R data frame constructor converts "-" to "." in column names. Is this preventable?


still not in sudoers file when add my username to group wheel

error when adding user to wheel group in CentOS 7


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


Difference in the direction of propagation of em wave

How to determine the direction of a wave propagation?


More frugal display of usage messages in auto-completion popup – possible?

User-defined usage message template; removing repeated text


How to copy files between two computers using SSH


How to remove duplicate values from a multi dimensional array for specific key in php

How to remove duplicate values from a multi-dimensional array in PHP


udev action to call notify-send not working


Why are no Pokemon are spawning at my house?


External hard drive installation of Ubuntu wipes itself with every restart

How to install Ubuntu on portable external Hard Drive?


Is the number 1.1010010001... transcendental?


What are holes? How they exist in pn junction


Do damage-over-time effects such as Melf's acid arrow or vitriolic blast stack with themselves?

Can spells with cumulative or instantaneous ongoing effects affect a creature multiple times?


Force quit from running thread in Python


Partition a set of n objects into k subsets?

Partition a set into $k$ non-empty subsets


StackOverflow not showing question list and shows incorrect number of tagged question count

Question list on Stack Overflow is not showing new question


Display Both next previous and number in single page

Paged posts - how to use numbers and next/previous links?


Convert String to Time Java.sql.time error

How to convert java.util.Date to java.sql.Date?


Append the parent selector to the end with Sass


What exactly is expanding when they say universe is expanding?

Why does space expansion not expand matter?


Every number in $\mathbb{F}_p$ can be written as a sum of two squares?


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


Can't extract needed information from NSDictionary after XML parsing


How to rig a shirt with buttons so that the buttons follow the mesh of the shirt


Why element has various height depending on whether it has content or not

Why my inline-block divs are not aligned when only one of them has text?


If you cook pork sausage in a non stick pan and do not wash the pan is it safe to cook pork sausage in it the next day are can it make you sick

leaving oil on a frying pan for use later


Why is the C# stack based on a dynamic array?

Why are Stack and Queue implemented with an array?


Create alias with paramater in the middle

Can I pass arguments to an alias command?


Splitting each string in a list at spaces in Python

How can I replace a text delimited string list item with multiple list items in a python list?


What does it mean that a "clustered index does not store pointers to the data"?


How to calculate days between two dates in JavaScript

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


Problem rebooting after installing Ubuntu 18.04.2 LTS

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


My figures go to next section but they should stay here

Keeping tables/figures close to where they are mentioned


How to change the language on Google Maps?


Aura Integration Error when installing unmanaged package

"Aura Integration Service Error" When installing a private package


Error trying to publish Hosted layer to ArcGIS Enterprise from ArcMap?

Publishing map services in ArcMap gives ERROR 001487: Failed to update published service with server-side data location?


for-each loop can only iterate over an array or an instance of java.lang.Iterable


Is it possible to connect an embedded device to the internet through a USB internet Dongle?


In layman terms: Why can't Quantum Entanglement be used to achieve FTL Communication?

Quantum entanglement as practical method of superluminal communication


Unexpected behavior of ScientificForm when applied to a list

Why does MatrixForm affect calculations?


simple if, else if .cannot get it to work


My PC (lenovo ideapad z580) is overheating while using Ubuntu GNOME 16.04 LTS


Can I carry a watch as a gift in my carry-on luggage when flying from Kolkata to Chennai?

Do I have to pay duty when carrying 15 iPhones domestically in India? (From Chennai to Delhi.)


undefined control sequence using subsubsubsection

How to add an extra level of sections with headings below \subsubsection


Why does the accepted answer not come first?

Accepted answer does not always appear at the top


Why use JSON to transfer data from an Ajax call OVER x-www-form-urlencoded?


Find the nature of the roots of the following quartic function:


nsurlsessiond wasting my limited data plan

How to stop Catalina from contacting Apple servers when executing programs?


How to style a select tag's option element?


How can I prevent "Media Device" from showing up on a network, while keeping my computer on the network? (Windows 10 Home)

Disable Windows Media Player "media server" network locations


Windows won't let me install Ubuntu Studio

Is there a replacement for WUBI in Windows 10?


How to remove Ubuntu and put Windows back on?


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


Kinetic Energy: Difference in energy for observers

How am I able to stand up and walk down the aisle of a flying passenger jet?


Compact operators on an infinite dimensional Banach space cannot be surjective


cannot find the symbol method console();


ask input when error occurred in python3

Asking the user for input until they give a valid response


what's the difference betwween (x in array) and (i=0;i<array.length;i++)


Can I use 2.3-2.6 tubeless tires for 2.1 rim

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


Check via apex if current ORG is on deployment

How to query Deployment Details in Deployment Status? Is it even possible?


If a Warlock's "Repelling Blast" hits an enemy engaged with an ally, does that ally get an attack of opportunity from it moving away?

Can I trigger an Opportunity Attack by forcing an opponent to move out of my reach?


Do fractals necessarily have to be self-similar? What is the definition of a fractal? Is this figure a fractal?


How do I download pictures from iPhone 7 to Ubuntu PC


Chinese Remainder for x= 7 (mod 8), x= 2 (mod 9), x= -1 (mod 5)

Solving multiple congruences by CRT = Chinese Remainder Theorem


eBay buyer wants to send me $700 for shipping to Malaysia - Scam


Viewing ArcPy code from results of process run


Why does changing the bibliography style to "agsm" randomly bold the journal volume numbers?

Fine tuning the agsm bibliography style, and adding links


Need help with proof for Dedekind cuts on $\mathbb{Q}^+$


How to fetch data from database without submitting HTML form?

Using Jquery Ajax to retrieve data from Mysql


Why are there so many formats for local IP address?

Netstat -a command : Difference between 0.0.0.0 and 127.0.0.1


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


Isomorphism between finite fields adjoining a root


Finding first element occurrence with Python

How to find all occurrences of an element in a list


unable to remove linux-image-extra-4.4.0-71-generic

Apt fails to remove partially installed kernel and can't install any other packages


How to return an array from JNI to Java?


Won't boot into Windows after partitioning with ubuntu installer

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


Inject an EJB into JAX-RS (RESTful service)


Does control and target matter in the CZ (Controlled-Z) Gate?

What is the control qubit in this 1D ladder of controlled Z gates?


Why is a restart only required on some updates?


setTimeout ignores timeout? (Fires immediately)

Why is my function call that should be scheduled by setTimeout executed immediately?


How do I add my Ubuntu computer to my Windows 7 network?

How to share files through the local network?


Finding a general way to sum $ \sum_{i=1}^{i=n} i^k$ for a given 'k' using elementary highschool calculus

Methods to compute $\sum_{k=1}^nk^p$ without Faulhaber's formula


Is it better to accept correct answers or thorough answers?

Deciding what answer to accept: the correct one-liner or the later elaborate one with code?


Why isn't my mesh appearing in the viewport?

Objects Not Showing in Other Workspace Viewports, Only Default


Flash Memory device now shows 31MB capacity after using as linux live-usb device

16GB USB flash drive shows as 16MB and is unusable


Java - Sorting Arraylist by an objects instances.

Sort ArrayList of custom Objects by property


Are philosophy and science mergeable today?


what is the difference between [[0 for x in range(n)] for x in range(n)] and m=[[0]*n]*n

List of lists changes reflected across sublists unexpectedly


Amazon Prime Video incompatability with 17.04

How can I watch Amazon Prime videos using Firefox on Ubuntu 16.04?


Regular expression that doesn't contain certain string

Regular expression to match a line that doesn't contain a word


“See these guys [infinitive]” vs. “see these guys [present participle]”

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


Which spells are "on the sorcerer spell list" for an Aberrant Mind or Clockwork Soul sorcerer?

Can clerics use spell scrolls for spells they receive through their Divine domains?


Non-EU national with Irish residence permit. Can I visit UK?

Do I need visa for UK visit if I have a work permit for Ireland?


Finding the widest angle to shoot a soccer ball from the sideline using optimization!!


How do I convert a high quality video into a low quality one?

What's video converters are available for Ubuntu?


Incorrect SQL syntax, no obvious mistakes

When to use single quotes, double quotes, and backticks in MySQL


How do you summon a Zombie with enchanted armor?

'Unbalanced Curly Brackets' Error with this command block code, what am I doing wrong?


How to find the sum $\sum_{i=1}^{\infty} \frac{1}{n^2+1}$

Find the infinite sum of the series $\sum_{n=1}^\infty \frac{1}{n^2 +1}$


What is the keyboard layout environment variable?

How can I reload my XKB configuration without restarting my computer or logging back in


how to convert datetime to a yyyy-mm-dd hh:mm:ss format in perl?

Converting date to specified format and two date comparisions


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


How to find whether a multiplicative group is cyclic or not


Why didn't the Ministry know what went on in the graveyard?

Why didn't the Trace work in Goblet of Fire?


Print unique factors of a number in python


How to search a specific value in all tables (PostgreSQL)?


