(n-i) $


How to sort a HashMap with DateTime object


Ubuntu Server 17.04 enable numlock without desktop environment

How can I execute command on startup (rc.local alternative) on Ubuntu 16.10


How "submitted", "to appear", "accepted" papers are evaluated in a CV?


How can I find the cheapest prepaid SIM card for a given country?


Rack Mount Servers - Build them or Buy them?


Remove Ubuntu 14.04 LTS from a desktop computer

How to remove Ubuntu and put Windows back on?


Which one is always acceptable: "i.e." or "i.e.,"

Should I always use a comma after "e.g." or "i.e."?


Why is quantum measurement not happening all the time?

Why aren't particles constantly "measured" by the whole universe?


Changing subject and verb positions in statements and questions


NullPointerException thrown from addToBack method from custom LinkedList Array

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


How to add multiple strings to one index in NSMutableArray

Having trouble adding objects to NSMutableArray in Objective C


How do I detect time in minecraft with a command?

How to set Command Block(s) to test for a particular time and output a message?


Referencing between class Object initialized with null

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


Finding the limit of $\left(\dfrac{a^\frac{1}{n}+b^\frac{1}{n}+c^\frac{1}{n}}{3}\right)^n$

Find the limit $ \lim_{n \to \infty}\left(\frac{a^{1/n}+b^{1/n}+c^{1/n}}{3}\right)^n$


is there a css hack for safari only NOT chrome?


Show that the polynomial $x^3-xy^2+y+1$ is irreducible in $\mathbb{Q}[x,y]$


the sound-volume indicator disappeard Ubuntu 13.10


What do I need in a camera to take non-blurry photos of a fast-moving child?


Can a single answer receive multiple bounties?


What is this weird group when importing an FBX, and how do I remove


when i try to echo $10 it becomes echo $1 0

How to handle more than 10 parameters in shell


Do we have eigenfunctions for Laplacian in $\Bbb{R}^n$

What is spectrum for Laplacian in $\mathbb{R}^n$?


How to solve $ x^2=19 \mod 25$. Modular of prime power.

For any odd prime $p$, a quadratic is solvable mod $p^2$ if it is solvable mod $p$, and $p$ does not divide the discriminant and leading coefficient.


Use constructor overload from within class constructor

How do I call one constructor from another in Java?


Can I delete the logs in the /private/tmp folder?


Is light shed from a spell blocked by total (transparent) cover?

Will the effects of light shine through glass?


Object reference not set to an instance of an object when referencing a settings object

How to store a list of objects in application settings


do quantum fields exist in superposition?


Miscellaneous quest text present even after quest completion

Fix for word of power quest bug at Arcwind Point


How come my shaded smooth model looks sharp?

Some areas of the mesh are dark (Shadow artefacts)


Solve Duffing equation to first order with asymptotic power series

find an approximate solution, up to the order of epsilon


Does “upshot” denote something positive, negative, or neutral?


Azimuthal Equidistant Projection - Rotate projection

Rotating ~90° using Two-Point Equidistant projection with Proj4


implementing multiple Buttons for one actionListioner


Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)


Partitioning a number into set of coprimes such that their product is maximum and sum of partition is the number itself

Finding the maximum $lcm$ of a set of numbers with sum $n$


Prove that a finite Boolean ring is isomorphic to $\mathbb Z_2\times \mathbb Z_2\times\cdots\times \mathbb Z_2$

Do these two observations suffice to show that a finite boolean ring must be of the form $\mathbb{Z}_2\times\cdots\times\mathbb{Z}_2$?


Proving $a\sin\theta+b\cos\theta=R\sin(\theta+\alpha)$, where $R=\sqrt{a^2+b^2}$ and $\tan\alpha=\frac ba$

Why does $A\sin{k(x+c)}=a\sin{kx}+b\cos{kx}$ imply that $A=\sqrt{a^2+b^2}$ and $\tan{c}=-b/a$?


Where in Stack Exchange can I ask interview-related questions?

Is there a Stack Exchange site for interview questions?


Regex to match string literal enclosed in quotes without matching others

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


How to redirect STDIN of background process?


How to make listings code correct copyable from PDF and with hyperlink


What is the difference between a framework and a library?


How to make the animation rate lower in an exported GIF

How to Export this animation as a gif file for powerpoint presentation


Is there a word for " someone who hates people from their own country"?