What does the "machine" in "support vector machine" and "restricted Boltzmann machine" mean?


How to write up a formula for partial sum of an infinite series?


Customize UIActivityViewController to only show selected apps, excluding AirDrop functionality and bottom row of actions?

Exclude AirDrop and Add to Reading List from apps build with iOS 6 SDK


Why are so many different types of objects white, yet appear gray when they are wet?


"is" operator behaves unexpectedly with integers


What exactly makes a force conservative?


Automatically highlight undefined references


An example s.t. $E(E(X|\mathcal F_1)|\mathcal F_2)\neq E(E(X|\mathcal F_2)|\mathcal F_1)$


Failed to download respository information - Software Updater

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


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


What are SPF records, and how do I configure them?


How do I install Ubuntu from an USB drive / create a live USB-stick in Windows?


How do I center an icon with a text within a span?

How can I vertically align elements in a div?


Find elements $f,g\in\mathrm{End}(V)$ such that $f\circ g=id_V$ and $f,g\not\in \mathrm{End}(V)^{\times}$


How do I create a new class which both of my classes will inherit methods and properties from?

What techniques can be used to define a class in JavaScript, and what are their trade-offs?


How to use biblatex bibliography database in latest Classicthesis LyX version 4.2

BibLaTex, Biber and Lyx: how to resolve \bibliographystyle error?


Recover hacked Gmail account where mobile numbers and alternative Gmail were changed


How to call random string from an array on Java?

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


Failed to load modules at startup: Could not find module by name 'off'


If gcd$(a,2)=1,$ and $p$ is an odd prime, then $(a^{p-1})-1$ is divisible by $8$.

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


Does a superconductor have exactly zero resistance?

Is a superconductor really a super conductor?


How can a disease be transmissible animal-to-human but not human-to-human?

Viruses: Adaptation to a new host through repeated host jumps


Python decorators: how to use parent class decorators in a child class

Accessing a decorator in a parent class from the child in Python


Breaking out of a mixture of for loops and if conditions


filter the file type with the file upload control


Random mobile app icon generation algorithms

How to generate the random default "gravatars" like on Stack Overflow?


Creating left-to-right sliding presentation


How to create function that takes in strings and converts to int if string equals 'one'

Is there a way to convert number words to Integers?


Does Arithmetic Need Non-Computable Real Numbers?


What's the difference between "==" and "=~"?


Make R show a floating point/double without abbreviation e+/-XX


Does Canon EF 50mm f/1.8 II work with Canon 200D?


OSX 'env python' returns different interpreter than 'python'

How to add home directory path to be discovered by Unix which command?


How do I delete all except the newest file in a folder?

Delete all files in a folder except the last (most recent) 20


Is it possible to have no pressure gradient in a tank?

Can there be a pressure gradient in a large enough closed container?


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


Why is The Wall the only democracy in an otherwise Westerosi feudal monarchy? (Minor S05E02 & Book 3 spoilers)


Please explain ".*" execution step by step


What is causing disabled options when adding a mesh/curve object to the scene?


How do I make the following table appear at the top of the current page with table*?

How to put a full-width table at the top or bottom of the same two-column page as the reference text?


PHP, AJAX, MYSQLI and IE9 not outputting as expected

Error on IE 9 - 'SCRIPT600: Invalid target element for this operation


Why does a device show up twice on my dhcp table?

Why do some of my devices show up twice on my routers DHCP list?


Improving "demonstrate a minimal understanding" close reason


How to add a button to a column or subitem in a ListView in WinForms?

Adding button into a Listview in WinForms


Is it possible to extend a tourist Schengen visa (12 more days)?


Performance issue when inserting large XML parameters into temp table

Why insert-select to variable table from XML variable so slow?


Why does Mirror modifier sometimes go to the wrong side?

Mirror modifier. Mirrored half is not aligned, but rotated


Intermediate certificate not sent to clients?

IIS7 Not sending Intermediate SSL Certificate


Rectangular matrix multiplication in cuda


What does the Wand of Wonder mean when it says "as if you had cast" vs. "you cast"?

Does the shrink effect caused by the Wand of Wonder last the full minute?


No such file or directory when I type "cd desktop"


Kingo Root fails and gives error code 0x11f116 (Xiaomi Redmi Note 9)

Why are the rooting apps not working anymore?


Discrete math - Prove that a tree with n nodes must have exactly n - 1 edges?

How many edges does an undirected tree with $n$ nodes have?


Ubuntu Touch - which device HW? (OTG USB, CAMERA, WiFi, Call, SMS)

What hardware does Ubuntu Touch support?


Will installing Ubuntu erase all the data from the existing Windows, despite using VirtualBox?

Will installing Ubuntu on VirtualBox erase data on the host OS?


Safe and efficient way to keep hands clean while preparing food

How do you minimise hand washing between every step to keep tools clean?


Create bug report from "Sorry, Ubuntu 14.04 has experienced an internal error"

How can I track a bug that caused a crash and was reported via apport / whoopsie?


black screen on dual boot - but not always (Win 7 / Ubuntu 16.04)

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


how do I determine the file type of a video file

Tool to view video/audio file information


Create a Tables of signs and variations of function using tkz-tab package


Passing in dynamic key:value pairs to an object literal?

Is it possible to add dynamically named properties to JavaScript object?


Decrease amount of memory used by Exchange?

SBS 2011 - Is Store.exe High Memory Usage Normal?


Finding the eigenvalues for a symmetric matrix where the numbers on the main diagonal are not given but equal

Is the matrix diagonalizable for all values of t?


Should we create a MATLAB new community?


Installing ubuntu on a separate hard drive


Reject or end a call from the Android API?


Should all fields in a web form be the same length?

Should I vary input field lengths in a single page checkout form?


How to link the window close (red x) to a function to close all threads in PyQt?

PySide / PyQt detect if user trying to close window


Hints for java.lang.String.replace problem?

String replace method is not replacing characters


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


A Good Book for Mathematical Probability Theory


How to hide the original confirm in JavaScript onbeforeunload?

How can I override the OnBeforeUnload dialog and replace it with my own?


Find the general solution of $\sin^2 x = \sin^2 \theta$.

Prove $ \sin(A+B)\sin(A-B)=\sin^2A-\sin^2B $


How to replace Ubuntu with Windows 10 without cloud backup or losing any data


Statistical Learning book with theoretical content

Textbook on the *theory* of neural nets/ML algorithms?


Lie group embeddings $SU(5) \supset SU(3) \times SU(2) \times U(1)?$

Lie group embeddings $SO(10) \supset SU(3) \times SU(2) \times U(1)?$


logistic regression - unbalanced classes

Does an unbalanced sample matter when doing logistic regression?


Unable to find in Play Store (Item Not Found)

The Play store link for the beta gives me a 404


Caused by: java.security.UnrecoverableKeyException: Cannot recover key


Rigorous proof for if $\operatorname{Corr}(X,Y) =1$ then $X = a Y + b$ with $a>0$

Proof that $\rho = \pm1$ implies linear combination


Character encoding for music symbols in mySQL


C++ template - type/value mismatch at argument

c++ type/value mismatch at argument 1 in template parameter list


Renaming: How to attach a word or rename multiple files


What is the difference between fglrx* and fglrx?

apt-get remove with wildcard removed way more than expected. why?


Schengen Visa 90/180 rule with intermittent work-permit from Sweden

Question regarding the 90/180 days Schengen rule and national (type D) visas


my email validation in java script is not working properly

How to validate an email address in JavaScript


What's the most commonly used unit testing framework for different types of Ruby applications?

What is the community-preferred Ruby unit testing framework?


Connecting two points on the boundary of an open, connected and bounded set $Q\subset \mathbb{R}^2$ with a path $\gamma\subset \overline{Q}$

Is the closure of path-connected set path connected?


How to solve $T(n) = T(n/3) + T(n/4) +5n$ using iteration method?

Prove that $T(n) = T(n/3) + T2n/3) + 5n$ is $O(n log n)$


How to create a video from images with FFmpeg?


Determine the rank of each row in a sorted table


Computer doesn't boot up, shows PXE error and/or "operating system not found", "no bootable device", "insert boot media", or other similar error


Opening MXD saved in one version using earlier version


Eigenspace of the companion matrix of a monic polynomial


JavaScript: client-side vs. server-side validation


How to handle categorical predictors with too many levels?

Principled way of collapsing categorical variables with many levels?


Installing File Geodatabase (*.gdb) support in QGIS?


Erroneous Output in Python and The Usage of OR


How to join pairs of strings inside a list


What resolution should a large format artwork for print be?


Limit On Number Of Simultaneous Actions?


.openPopup() in Geojson data in Leaflet?


How do I display 2 sections side-by-side?


Non significant main effect after controlling for covariates

Is there a difference between 'controlling for' and 'ignoring' other variables in multiple regression?


Does deleting own answers result in a penalty? (too many or regularly)

Does deleting my own question or answer attract penalty?


Getting null pointer exception while getting tag of card view

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


What style features disproportionate figures, bright colours and noisy shadows?

What type of illustration is this with solid colors?


How to display Returned entries in one row seperated by commas or another character

Can I concatenate multiple MySQL rows into one field?


impossible to modify encapsulated variables

Changing the value of an element in a list of structs


If we have a set of n linearly independent vectors in $R^n$, does that mean they span $R^n$?

Does a set of $n$ independent vectors in $R^{n}$ always span $R^{n}$?


Calculation of $\lim_{n\to \infty}\prod_{r=1}^{n} \left(1+\frac{r}{n}\right)^{\frac{1}{n}}$


How do I access my SHiFT code golden keys in the Pre-Sequel?


Notation for repeated application of function


not being able to use methods of subclass using a reference variable that is of type superclass

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


Get selected value in dropdown list using JavaScript


What is the difference between :after and ::after?

Should I use single or double colon notation for pseudo-elements?


closure inside a for loop - callback with loop variable as parameter

JavaScript closure inside loops – simple practical example


How to add new item to the Windows 10 "All Apps" section

How do I add a new program to the Start Menu?


PhD in Quantum Computing - useful outside of academia?

What are the potential pitfalls of having a PhD?


Blender image output is greyish and not white


How do I find out what filling up the space in dev/sda2 using ssh command

Finding what's using all the space in *nix


How to write this symbol for a Banach algebra?

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


Best transportation option from San Jose Del Cabo airport to Cabo San Lucas

What are the current options for getting from SJD airport to Cabo San Lucas and vice versa?


submit button can't send action with <a class

i want a anchor should act like and input type submit button


Content block doesn't show when query is added to the URL

How to show a block on pages with url parameters?


How do I grant sudo privileges to an existing user?

How can I add a new user as sudoer using the command line?


Rank of matrix whose coefficients are $a_{i,j}=\gcd(i,j)$

Determinant value of a square matrix whose each entry is the g.c.d. of row and column position


Keep my 3d player from jumping if he's not on the Ground

How to stop jumping again when character is in air (double jump)?


Do I have to use “do” in any “wh-” question?


Show that there cannot be a analytic function on $B(0,1)$ s.t if $|z|\to 1$, $|f(z)|\to \infty$.

Does there exist a holomorphic function with the following property?


How to get around the ConcurrentModificationException in Java?

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


What does the phrase "all but" signify in following text?


Why are native array functions are so much slower then loop

Why most JavaScript native functions are slower than their naive implementations?


Gaming performance difference between Windows and Ubuntu


Location listening in Fragment causing NullPointerException

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


How do I change "Show Applications" button position from right to left?

How do I move the "Show Applications" icon in Ubuntu Dock?


Why can array constant only be used in initializer?

Why can array constants only be used in initializers?


When should I say "AM" / "PM" and when should I say "o'clock"?


Prove complete metric space for $I=]0,\infty[$ with $d(x,y)=\lvert\ln(x)-\ln(y)\rvert$

Proving that given metric space is complete: $X := (0,\infty)$ and $d:=|\ln(x)-\ln(y)|$


Difference between 'went home' and 'went to home'

Why is this sentence wrong? "He went to home."


MacBook Air battery not charging - very strange issues

MacBook Pro early 2015 not turning on and not charging


Is there have the best way to count all rows in table mysql?

MySQL: Fastest way to count number of rows


Which Schema.org type is right, "Blog" or "BlogPosting" for a simple blog article?


Are unbalanced datasets problematic, and (how) does oversampling (purport to) help?

When is unbalanced data really a problem in Machine Learning?


I cant get the correct values of list in function returns python

List of lists changes reflected across sublists unexpectedly


Is "to one of the most genuine people I know" correct?

Correct usage of "persons" (vs. "people")


How would I switch from an Array to an ArrayList?


getting numbers day between two dates range include start date and end date

Calculating the difference between two Java date instances


Is it possible to trade Pokemon with other trainers?


Find a bijection to prove a fact about integer partitions


How to interpret the USB MacBook maximum monitor resolution?

MacBook [Pro] - how many displays, what resolution/frequency?


#Java Help. Creating a simple chatbot that enables user to create their own questions and answers


Pass a Variable in Function in an addEventListener

How to pass arguments to addEventListener listener function?


Property of continuous functions and monotonic functions on disconnected sets

Increasing real valued function whose image set is connected


Finding watershed area for each point in river network using DEM using QGIS


Visual Studio 2008 Macro Keyboard Shortcuts Not Working


Modify CSS of the :after pseudo-element using jQuery

Selecting and manipulating CSS pseudo-elements such as ::before and ::after using javascript (or jQuery)


Sum with binomial coefficients: $\sum_{k=1}^m  \frac{1}{k}{m \choose k} $


How would I make a random word generator in python for a variable?

How to randomly select an item from a list?


ctrl key not working [windows 10 laptop]


Change pole angle without affecting mesh

How to Set/Calculate pole angle of IK constraint so the chain does not move?


Creat Like Service That Keeps On Running When I Run Project

How to run a background task in a servlet based web application?


issue adding NSMutablearray to other NSMutablearray?

Cannot add items to an NSMutableArray ivar


Attempt to update profile picture triggers "email address already registered error"

Unable to update user profile on Stack Overflow "This email address is already registered"


Is there an equivalent in Ubuntu to /var/log/yum.log in Redhat?


Hard drive capacity on Windows server 2008 r2 not fully recognized


How to make Import recognize a new file extension?

How to build a bvh (a motion capture file format) player in Mathematica?


20px gap between top of ImageView and bottom of status bar after returning from iAd animation

Fullscreen UIView with Status bar and Navigation Bar overlay on the top


Proof of inequality $n!\leq(\frac{n+1}{2})^n$

Proof that $n!\leq {(\frac{n+1}{2})}^{n}$


Can I fly back to Italy with receipt of renewal of residence permit if I applied for the renewal 2 weeks before my permit expired?


Can I use .ready to attach a click handler to a class created after the document is loaded?

Event binding on dynamically created elements?


Why second countable for definition of manifold?

Why is important for a manifold to have countable basis?


No Wi-Fi after dual-boot of 20.04 on Lenovo s230u


Feature Request: Some privileges are activated at 1 reputation


The ordinary differential equation $\frac{d^2y}{dx^2}-q(x)y = 0$ , $0≤x<∞$ , $y(0)=1 $, $y'(0)=1$ multiple choice question

The differential equation $y''-q(x)y=0.$


How to solve "Unresolved inclusion: " in a C++ file in Eclipse CDT?


Prove that : $a_n>0$, Then, $\sum_{n=1}^\infty a_n$ converges iff $\sum_{n=1}^\infty \sin(a_n)$ converges.


Still Reachable Leak detected by Valgrind


Where is the manpage of the set builtin?

How to make `man` work for shell builtin commands and keywords?


Is it safe to unplug a UPS during operation?

Testing a UPS by unplugging it from the wall


Test for multiple values in an if statement in C#


Why does the electric dipole moment of the electron tell us about its sphericity?

What is the mass density distribution of an electron?


Allow non-root process to listen on port 80 without doing anything drastic

Bind to ports less than 1024 without root access


getting a distributed spacing for math expressions in tab


At what height should I drop my kids from to prevent getting splashed?


How to match sum of two or more objects?

FreeQ and arguments of Hypergeometric2F1


How do you print coloured text in the python console

How to print colored text to the terminal?


protected variable from super class not visible from subclass in different package

Why can't my subclass access a protected variable of its superclass, when it's in a different package?


How do I restore my KDE desktop to default?


Is it possible to apply textures in Blender 2.8?

Blender 2.8 - do Materials always have Textures?


Can't boot Windows 10 after Ubuntu 16.04 was installed

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


How do I dispute the auto-award of a bounty on a question on Stack Overflow?

There should always be a way to intervene and stop a bounty from being auto-awarded


Best introductory text on elementary number theory that is concise


Maclaurin expansion of $(1+x)^{82}$ and its accuracy

Finding the value of $1.1^{82}$ using $(1+x)^{82}$ to a certain accuracy


In ZFC, is the Axiom of Power Sets implied by the principle of restricted comprehension?


Is it possible to declare default argument in Java in String?

Does Java support default parameter values?


Is there a way to get notifications whenever something in my server crashes? (like apache2, mysql, ect' that cause the website not to work)

What tool do you use to monitor your servers?


what is link baiting? What is the process?


Arguments are passed by reference or not in Python


Can I use a paired t-test when different subjects have different number of data points per condition?

Paired t-test when each data point was repeatedly measured different number of times?


How to extract the bytes from a string variable in Python?

How to convert string to byte array in Python


Rescuing "command not found" for IO::popen


Child theme - overriding add_image_size by a child theme


find: ‘ls’ terminated by signal 13 error


Filesystem image made with dd sometimes fails--How to Analyze?

Using dd to clone a disk while mounted - risks?


Why is the term "information" used to describe a physical system


#1241 - Operand should contain 1 column(s) how to fix?