Word meaning the reverse of 'Xenophobia'


Homeomorphism between homeomorphic spaces

Are continuous self-bijections of connected spaces homeomorphisms?


How to affect other elements when one element is hovered


Make a div fill the height of the remaining screen space


Taking user input from a button in `Manipulate`?

In 10.3 System DialogInput execution error


Sorting a list in Python using the result from sorting another list

Sorting list based on values from another list


how to get executed php code from a string?


If $A$ and $B$ are operators on $V$ and $AB=I$, must $BA=I$?


How do you put { and } in a format string

How to escape braces (curly brackets) in a format string in .NET


Why wouldn't everyone encrypt with a One Time Pad?

Mathematical formula for switching the key for OTP?


Let $p$ be a prime number such that $p \equiv 3 \pmod 4$. Show that $x^2 \equiv -1 \pmod p$ has no solutions.

Prove that $x^{2} \equiv -1 \pmod p$ has no solutions if prime $p \equiv 3 \pmod 4$.


Attempted Installing Ubuntu on Windows 8.1 UEFI, Confused about booting in UEFI, Legacy Mode


How do I access a static map from a seperate class in C++?

Undefined reference to static class member


Why does using multiplication operator on list create list of pointers?


Prove the theorem about cardinality of subgroup

Order of a product of subgroups. Prove that $o(HK) = \frac{o(H)o(K)}{o(H \cap K)}$.


How can I proceed to find a maximal principal ideal in $\mathbb Z_{(2)}[x]$?

Checking the maximality of a principal ideal in $R[x]$


Apache cannot start or restart after uninstalling Softaculous


Complex Analysis books/online resources for self study

What is a good complex analysis textbook, barring Ahlfors's?


Extend Ubuntu Partition to a Windows Drive


Blender 2.80: How to obtain a white background using the workbench render engine?

World displays as grey even though set to white


Does Python have a ternary conditional operator?


Simultaneous diagonalization of commuting linear transformations


Timestamp to days, hours, minutes, seconds

Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago...


How to find missing files with sequential names?

How to print the name of missing files in a folder?


How do I get a reference to a component on a sibling object in C# Script?


Download a file over HTTP into a byte array in C#?


We know $\int x^2\,\mathrm dx = \frac13 x^3+C$, so why isn't $\int \sin^2x\,\mathrm dx =\frac13\sin^3x + C$?

Why does the basic intuition fail here? What is the reason behind it?


How to calculate the difference between two dates using PHP?


What's this Error means in Android studio

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


How to make a flat list out of a list of lists?


Non credit card holder travelling turkey

Flying Turkish Airlines, what are credit card rules?


Append Records to a fixed number of columns using dynamic data


Why is Arya Stark allowed to do this in the season 6 finale of Game of Thrones?


How to install OpenGL 3.2 on Ubuntu 18.10? Specs are:Pentium 4 proccessor

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


Requires installation of untrusted packages in every installation

"Require Installation Of Untrusted Packages" while upgrading with the update manager


Supposed we proved that we lived in a simulation. What are some of the current clues we would use to help us acknowledge this?


Open Terminal at Startup and run Java application


How can I connect the wire that goes to the grounding rod to the grounding electrode system?

Is it ok to have mixed grounds and neutrals on bars in a breaker box?


Straight edges for oblique shape in Adobe CC

Working on Small Resolution Images in Photoshop ( icons )


Does a USB HDD contain info on previous mounts?

Where can I find the log files for mounting disks?


Attempting to assign value to a 2D list at index ij causes value to be assigned on each row at j

List of lists changes reflected across sublists unexpectedly


Install Windows10 after Ubunutu 16.04 on SSD

How can I install Windows after I've installed Ubuntu?


if S and T are both one-to-one, show that ST is one-to-one

Let $S:U\rightarrow V, \ T:V\rightarrow W$ and if $S$ and $T$ are both injective/surjective, is $T\circ S$ injective/surjective?


Why are stars, planets and larger moons (approximately) spherical in shape (like, the Sun, the Moon, the Earth, and other planets)?


Adding Class to views row if View style is Unformatted list / Content

How do I add a class to a row based on the value of a field in that row?


All elements in LinkedList have same value as element added

Why does my ArrayList contain N copies of the last item added to the list?


How to convert float raster to vector with python GDAL


What is the origin and thought process behind the tradition of hats?