MySQL - Operand should contain 1 column(s)


Fatal error: Call to undefined function session_register() in /home/bakewell/public_html/inventory/config.inc.php on line 36


Selecting Binary Classification Probability Threshold

Changing threshold in logistic regression


How does a filtering capacitor smoth a changing current?


Using color in figures for economics journals

Are there good reasons to avoid using color in research papers?


Upgrade from 15.10 to 16.04 - "no new release found"

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


++a and a-- output the second always as same as the forward one in C code

What is the difference between ++i and i++?


Techniques for securing mod_php for shared hosting (WAMP)?


How to start comparison when I have values inside BST?

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


Why does the 55-250mm blur the background nicely and easily while the 18-55 does not?


Scroll inside an EditText which is in a ScrollView

android: ViewPager and HorizontalScrollVIew


How should I wire a ceiling fan when there's only three wires in the box?


how to resize objects with resizing form using mouse


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


Why I'm not able to call the javascript AJAX function in following scenario?

How to call an AJAX function on anchor tag?


Prove that in ring $\mathbb{Z}, \forall a,b \in \mathbb{Z} $, $(a,b) = (d)$, where $ d = \mathrm{gcd}(a,b)$

$(m,n) = (\gcd(m,n))$ as ideals in $\Bbb Z$


How to change to the Ubuntu desktop using the GUI (not Command Line)?


Why does adding a subsurf modifier cause this large flat face to deform?

Why does subsurf modifier cause weird deformation at the end of a cylinder?


Does there exist a continuous bijection from real line onto the unit circle?

Continuous bijection from $(a,b) \to S^1$?


How to migrate SQL2014 to Azure SQL in short time (scripting)?

Migrate on-premise SQL Server databases to Azure SQL Database


Can I change the travel dates on my Schengen application form before the date of the interview?

Can I change my flight dates after I get my Schengen visa?


Ajax request to upload image and save in server

How can I upload files asynchronously with jQuery?


How to change background color in diffuse color render pass?

Can Blender render pngs with the background transparent?


Nonexistence of a continuous injection from $\mathbb{R}^n$ to $\mathbb{R}$, for all $n \geq 2$.

Continuous injective map $f:\mathbb{R}^3 \to \mathbb{R}$?


Concerning the U.S Visa Waiver Program and job hunting

Is it permitted to look for a job while visiting the US under the Visa Waiver Program?


Size of zero pixels in CSS with or without 'px' suffix?

'property: 0' or 'property: 0px' in CSS?


Send complex data type from servlet to jsp


Request the ability to move to chat before it is suggested

Is it possible to import comments into a chat room without the link appearing?


Copy a same audio file multiple time in another audio file

Loop audio file from the command line (gapless) or into new file


I am on a MacBook Air and using a guest account. I am trying to access a USB, but I can't

How do I transfer a file from a guest account on a MacBook Air?


Close a window from view model using MVVM light

How should the ViewModel close the form?


How to make Question visible on top in stack overflow

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


"Hard disk failure is imminent" warning from HP desktop – is the drive really dying?

Seriousness of a "Smart" disk error. How long will it last?


What is the usecase of super() in simple words

Understanding Python super() with __init__() methods


Try catch isn't catching Exception, Notimplemented, or notsupported exceptions

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


AJAX script error "SCRIPT5: Access is Denied"


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


Why can't sudo redirect stdout to /etc/file, but sudo 'nano' or 'cp' can?

Redirecting stdout to a file you don't have write permission on


GNOME has grey bar on top and bottom after upgrade from 17.04 to 17.10, how do I fix it to how it's supposed to look?


Trying to Get the Most Cooling Power out of TEC Peltier Element: Smaller or Larger Peltier?


Are people really going to use public IPv6 addresses on their private networks?

Switching to IPv6 implies dropping NAT. Is that a good thing?


What is the next step of proving that $\lim_{n\to\infty}s_nt_n=0$ if $s_n\to0$ and $t_n$ is bounded?

If $(a_n)$ is a null sequence and $(b_n)$ is bounded, then $(a_nb_n)$ is a null sequence


Strange render, though in object mode I can see the object just fine


Why does Linux use SCSI drivers for non-SCSI devices?

Why do my SATA devices show up under /proc/scsi/scsi?


Room links in chatrooms 'eat' the rest of text

Chat room links with text after them get converted into one-boxes


Blank Desktop after Login on Ubuntu 14.04

disk is full, but cannot find big files or folders


When the notification bar is expanded or collapsed by user neither of activity lifecycle methods gets called


Create a Custom Distribution of Ubuntu 15.04


How do I remove old kernels despite 100% inode use in /usr?


Is it possible to upgrade the ram of MacBook pro 2017 from 8GB to 16GB in India?

Solder new RAM in a 2015 Retina MacBook Pro


Why is the singularity of the Big Bang not considered to be the center of the Universe?


How to create a \newenvironment{name}[num]{before}{after} with a parameter in {after}

Why can't the end code of an environment contain an argument?


What would be an example of a convex set in one dimension?

How can we define convexity in one dimension?


Why does $\int_a^b fg\, dx = 0$ imply that $f = 0$?

How can I show that $f$ must be zero if $\int fg$ is always zero?


Very short short-story of a near-future with advertisments on everything, even toilet paper

Identifying a short story about advertising


Type cannot be used as type parameter 'T' in the generic type or method - Why?

Why does a generic type constraint result in a no implicit reference conversion error?


Getting Null pointer exception while running the below script using Selenium WebDriver

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


Why does my laptop overheat and discharge faster in Ubuntu than Windows?

Why does my computer get less battery life with Ubuntu compared to Windows?


can i use my visa Schengen for my first trip to a different country other than it issued from?

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


Issue when sudo something after a hostname change

Error message "sudo: unable to resolve host (none)"


Why is "cupboard" pronounced with a silent "p"?


How to get parent custom field from attachment


jQuery using multiple buttons of the same class to return a value

Getting the ID of the element that fired an event


Can I travel straight to Holland from the United Kingdom on my Etats Schengen multi visa

Can I visit other Schengen countries on a long-term Schengen visa or residency permit?


can I use a Junit Test as a precondition For another Junit Test

How can I specify JUnit test dependencies?


Dealing with "difficult" usernames in targeted comments


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


Why do people sometimes use the past perfect form of a verb when the past would suffice? (e.g. "you had mentioned")


UNIX: How to extract date from a variable storing a UNIX DATE

Extract date from a variable in a different format


Prove that a commutative ring without proper ideals is a field

A commutative ring is a field iff the only ideals are $(0)$ and $(1)$


Finding rational solutions to this system of equations

Find three distinct triples (a, b, c) consisting of rational numbers that satisfy $a^2+b^2+c^2 =1$ and $a+b+c= \pm 1$.


Is it normal to have UDP packet loss with mtr to 8.8.8.8?

how to protect udp packets from packets loss?


Problem with sudo apt get update: The repository cdrom... does not have a Release file


If $ar + bs =1$, then $\gcd(a,s) = \gcd(r,b) = \gcd(r,s) = 1$

Show that if $ar + bs = 1$ for some $r$ and $s$ then $a$ and $b$ are relatively prime


How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?


How can a word for 'the act of Xing', semantically shift to mean 'the thing Xed'?

How did 'consideration' semantically shift to mean 'something given in payment'?


I am Nigerian and I need to travel from India to US

Can I apply for and receive a US visa when residing in country other than my own?


How to quickly use jquery post to post files?

How can I upload files asynchronously with jQuery?


How can I create a public static method while implementing an interface in c#?

Why Doesn't C# Allow Static Methods to Implement an Interface?


How do I return the response from an asynchronous call?


How can I write text to a file in bash while keeping its previous contents?

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


Why does this program not turn my bitmap 90 degrees?

I don't understand why this is causeing my program to crash?


Why can a log backup not be taken without first taking a full backup?

BACKUP LOG cannot be performed because there is no current database backup


Pass a PHP string to a JavaScript variable (and escape newlines)


Distributed shared memory library for C++?


Package draftwatermark: no watermark on the first page

latex : Exclude draftwatermark from specific pages


Possible to get 304 status from xhr requests?

How to check if jQuery.ajax() request header Status is "304 Not Modified"?


How do I get a Wireless N 150 PCI Adapter DWA-525 working?

Need Drivers for D-link DWA 525 PCI Wireless adapter


How can I merge or concatenate two or more MP4 files creating another MP4 file?

How can I merge two mp4 files without losing quality?


SQL Server 2016 login language display is wrong

SQL Server 2017 login language display is wrong


Warning: preg_match() [function.preg-match]: No ending delimiter '^'

PHP regular expressions: No ending delimiter '^' found in


How to change to helvetice font in class based on class option?


10k-tools lists items I've already dealt with

10k flag tools no longer exclude posts I've already reviewed


cannot connect to wifi on ubuntu 14.04.3


Overly generous offer from buyer - is it a scam?

Someone wants to send me cash by DHL. How's this scam supposed to work?


The infamous java.sql.SQLException: No suitable driver found


Regex for finding the text inside parentheses followed by @en : "example"@en

RegEx: Grabbing values between quotation marks


Blender 2.90.0 scripting (copying selected mesh)

How to duplicate an object in 2.8 via the Python API


Is the Canon t2i or new Nikon d90 better for an entry DSLR?

Is there any significant difference between Nikon and Canon?


Storyboard animation based on control template's control property

Storyboards can't find ControlTemplate elements


Can/should a user earn Populist over his accepted answer?


How to fix the session_register() deprecated issue?


Transit visa needed for layover (< 24 hrs) in Germany?

Is a Schengen visa/transit visa required for a transit flight through two Schengen airports?


'asked today' shown on question 'asked 18 hours ago'

Possible bug in sidebar "question asked:" date


Prove by induction that this sum is not a natural number.

Is there an elementary proof that $\sum \limits_{k=1}^n \frac1k$ is never an integer?


Multiple tourist visa short period Indonesia


How to tell git to ignore individual lines, i.e. gitignore for specific lines of code


Using "<" for input redirection of a file with commands that already handle files


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


Why is $\infty \cdot 0$ not clearly equal to $0$?


If $f$ and $g$ are continuous on $[a,b]$, $f(a) \le g(a)$, and $g(b) \le f(b)$, prove there is a $c$ in $[a,b]$ with $f(c)$ $=$ $g(c)$.

Proving that $f(x) = g(x)$ for some $x \in [a,b]$ if $f,g$ continuous, $f(a)  g(b)$


CSS: Vertical align a image inside a div

How can I vertically align elements in a div?


Handling passwords used for auth in source code


cannot run perl program: Can't locate Time/Piece.pm in @INC with perl5.8.4 and Can't locate DBI.pm in @INC with perl 5.12.3

What's the easiest way to install a missing Perl module?


\xrightarrow not changing size with \scriptstyle and \scriptscriptstyle


Unformatted string in new close-vote review queue format

Visual design changes to the review queues


Shouldn’t “would dare mess with me” be “would dare TO mess with me”?

"Dare speak" vs. "dare to speak" vs "dares to speak"


What should I do to preserve a 100-year-old photograph?

How to preserve and store very old photos (50/80 years old)?


Change HTML Produced by wp_list_comments()


Does the sequence $x_n = \sin\left([\text{first } n \text{ digits of } \pi] \cdot 10^{n - 1} \right)$ converge?


Is there any way to replicate the implementation of LIKE operator of SOQL in Apex

How to emulate SOQL LIKE matching in Apex?


Derivative of a analytic function at its fixed point

Estimate on the derivative at fixed point


How do I resolve unmet dependencies after adding a PPA?


Make rasters to show the extent of certain data values


The future of meta.stackoverflow and meta.stackexchange

Stack Overflow is getting a Meta of its own


Where can I get Ubuntu for a smartphone?

What hardware does Ubuntu Touch support?


How to read line by line from a text file storing the values in a arrayList, in java?


Epson Printers cannot use after Window Update

Epson LX-310 not working after Cumulative Update 2017-11 Windows 10


How to use manual partitioning during installation?


Geometry problem (proving a relation between sides of a triangle)


Finding all roots of a function within an interval

About multi-root search in Mathematica for transcendental equations


PHP __PHP_Incomplete_Class Object with my $_SESSION data


Space between border and content? / Border distance from content?

creating spacing between an element and its border


Trying to play video in VideoView but app crashes

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


Table of contents spacing with \addcontentslin{toc}

Roman numerals become “too wide” in table of contents


Starting a question with 'Could you' vs. 'Can you'?


Find out which process is responsible for starting the current one

How to get parent process in .NET in managed way


How do I write the mathematical equation for ARIMA(0,0,5)(1,0,1) period 12?

How do I write a mathematical equation for ARIMA (2,1,0) x (0,2,2) period 12


Find $P(X\ge 0)$ given distribution of $X$


Split URL & return components seperately in php


How to find the peak current and Vswce of this IC - NCV3063

Calculating the peak current of my boost converter


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


I can't install libtiff on my 64-bit Ubuntu


Prove these two elements are not associated in $\mathbb Q[x,y,z]/(x-xyz)$


Derive Weierstrass product theorem from Mittag - Leffler theorem

Use Mittag-Leffler to prove Weierstrass Factorization Theorem


When modifiers applied, sculpting doesn't work correctly


Can I use $V-E+F=k$ when dealing with spheres and great circles?

Recurrence formula for division of a sphere by n great circles


X and Y are sets. X is infinity and Y is countable. How can I show that #X=#(XUY)

Cardinality of the union of infinite and countable sets


How do you make a deep copy of an object?


Please Explain Baby Rudin Theorem 1.20 (b) By Using Statements on Baby Rudin


Is there any way to skip the callbacks dynamically from controller as we did like save(false) for validation


How to show that $\det(AB) =\det(A) \det(B)$?


Can a four-divergence be added pure Yang-Mills Lagrangian to alter the action?

Do an action and its Euler-Lagrange equations have the same symmetries?


Provide an easily discoverable way to get the full URL to an answer


Does R have quote-like operators like Perl's qw()?


Questions with a score of -1000 and lower are not rounded in the iOS app

How can I report bugs with or request features for the Stack Exchange mobile apps?


uploading a simple file using php not working


How can I scale or reduce size of an Image in a post?


What's the difference between \newcommand and \newcommand*?


How to get rid of white space between css horizontal list items?

Why is there an unexplainable gap between these inline-block div elements?


How to run background service in phonegap even will close

how to run the android phonegap application in background(after closing the application)?


Authentication & session helpers in Webapp2?


Bruce Wayne's death in The Dark Knight Rises

Couldn't people see Wayne was alive and link his disappearance to Batman's "death"?


Help to draw an arbitrary surface with in TikZ

How to draw arbitrary closed surface with TikZ?


All possible array initialization syntaxes


Html data showing � (questions marks) instead of characters


How to install Windows on USB drive on MacBook?

Is it possible to use Boot Camp with Windows 10 from an external HDD?


Java RegEx: How to remove substrings encased in specific delimiters

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


Bash vulnerability CVE-2014-6271 (Shellshock) fix on Debian 6.0 (Squeeze)

Legacy Debian versions and Bash Shellshock


How to create an Automator service to run an xattr script to remove extended attributes on selected files?

How to create an Automator service to run a script on all files in a folder


How do I use shell variables in an awk script?


NullPointerException when insert app: layout _ behavior

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


pygame.error "couldn't open image.png" only in command prompt


Let $75!$ be in base of $10$ , then what is the last two digits of it in the base of $3$?

Understanding the proof of a formula for $p^e\Vert n!$


What is "Ext" short for in "Ext Functor"?


Type of vs Types of, kind of vs kinds of


while loop including or " while DIF != 'Y' or 'N': "

How to test multiple variables against a single value?


How do I limit the number of rows returned by an Oracle query after ordering?


How to determine a schema version at runtime

How can a group track database schema changes?


Does energy do anything else other than work?


I left porkchops out to thaw over night can i cook them still

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


Why double equal to in Strings work so differently?


Getting "Webpage timed out" while trying to open links using Google search results


How do I install NVIDIA GPU drivers properly?


Headphone jack broke and got stuck in headphone socket MacBook Pro


How did Maz Kanata acquire Luke's lightsaber?

In Star Wars: "The Force Awakens," how could this lightsaber have turned up where it did?


Umlaut character not accepted via keyboard (codepage 65001, UTF-8) to be read by perl script

How do I read UTF-8 with diamond operator ()?


Oracle SQL query: Retrieve latest values per group based on time

Fetch the row which has the Max value for a column


Invoke a method with optional params via reflection

Invoking methods with optional parameters through reflection


Javascript - Console.log does not log correctly

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


how to make a bash alias to a script in folder

In Bash, when to alias, when to script, and when to write a function?


Getting even number of heads in a coin toss - unbiased coin

A coin is tossed $n$ times. What is the probability of getting odd number of heads?


Can stimulated emission happen in nuclear energy states?


How I Can Create A Launcher For a Program

How can I create launchers on my desktop?


"There exists some people..." or "There exist some people..."?


iOS Facebook connect not working when user has FB's app installed?


Can't ask question on Arqade because I've asked too many recently

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


Event binding on dynamically created elements?


How to define a timeout for unsused session on sshd?

What is the default idle timeout for OpenSSH?


Battery charge status decreases while plugged in charging


Importing shapefile into AutoCAD Map 3D?


How to move JLabel from one JPanel to another when a button is clicked?

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


Show that if $a$ is a divisor of $bc$ and $(a, b) = 1$, then $a$ is a divisor of $c$.

If $\gcd(a,b)= 1$ and $a$ divides $bc$ then $a$ divides $c\ $ [Euclid's Lemma]


Why can templates only be implemented in the header file?