QGIS 2.12 symbology does not work correctly

QGIS just installed on MAC OSX - vector layer styles do not work properly


One item shows up the render, but another doesn't

Why is part of my model not being rendered?


Simple almost linear functional equation

Prove there are no other solutions of functional equation $f(x+y) = \frac{f(x)+f(y)}{1-f(x)f(y)}$


Prove that if $\gcd(a,c)=1$ and $\gcd(b,c)=1$ then $\gcd(ab,c)=1$


How to compute $\lim_{x\to\infty} \frac{2^x}{x^{200}}$?

How to prove that exponential grows faster than polynomial?


How to pass return statement value to another java class

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


How do researchers send unsolicited emails asking for feedback on their works?

What are the strategies for getting feedback on articles?


Why do words ending in -umble have such semantic overlap?

Are the "umbles" etymologically related?


CSS table with alternate background color with hidden elements


Splitting polygon into equal area polygons in QGIS 3


What are the barriers to understanding pointers and what can be done to overcome them?


Nearby objects won't move independently?


Compute $\mathrm{Aut}(S)$ of the ring $S=\mathbb{Q}[x]/(x^2)$

Determine $\text{Aut}(S)$ where $S = \mathbb{Q}[x]/(x^2)$


How to choose the default gcc and g++ version?


How to set default startup disk from Mac Startup Manager?

How to define from what partition to boot by default in OS X?


No numberings, no numbers (section, chapter, subsection etc.) in header?


Changes Aren't Saved After Shut Down - Ubuntu 16.10 Live USB

How to make an already live Ubuntu pen-drive, a persistent one?


All norm in a finite dimensional topological space are equivalent

How to prove $C_1 \|x\|_\infty \leq \|x\| \leq C_2 \|x\|_\infty$?


The universe is said to have begun as a singularity, but how do we know nothing else existed?


We should make books of our best content!


SQL query through java returning "java.lang.NullPointerException"

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


jq: parse json file with constraint from other field


If f has a 4-periodic point $x_1$ st, $x_1<f(x_1)<f^2(x_1)<f^3(x_1)$ show $f$ has a periodic point of any order.


Can the suffix -wise be considered too inadequate/colloquial for a personal statement?

When is it correct to use the "-wise" suffix?


Use Type.GetType() to get the type and how to new an object in this typical type?

How to create a new object instance from a Type


xrandr settings lost after restart Ubuntu 16.04 with Ultrawide Monitor

How to run xrandr commands at startup in Ubuntu


Why does the C++ map type argument require an empty constructor when using []?


Why does "du -b" show a different size than "right click" ⇨ "properties" inside file browsers?


Make a div fill the height of the remaining screen space


C++ error LNK2019: unresolved external symbol "public: __thiscall

Why can templates only be implemented in the header file?


Prove that if $U$ is a linear operator on $V$, then $UT=TU$ if and only if $U=g(T)$ for some $g(T)$.

Proving that $UT=TU$ iff $U=g(T)$ for some polynomial $g$


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


PHP - What to use for database encryption if not MD5?


Use induction to prove that when $n≥1$, $a_i\in R$, $a_i > 0$, if $a_1a_2...a_n=1$, then $(1+a_1)(1+a_2)...(1+a_n)≥2^n$

Using induction to prove $2^{n-1}(1 + a_1a_2\ldots a_n) \geq (1+a_1)(1+a_2)\ldots(1+a_n)$ for $a_i \geq 1$


ReferenceError: $ is not defined on jquery.are-you-sure.js


Gparted can't resize Ubuntu partition /dev/sda9


Waiting 60 more seconds for network configuration

"waiting for network configuration" Problem


How do I format and word my questions to avoid the "You shouldn't be doing X, do Y" answers?

How do you get people to answer the question, rather than argue the premise?


Extracting the URL attribute from a enclosure tag

Ask for an example code for parsing xml and get attributes by using GData API


When to use bold, italics, small caps, typewriter etc.?


Univariate Regression, expectation of x given y

What is the difference between linear regression on y with x and x with y?


Emails go to spam ( Reverse DNS is set , DKIM pass , SPF pass , DMARC pass )

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


How do I unzip, install and run the game Xonotic.zip?

How to unzip a zip file from the Terminal?


Ubuntu 12.04 update error:failed to fetch cd rom

Failed to download repository information due to missing CDROM


asiformdatarequest.m contain errors asihttprequest

Why are my ASIHTTPRequest files showing ARC errors?


Can I run a specified maven execution from the command line?

How to execute maven plugin execution directly from command line?


How do I check the status of my drivers and install them if needed?

How to download all required Ubuntu drivers


TV mini-series about a boy transported to another world

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


How to avoid private members access by class object outside word?

Why does C++ allow private members to be modified using this approach?


Graphics issues after/while installing Ubuntu 16.04/16.10 with NVIDIA graphics


Measuring roundness using buffers around centroids

Calculating roundness/compactness of polygon?


Binomial coefficient (case differentiation)

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


Encrypting my drive without losing all my files?

Is there a way to do full disk encryption after the install?


If wolves (or foxes) are fitter than rabbits, why rabbits have not become extinct?


"Their body" vs "Their bodies" when referring to people of similar type

Do you pluralize the singular possessions of / items or people associated with individual members of a plural group?


PHP Trim Multiple Spaces In Between the content

Remove excess whitespace from within a string


The use of "don't" for "doesn't" in 19th century England

Historical and contemporary usage of "don't" for the third singular person


What is the best article presenting counterarguments to a many-world interpretation?


If I build a package from source how can I uninstall or remove completely?


How does Twilight Sanctuary interact with other light sources?

Does Dim Light created by an effect override Bright Light in an area?


Is it possible to sort a vector of alphanumeric values using lexical ordering in R?

How to perform natural (lexicographic) sorting in R?


What is the probability hat two particular players verse in Wimbledon if it begins with $16$ players?

In a tennis tournement of 128 players, elimination system, what is the probability that two twins will meet at some point?


How to assign a variable from another variable in a separate file

How do I get a variable's value from one script and import it in another script?


Is This A Scam? Woman added me on LinkedIn first, then e-mailed offering me millions of dollars

Can a foreign bank manager name me as the kin of a deceased customer if I don't know the person?


When I redirect nginx https non-www -> www, do I need ssl on?


Should i change EXISTING (NOT NEW) Urls with underscores to hyphens for SEO?

URLs: Should I use hyphens, underscores or plus symbols?


Email Validation code for python not giving expected output


Solving an algebraic equation with one or more constraints?


Last of element of list is being truncated in python?


How to keep only this specific part of url?


How do I make cpupower frequency-set not reset at boot?

CPU governor changes automatically to "performance" under load


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


Why does the clock work slowly at higher speed?


When submitting a journal article, can I cite a paper which cited my arxiv preprint?


How to insert an image inside a paragraph?


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


Solving the matrix equation and finding the matrices inverse


How do you run Ubuntu Server with a GUI?


Removing duplicate copy of OneDrive in Windows 10 File Explorer


Keyboard shortcut for toggling between Fn and F keys


How to fix "Headers already sent" error in PHP


remove duplicates in list, but keep one copy

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


Looking for title & author - short story - possibly called "Arms Race" - about rediscovery of manual arithmetic

Short story: people rediscover how to do math and want to put people in bombs


Finding all length-n words on an alphabet that have a specified number of each letter


Class using generics is calling wrong version of method (superclass rather than subclass)?

Java generics type erasure: when and what happens?


Current and Voltage in an Inductor with an AC source!

Current waveform in an inductor with AC source


Who was the DADA teacher prior to Harry’s first year?

Was Quirrell the Defense against the Dark Arts teacher for more than one year?


why use super when constructing a subclass

Why do this() and super() have to be the first statement in a constructor?


I search for a term on Google : I have 94 results, another one with his own computer : 14,300. Why?

Why on the first page Google says there are thousands of results but on the last page there are less than a hundred?


Evaluating the infinite product $\prod\limits_{k=2}^\infty \left ( 1-\frac1{k^2}\right)$


Code blocks in spoiler tags illegible on beta sites

On beta sites, the monospace formatting in a spoiler quote is evil.


SQL Server 2012: query to see queries that are consuming more resources


Prove that when $F$ is a field, $F[x_1 , x_2]$ is not a principal ideal ring.

If F is a field, then $F[x,y]$ is a Principal Ideal Domain?


Why is my 2nd if statement in Java not working?


If $\lim_{x\to \infty} f(x) + f'(x) = L$...