PYTHON ERROR: IndentationError: unindent does not match any outer indentation level


": not found" and syntax error in my first ever shell script

Bash/Korn shell script edited on Windows throws error '...^M: not found'


Proof that $\sum\limits^{\infty}_{i=0}{iP(X > i)} = \frac12(E(X²)-E(X))$ for $X$ nonnegative and integer valued


Sci-fi story about an alien AI satellite passing through the solar system

Looking for the origin of a perspective on religion


debian apt install broken after deleting python

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


Existence of mutually disjoint subsets of $\Bbb R$ which are countable and dense in $\Bbb R$

Uncountable number of mutually disjoint countable sets in $\mathbb R$


Safely turning a JSON string into an object


How to run a bash script from cron without being a root?

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


Saving an entire Bundle to SharedPreferences


What to do before you sell, give away or trade in your iPhone, iPad or iPod touch?


When should we use \begin{center} instead of \centering?


Getting error "Failed to write core dump" while writing a multithreaded program

Possible causes of Java VM EXCEPTION_ACCESS_VIOLATION?


Cannot launch an activity in android using intent

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


Can you use a plural of Life as Life's when using as "Life's Boat" or "Life's Boat's"

Why is the plural form of "life" "lives", while the plural form of "still life" is "still lifes"?


QGIS - Determine percentage of coverage of buffer for census tracts

Calculating size of particular area below buffer in QGIS?


Why are there so many different ways to measure disk usage?


Is it possible to use Views for listing data created in a custom module?


How to successfully restart a network without reboot?


Send Document PDF/Word with attached file - merged fields

Rendering a VF page as PDF and saving it as an attachement


What are hidden facts of Complex number?

"Where" exactly are complex numbers used "in the real world"?


If an enemy is just below a 10-foot-high ceiling, are they in melee range of a creature on the ground?


What is the difference between the *.ubuntu.com wikis?


r - How to add row index to a data frame, based on combination of factors

Numbering rows within groups in a data frame


Why do the measurements of this object seem erroneous?


Node js : How to access local variable between the methods

What is the scope of variables in JavaScript?


How to find out whether item is updating in SharePoint designer workflow?

Did my workflow run on item changed or item creation?


.htaccess rewrite rule, extract number to query variable

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


Has JKR ever talked about the inspiration of creating the Horcrux idea? Is it related to the One Ring?


Terminal shortcut to go to beginning of command?


How to deal with players that wants their characters to do automatic perception, stealth and searching for traps/secret doors?

How should a GM deal with "standing orders?"


Prove that $|A| \geq |B|$ implies $|B| \leq |A|$

There exists an injection from $X$ to $Y$ if and only if there exists a surjection from $Y$ to $X$.


Any integer in 99, 999, 9999... sequence is not a perfect square


String passed as function parameter is undefined


How to set GRUB default, not Windows Boot Manager

Windows 8 removes Grub as default boot manager


Is it safe to drink the tap water in Istanbul?


error with (sudo apt-get update ) in ubuntu 20.04

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


How to convert a handwritten text on chalkboard to a vector?

Convert a line drawing from raster to vector


Computational complexity of an n-dimensional Fast Fourier Transform?

Computational complexity of the FFT in n dimensions


Encryption/permissions - HTG Folder and locker.bat


Can an 85w MagSafe charger (model#: A1172) be used safely with a MBPro 13.3” retina?

Can I use 45/60/85W MagSafe era MacBook chargers interchangeably?


Identifying the center of the dihedral group of order $2n$

Center of the dihedral group with odd and even number of vertices


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


What is a word for deliberate dismissal of some facts?

What word describes interpreting evidence in such a way as to reach a desired conclusion?


How does the "computer fan with magnets" generator "work"?


Solutions to $\int\limits_x^{x^2} f(t)\ dt=\int\limits_1^x f(t)\ dt$?

How find this function $xf(x^2)=f(x),x>0$


Matlab / M - pass a cell array into a function as input

MATLAB error: Undefined function or method X for input arguments of type 'double'


Calculating statistics on subsets of data

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


How do I measure the variability in time time-series power consumption patterns?


Reason for the inability of root to send a fatal signal to PID 1/init


Define additional math operators to be typeset in roman


Is Bohmian mechanics really incompatible with relativity?


How to Replace CentOS's GRUB with Ubuntu's GRUB

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


Why does JavaScript's document.cookie require a web server?

Why does Chrome ignore local jQuery cookies?


Filter JUnit Output to Only show exceptions that you don't expect?

Where do I configure log4j in a JUnit test class?


Proof by Induction: Number of bit strings of length $n$ starting with a 1 or ending with a 0


How Macbook Pro detects an external microphone through TRRS jack?

How do I build a TRRS headphone jack with a jack that is detectable by an iPhone


I have forgotten sql server sa password and I cannot connect with windows auth. How can I reset sql server password?


How can I check if a type is an instantiation of a given class template?

Doing a static_assert that a template type is another template


Question mark or bold citation key instead of citation number


why does function relates input to only one output?

Why Is a Function Defined As Having Only One Y-Value Output?


jquery replacewith() strip out javascript


How to bind additional mouse buttons to be modifiers (Shift/Control)?

How to map modifiers (e.g. CTRL) to mouse thumb buttons using xbindkeys


Asymptotic distribution of a weighted sum of chi squared variables beyond CLT?


Regular division of the perimeter of an ellipse

Calculating equidistant points around an ellipse arc


Google Cloud frequently doesn't have enough resources


Defining coordinate system for finding distance in meters

How do I get the distance meter value between two geometries in PostGIS?


CUDA rendering on Linux Mint or Ubuntu variants


Does “Marvel Universe” mean just Earth-616, or the whole multiverse?

How many Marvel Earths (Universes) are there?


Python 3 print() function with Farsi/Arabic characters

Python, Unicode, and the Windows console


How to close all windows or just quit mathematica from code?


Can a youtube video be embedded in an HTML Email


How to validate phone numbers using regex


java - NullPointerException in linked lists finding char

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


effective uid is not 0, is sudo installed setuid root?


null pointer exception in getPropertyMsg?


Do Indian citizens need transit visa for Thailand if going through DMK?

Does an Indian citizen need a Bangkok transit visa for a 10h 45m layover?


What word or phrase is like a more negative version of “astonished”?


How can I vertically align elements in a div?


Does the "truncation function" $\langle a,b\rangle : \mathbb{R} \rightarrow \mathbb{R}$ have an accepted name or notation?

Is 'clamp' a formally recognized mathematical function?


Best way to include table (of data) in a question


Does Steam install games to the / (root) partition?

Where is the steam directory folder in 12.04?


How to implement reCaptcha for ASP.NET MVC?


Weird stepping in bump map despite using 32-bit bump map image

Rendered image shows visible "line strokes" artefacts


In Arkham Horror, do 'leftover' successes after triggering a doom token removal still count?

In the Final Battle, when you remove doom tokens for rolling successes against an Ancient One do you stop counting successes for that roll?


Undo a git merge, keep commits that came later

How do you revert a faulty git merge commit


javascript 'Array of Object' after copying Altering original array as well

What is the most efficient way to deep clone an object in JavaScript?


Change the behaviour of Enter key in iMessage

How to make [return] behave as a [return] within Messages, Skype…


Code that produces plot in V5 doesn't work in later versions


Minimizing Application to system tray using WPF ( Not using NotifyIcon )


Can my commander ever not be my commander?


'Who' or 'which' in reference to companies

What is the correct relative pronoun for "government"?


Strange bug - std::regex matches only first two strings

Is gcc 4.8 or earlier buggy about regular expressions?


Where does Visual Studio look for C++ header files?


Trigger after insert calling method in class


Masters degree in business engineering or management engineering

Is it possible to obtain a Master's degree without Bachelor's degree?


How do I set an element of a doubly nested list in Python?

List of lists changes reflected across sublists unexpectedly


What are electrons holes and how they differ from free electrons?

What are "electron holes" in semiconductors?


Can you have a bibliography of equations?

List of equations, including equation contents and caption


Using "random" module inside a loop outputs the same result


Exclude one point distribution from another

Subtract the weights of one vertex group from another


Infinite series, injective function and rearrangement inequality


Determining subroutine argument evaluation order

Why are these constructs using pre and post-increment undefined behavior?


How to create a drop shadow only on one side of an element?


java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Switch.setChecked(boolean)' on a null object reference

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


GIMP 2.8.22 How to SELECT ALL text objects in all layers and change font size of all at once?


"I found that, on average, there are...." or "I found, on average, that there are..."?

Are there any rules on the positioning adverbs should take in a sentence?


Remote access solution for active and inactive sessions

What free Remote Desktop (server) solutions are there?


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


I work in a hospital or I work in the hospital

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


Why is this var still defined when the cb runs asynchronously?


How to convert MS Word 2007 file into JPG file?


How do I use reflection to call a generic method?


Why it is wrong to use jdbc in android application?

Android JDBC not working: ClassNotFoundException on driver


GLMM multilevel hierarchical model with R


What is the word that is used to describe the oversimplification or non-academic discussion of a complex issue?