If $\lim_{x\to\infty}(f(x)+f'(x))=L$ show that $\lim_{x\to\infty} f(x) = L$ and $\lim_{x\to\infty} f'(x) = 0$


BibLaTeX: Combine same author, different years into one citation

biblatex: Cite commands with the same author prints authors name twice


What are structural elements? Customizing the mechnism of beamer color theme


access soft symlink directory's contents in bash

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


$a^{(n-1)} + (n-1)!\equiv 0\pmod n $ iff $n$ is prime

If $n\ne 4$ is composite, then $n$ divides $(n-1)!$.


How to make hot chocolate drink thicker?

How can I make my Hot chocolate thicker?


Why are there only two groups of order $21$?

Number of non-isomorphic groups of order 21


How do I turn off Auto Layout for a view from code?

"Auto Layout still required after executing -layoutSubviews" with UITableViewCell subclass


Multiple down-values with exactly the same lefthand side


How can you compare the number of real numbers in the interval [0,1] and [0,10]?

More numbers between $[0,1]$ or $[1,\infty)$?


How can I update page title in my setInterval function?

How to dynamically change a web page's title?


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


Difference between document.getElementById and window.ElementId?


Search ranking for important keywords has gone down drastically

How to diagnose a search engine ranking drop?


How do I resolve unmet dependencies after adding a PPA?


Why is $L=\lim_{x\to 0} (1+x)^{1/x}=e$ indeterminate form?

Why is $1^{\infty}$ considered to be an indeterminate form


Filter by date in Java with startDate and endDate

Determine Whether Two Date Ranges Overlap


two different lists of figure in the same document


Cite references in figure caption without appearing in list of figures

Cite in the caption of a graphic but not in \listoffigures?


Query String param and value removed when accessing Lighting App Page


Orthonormality and completeness in infinite dimensions: 2 different definitions

Normalization of basis vectors with a continuous index?


Ubuntu installed but doesn't boot: error parsing PCC subspaces from PCCT

Error parsing PCC subspaces from PCCT: ACPI PCC probe failed


"Why couldn't" vs. "why couldn't you have"


How do I navigate to a samba location I've mounted in Nautilus on the command line?


How do we switch to another folder using terminal commands?

How to access a folder through the terminal


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


How to check this number $\sqrt{47}$ is irrational

How to prove: if $a,b \in \mathbb N$, then $a^{1/b}$ is an integer or an irrational number?


Obtaining marginal distributions from the bivariate normal


How do I use performSegueWithIdentifier: sender:?


How to implement the iAds in xcode 3.1.3


How to install a Broadcom BCM4306 Wireless on MacBook Air


Explainer badge - the 12 hours should be based on when the edit was made, not approved?

Delay in approval leads to missing out on being awarded an "Explainer" badge


How do I map a vector of values to another vector with my own custom map in R

Replace values in a vector based on another vector


FileSystemWatcher Changed event is raised twice


Example of a finite non-commutative ring without a unity


imaplib/gmail how to download full message (all parts) while not marking read

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


Texmaker GUI is messy with high resolution screen


Scala Map values getting printed as float and integer randomly

Is it possible to make Scala's JSON.parseFull() not to treat Integers as Decimals?


What is the macro/primitive for the current run time?

Analog of \pdfelapsedtime for LuaTeX and XeTeX


Null Pointer Exception when requesting Audio Focus

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


Regular Expressions: Email validation - Ensure single occurrence of @

How to validate an email address in JavaScript


The program doesn't stop on scanf("%c", &ch) line, why?

scanf() leaves the new line char in the buffer


Is there any maximum limit to number of running threads in Linux?

Maximum number of threads per process in Linux?


Can I travel from LA to NY with my foreign Passport? (it does not have a visa)

Flying domestically in the USA with non-US passport, if the immigration status expired


A convergence proof: $\lim_{n\to\infty} \left(1+n^2\right)^{\frac1n}$


How do photons know they can or can't excite electrons in atoms?


Calculating a multiplication of large number of matrices takes a long time

Why does partitioning increase Dot execution speed?


Linker errors in Android NDK (undefined reference to `__cxa_end_cleanup')

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


Log process or program network usage under windows

Logging individual application network usage in Windows 7


Could the Bruce Lee scene in "Once Upon a Time in Hollywood" have been imagined?


How to define nested recursive sequence?


search function in mongoDB with case-insensitive query

case insensitive find in mongodb for usernames in php


How can I force PHP to use strings for array keys?