Phrase to give a non-detailed answer/explanation


Different collation between System and User databases in SQL Server

SQL Server default collation vs database with different collation - potential problems?


Find the distribution of $X=\frac{\max\{U,V\}}{\min\{U,V\}}$

If $X$ and $Y$ are uniformly distributed on $(0,1)$, what is the distribution of $\max(X,Y)/\min(X,Y)$?


iMac (early 2008 macOS 10.11) showing colourful lines during startup

Mac turns off randomly and has lines on screen


Can I safely charge&use my macbook with the adaptor below?

Is the Macbook 12 inch's USB-C charger interchangeable with other USB-C chargers or devices?


How can I download apps from Google Play to my Tab using my PC's Internet connection?

How can I download an APK file from the Play Store?


Terraria: pre-hardmode bosses in hardmode

Can pre-hardmode bosses spawn in hardmode?


VWP: Multiple visits to the U.S. during more than 90 days

Does the 90 days VWP rule expire if you travel from the US to Canada?


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


object reference not set to an instance of an object #3

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


How to choose which viewport to render in?

How does Blender decide in which window it shows the render


How faster is the effect of force exerted by gravity?


Pythonic way of retry running a function

Can I set max_retries for requests.request?


What do the + numbers mean in a stack trace

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


MultiFile Add-on with single python file

Having trouble creating an Addon with multiple modules


How can I assign the output of a command to a shell variable?


Why do we use ctrl + c / ctrl + x / ctrl + z in terminal?

What is the difference between Ctrl-z and Ctrl-c in the terminal?


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


How to pass arguments to the power shell script from c#?/

Execute PowerShell Script from C# with Commandline Arguments


Extracting points from polygonz geometry in PostGIS using Python


PHP fwrite to csv file utf-8 not working


Did Boba Fett survive the Sarlacc encounter?


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


How to make an inserted figure's frame gradually fade?

Can fuzzy borders be added to external pictures programmatically?


A question regarding specific heat capacity


Preventing some parts of the pages of a site from being indexed

Preventing robots from crawling specific part of a page


How to determine equality for two ES6 class instances?

How to determine equality for two JavaScript objects?


Using PCA for finding features most affecting a given label

Using principal component analysis (PCA) for feature selection


How to use a shell variable inside sed's s command?

How to ensure that string interpolated into `sed` substitution escapes all metachars


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


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


Is Juju for automating installation of web application for customers?

Can I implement a SaaS infrastructure with Juju?


Failed to save undefined: No COMPONENT named markup://svg found :


Why and when would one begin with PCA on $X$ when predicting $y$?

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


How to change internal field name(column name) of sharepoint list?


Does the equality $1+2+3+.... = -\frac{1}{12}$ lead to a contradiction?


What is the name for the grammatical device of putting "not" after a verb to negate it?


The probability of choosing the third card

If you draw two cards, what is the probability that the second card is a queen?


Was there a brief system glitch which caused some questions to be posted twice?

New question asking form sometimes leads to accidental double posts of questions


How to make every n'th elements in a list in a list of their own?

How do you split a list into evenly sized chunks?


Generating EXE file for a java application

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


Show that holomorphic $f_1, . . . , f_n $ are constant if $\sum_{k=1}^n \left| f_k(z) \right|$ is constant.


Is there a way to find out which packages are used (rather than merely called) by a document?

Detecting unused packages in LaTeX document


How to know m-file location from within it?

Analogue of NotebookDirectory[] for scripts (to get the directory path of my script.m)?


Why can applesauce be used in place of oil?


How can I get QGIS Print Composer to print OSM map at desired zoom level?

Scale-dependent displaying of a layer using OpenLayers plugin?


What skills are necessary and/or recommended to become a graphic designer

Must one have a knowledge of fine art to be a Graphic Designer? Should all Graphic Designers know how to draw?


How to add 1 extra trade to a villager, without changing the other trades

Add a Trade to a Villager Using /data (1.14)


different php-versions on server with multiple v-hosts

Running two PHP versions (5.3 & 5.2) at the same time


Use of an unassigned local string variable

C#: Use of unassigned local variable, using a foreach and if


How to make a boolean false inside a while loop using a scanner


In Python 3, how do I round a floating point number up to a certain decimal place?

round() doesn't seem to be rounding properly


Is it possible to take input variables in shell?

How can I pass a command line argument into a shell script?


How to monitor bandwidth usage per process?

How do I find out which process is eating up my bandwidth?


Reading from file in Java is throwing a `NullPointerException`

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


What do the "Energy Impact" numbers displayed in the new OSX 10.9 mean and how are they calculated?

How does Apple calculate the energy consumption of a process in OS X Mavericks


Didn't you regret the "Association Trust"?

The association bonus should not enable users to vote on every site


Can you store the base64 encoded text that you get when encoding a file (txt) in a byte array?

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


How to add a Japanese name that does not appear in the Kotoeri registry? (OS X 10.11)

Adding words to Hiragana input's dictionary


Distro question - Which (current) linux distro works well with older laptops

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


Why isn't my dwarf's strange mood being satisfied?

Why does my dwarf stand idle when having a strange mood?


sudo apt-get update error in Ubuntu 18.04

How do I restore the default repositories?


Which is the badge awarded to the least amount of people?


Javascript Double indexing Associative "array" Object

Create new multidimensional Associative array from 2 arrays


How can I find the distribution of a stochastic variable X^2 if X is normal standard distributed?

Proof that if $Z$ is standard normal, then $Z^2$ is distributed Chi-Square (1).


CREATE TABLE IF NOT EXISTS equivalent in SQL Server


Is EU residence permit still valid for transit through London for a Non-EU citizen(post brexit)

The UK has voted to leave the EU. How does Brexit affect people traveling to the UK and vice-versa?


One object having two different colors and distortions

How to make all faces flip to the right/consistent direction?


I want to back up my Ubuntu so that I can restore it like a new install OS


How can I make it so I can run a specific program, just by typing its name in the console?


Why do (some) answers get more votes than their questions?


$\mathop {\lim }\limits_{n \to \infty } {1 \over {\sqrt n }} \left({1 \over {\sqrt 1 }} + {1 \over {\sqrt 2 }} +\cdots+{1 \over {\sqrt n }}\right)$

Evaluation of the limit $\lim\limits_{n \to \infty } \frac1{\sqrt n}\left(1 + \frac1{\sqrt 2 }+\frac1{\sqrt 3 }+\cdots+\frac1{\sqrt n } \right)$


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


How to know if the number of divisors in a determined range for a number is odd or even

Parity of number of factors up to a bound?


Proving $\lim_{n \rightarrow \infty} \frac{\sum_{r=1}^{n} r^a}{n^{a+1}}=\frac{1}{a+1}$

What is the result of $ \lim_{n \to \infty} \frac{ \sum^n_{i=1} i^k}{n^{k+1}},\ k \in \mathbb{R} $ and why?


Offseting lines with same symbology in ArcGIS Desktop?

Cartographic techniques for symbolizing routing data


Matrix over division ring having one sided inverse is invertible


Delete folder with '.' as the last character in folder name

Can't delete folder (in Windows 10) that contains special character


Installation of Windows 10 & Ubuntu 18.04, Ubuntu 18.04 & Windows 10


Can I install and use the video driver from the CD that came with my motherboard in place of the driver that comes with newer releases of Ubuntu?

Is it possible to install drivers used on Windows for Ubuntu?


How to change the background color in TikZ?


Show that $f=g$ a.e on $[a,b]$ implies thats $f=g$ on $[a,b]$.

Does $f(x)$ is continuous and $f = 0$ a.e. imply $f=0$ everywhere?


Pakistani Traveller in Australia, who wants to apply for USA visa

US tourism/business visa from non-resident country


How to get an outline effect on text in SVG?


Using \left( & \right) around amsmath's align delimiter ("&")


Is there a way to highlight overfull hboxes?

Is it possible to make LaTeX mark overfull boxes in the output?


Could not calculate the upgrade, what happened?


Is the 30-day saving throw for Feeblemind done with a victim's original Intelligence saving throw or do they use the reduced one?

Does Feeblemind's saving throw use the original or current intelligence of the target?


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


Number of homomorphisms $f:S_3 \to S_3$ when $\ker(f)=(1)$.

What is the number of automorphisms (including identity) for permutation group $S_3$ on 3 letters?


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


Why did Stack Overflow choose Microsoft technology?


How to make an Histogram where the data are strings?


Blender Materials not working / Viewport not rendering correctly

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


Post-nuclear war book where a boy ends up going into suspended animation until the Earth renews itself

What novel was set in a dystopian future and featured a boy searching for his missing father?


If $|f(x)-f(y)|<(x-y)^2$ for all $x,y \in \mathbb{R}$. Then $f(x)$ is constant.

Show $f$ is constant if $|f(x)-f(y)|\leq (x-y)^2$.


number of integral solutions of the equation

Find the number of integral solutions of $2x + y + z = 20$?