How to insert into a table with a column named 'when' and 'user'

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


Not allowing to specify a user in comment


Matrices: Given $A^{-1} A = I$, prove $A A^{-1} = I$


How to show that $\lim_{n\to \infty}n\sin(2\pi en!)=2\pi$?

What is the limit of $n \sin (2 \pi \cdot e \cdot n!)$ as $n$ goes to infinity?


git-svn isn't committing to branches, only trunk

Cloning a Non-Standard Svn Repository with Git-Svn


“Wrong sources.list entry or malformed file” for http://archive.ubuntu.com/ubuntu/dists/trusty/Release when `apt-get update` was used

How do I remove a malformed line from my sources.list?


Extract Values from HTML via HTML parser

Extract Values from simple html file via grep/awk


Can distance between two closed sets be zero?

Find two closed subsets or real numbers such that $d(A,B)=0$ but $A\cap B=\varnothing$


RewriteCond pattern all match and logs showing the correct redirect link but website still not redirect

Relationship of ServerName, ServerAlias, host.file and how to define them in httpd-vhosts.conf


Two logos in opposite side on beamer with sidebar

Place two logo on top right and top left in beamer presentation


Can I get into a US CSE PhD if I don't have a good CGPA?

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


Constructions: A straight line segment of length pi units.

Can a line of π lengths be drawn with a compass and straight edge?


Do not understand why the following error shows in my code: non-static variable cannot be referenced from a static context

java : non-static variable cannot be referenced from a static context Error


How can insert a full-width listing in a two-column document?


Graphics artifacts booting in an HP Pavilion, how to fix it?

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


OSM street nodes across postal code boundaries

Is it possible to get an entire street via a single Overpass API query?


SQL turn multiple results into one column

Simulating group_concat MySQL function in Microsoft SQL Server 2005?


how find the list of programs installed using the command line and how to get uninstall them


How to call a arrayList method in a tester class?

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


Recovering moved .mod files using grubrescue


Keyword for the outer class from an anonymous inner class


UK standard visitor visa for job interview [Refusal]

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


Why do some python scripts begin with #!/usr/bin/env python?

What type of path in shebang is more preferable?


How many concurrent login allowed for Salesforce Community users?

Salesforce Users are getting this error quite frequently: "To protect all customers from excessive usage and Denial of Service attack..."


Syntax highlighting for C doesn't properly recognize `restrict` as a keyword

What is syntax highlighting and how does it work?


Android Conference and Hold Call Programmatically

How to merge Call programmatically while other call is running (Conference call)


Windows 8 installer folder grows exponentially

Is it safe to delete from C:\Windows\Installer?


how to download invoice html to pdf using php code and without use of any library


Is there any way of automating the startup of applications on virtual desktops on Windows 10?

How can I force a program to open in a specific desktop?


Can't upgrade due to low disk space on /boot


Central Pennsylvanian English speakers: what are the limitations on the "needs washed" construction?


Is there any way to draw chemical structures using latex? Like , naphthalene?

Can you make chemical structure diagrams in LaTeX?


Can I open a certain website with a command line?


Enclosing vs. not enclosing a variable's value in quotes in bash


ArcGIS 10.4 Installation Error- Error 1325 is not a valid short file name

Avoiding Error 1325 EsriPyFldr not valid short file name when uninstalling ArcGIS for Desktop?


How to decrypt c when phi(n) and e are not relatively prime

How to compute $m$ value from RSA if $phi(n)$ is not relative prime with the $e$?


Is there a way of hiding my network profile from my profile on individual sites?


Pygame not exiting even after receiving keypress


Auto-Snap a Terminal (or Nautilus) when Opened

How can I start up an application with a pre-defined window size and position?


How to Use slideDown (or show) function on a table row?


Stack Exchange Data Explorer uses deprecated reCAPTCHA

reCaptcha v1 is shutting down on March 31, but SEDE still uses it


What are the rules for owning and training animals?


Regex issue for getting second group from string

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


I cannot choose to go into Ubuntu. It boots me into windows automatically

Can't boot into Ubuntu in Windows 10 / Ubuntu dual boot


Can two photons form a gravitational bound state?

Are there bound states from light-light or gravity-gravity scattering in general relativity?


Blender only render one frame of animation

Blender is rendering an older version my project


How do I disable sleep on closing the lid

How can I tell Ubuntu to do nothing when I close my laptop lid?


QGIS ->ArcGIS Server configuration possible?


Building a Binary Search Tree in java. Unable to identify the reason for null error?

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