Unable to access variable from base class C++

Derived template-class access to base-class member-data


Where to buy cheap gadgets in Singapore?

Does Singapore have an electronics district something like Tokyo's Akihabara?


R data.table not preserving factor when applying function by group

data.table and table unexpected behavior


In (ListChangeListener.Change change) what is the use of "?" in it?


How to view folders with a large amount of files?

Browsing folders with more than 100000 images


How to override the hostname that DHCP configures on a CentOS7 box in AWS?

Correctly setting the hostname - Fedora 20 on Amazon EC2


Why is $0^0$ also known as indeterminate?


What three odd integers have a sum of 30?


How can I run a YouTube video in Picture in Picture mode on iOS?


Increase clickable area in comment flag dialog

Please wrap the entire comment flag description in a `` (making the entire text clickable)


How to give reference of a fragment in RecyclerView.ViewHolder? Please see details

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


Is $f(x) = 1$ equal to $f(x) = \frac{x}{x}$?

Why aren't the functions $f(x) = \frac{x-1}{x-1}$ and $f(x) = 1$ the same?


"User was removed" results in strange "daily reputation" information?

Daily reputation cap doesn't account for reputation * loss* due to bounty awarded?


Illustrator exporting to PDF vectors have gaps

Gaps between shapes when exporting from illustrator to photoshop


Ubuntu server installation on Ubuntu deskop

Reinstalling Ubuntu without formatting partition - what folders are deleted?


In inno setup how to set the unins000.exe with product name, product version and copyrights properties


What are the most common pitfalls awaiting new users?


Nothing can exceed the speed of light but what if we accelerate a particle that contain electron that have a speed near to speed of light?

If I run along the aisle of a bus traveling at (almost) the speed of light, can I travel faster than the speed of light?


How to smooth shade an object while retaining hard edges?


java null pointer exception Android studio


Redirect to new page using Lightning Quick Action

Lightning QuickAction (API) without modal


Unable to correct problems, you have held broken packages


Difference between "implents Comparable" and "Comparable"

What is a raw type and why shouldn't we use it?


How can I upload files asynchronously with jQuery?


Number of semi direct products: Right answer but unsure of reason

How to construct semi direct products between Q and H


Variable will not stay set after being modified inside of a PIPE while loop

Why is my variable local in one 'while read' loop, but not in another seemingly similar loop?


How not have page numbers when there is \maketitle

\pagestyle{empty} doesn't seem to work for page with \maketitle


Find the cardinality of the set $~\{t \in[0,3 \pi]: x(t)=0\}$

Number of zeroes of solution to $y''(x)+e^{x^2}y(x)=0$ in $[0,3π]$


installed ubuntu on old laptop and wifi adapter doesn't work


Why does parseInt yield NaN with Array#map?


Booting a Sony Vaio VGN FE31H from USB stick when BIOS has no such option


Find the number of persons who will go to the party

GCSE: Find the number of person that will go to a party


"Naturally occurring" non-Hausdorff spaces?


What is the difference between http://archive.ubuntu.com/ubuntu/dists/bionic-security and http://security.ubuntu.com/ubuntu/dists/bionic-security

Are security.ubuntu.com updates eventually merged into normal updates?


"I am done" or "I have finished" or "I am finished" or "I finish"


When i click on the button, it does not write data to the variable


How to recover data from Windows 7 Overwritten by Ubuntu 14.04?

Recovering broken or deleted NTFS partitions


Error installing packages on my linux server

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


"The cake was baked." Is "baked" a past participle or predicate adjective?

How can you tell when a participle is being used as an adjective?


Are "if" and "iff" interchangeable in definitions?


How to submit wordpress form (file & name) with ajax

How can I upload files asynchronously with jQuery?


NullPointerException on multidimensional string array

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


Defining a CSS which inherits from another

Can a CSS class inherit one or more other classes?


Copying portion of applet screen into image


Variables set in a bash 'while read' loop are unset after it


How to get the exact font in this document?

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


Sed is unable to copy temporary file to original file

Why is the suid bit having no effect on a shell or perl script?


NSUnknownKeyException xcode navigation controller

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


Quick way to solve simple probability questions like these?

If I roll two fair dice, the probability that I would get at least one 6 would be....


for triamgle $ABC$ prove that $\frac{a}{b+c}+\frac{b}{c+a}+\frac{c}{a+b} <2$

If $a$, $b$, and $c$ are sides of a triangle, then $\frac{a}{b+c}+\frac{b}{c+a}+\frac{c}{a+b}<2$.


What is the exact difference between diffusion, convection and advection?


A strange phenomenon on ST_Intersection() in PostGIS

PostGIS - Linestring doesn't contain a Point - Problem


Likelihood is "proportional to a probability". Which one?

Likelihood is not "proportional to" a single probability density?


Potential issues with passive voice usage

"A total of 10 babies is..." vs. "a total of 10 babies are..." vs. "Ten babies in total are..."


How to return the points {Xi,Zi} generated by ContourPlot

Getting a list of accurate coordinates from a plot


Teen sci-fi written before 2003 - body upgrade, synthetic bodies?

90s(?) book about a female protagonist, who was in an accident and is transplanted into a cyborg body


E: Sub-process /usr/bin/dpkg returned an error code (2) -- whats the problem with this?

Unable to install any updates through update manager/apt-get upgrade


Exception in thread "main" java.lang.UnsupportedClassVersionError: Unsupported major.minor version 51.0

How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version


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


Which one is correct - " There is only us here" or "There are only us here"

"There Is"/"There are" depends on plurality of the first list element or not?


Deferred Initiative Breaching A Shut Door

Can I choose to delay my turn in combat?


Existence of fixed point given a mapping


Why is the reputation of a post's author shown on all questions and answers?

Why does the reputation need to be publicly displayed?


What are the most common pitfalls awaiting new users?


Does $\sqrt{x}$ have a limit for $x \to 0$?


I have written a Java servlet code to download a file but getting an error

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


Ubuntu 16.04 doesn't see wireless network


How to equip a bike to avoid parts being stolen

Theft deterrents (in addition to locking up a bike)


Equality with Java generics: the subclass equals isn't called

Overriding the java equals() method - not working?


Late 70s/80s fantasy novel with interdimensional portals, an average man protagonist and an immortal beautiful warrior woman

Fantasy novel, magic sword and different worlds


is there a constant leakage current across axon even in absence of stimuli?

If the average resting potential of a neuron is -70 mV, why is there such a high ratio of potassium ions inside relative to out?


What is the collation useful for in mysql

What does character set and collation mean exactly?


What is the program of quantum field theory? What is its derivation?

Is "quantizing" a field different from "quantizing" a particle?


Pardon my ignorance, but how would the word 'ignore' convert to a noun in this context?

"ignorance" can also mean a "willful disregard of something"?


prove that the power series of $e^z$ does not converge uniformly on $\mathbb{C}$

What is the best way to show that the exponential sequence doesn't uniformally converge on an unbounded interval


"We certainly cannot have observers in the same reference frame disagree on whether clocks are synchronized or not"-is this true?

Can Special Relativity hold even without motion?


Javascript function not working in onSubmit for IE... getting no errors in Firefox

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


Is it really possible to create some mass only from equivalent energy?

What keeps mass from turning into energy?


Code Coverage not Displaying in Developer Console


Arcpy ListDatasets function to specific directories instead of workspace


Computing an infinite product $\prod_{n=1}^{\infty} e(\frac{n}{n + 1})^n * \sqrt\frac{n}{n + 1}$

Evaluation of $\prod_{n=1}^\infty e\left(\frac{n}{n+1}\right)^{n}\sqrt{\frac{n}{n+1}}$


Can infinite-dimensional vector spaces be decomposed into direct sum of its subspaces?

Vector space can be written as direct sum of subspaces


multiple figure environments spanning across page


Incorrect key file for table '/tmp/#sql_3c51_0.MYI'; try to repair it

MySQL incorrect key file for tmp table when making multiple joins


${\left(\frac{\partial}{\partial x_j}\right)}_p = {\left(\frac{\partial}{\partial y_j}\right)}_p$ if $x_j = y_j$?

Is $\frac{\partial}{\partial x_1}=\frac{\partial}{\partial y_1}$ if $x_1=y_1$?


Determine if the cyclic group $\langle(1234)\rangle$ is normal in $S_4$


How to split a string with "." separator in C


If I run along the aisle of a bus traveling at (almost) the speed of light, can I travel faster than the speed of light?


Area 51 discussions - Add to stackexchange app?


Is this compound noun compose of a group of many things plural or singular?


Showing $1<\frac{1}{\sqrt{1+x}}+\frac{1}{\sqrt{1+a}}+\sqrt{\frac{ax}{ax+8}}<2$ for all positive real $a$


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


Is it correct to use "learn" as a synonym for "teach"?


How to monitor SQL statements that are doing hard delete

SQL Server Profiler - How to filter trace to only display TSQL containing a DELETE statement?


How to load JSF / facelets library from a common directory?

Obtaining Facelets templates/files from an external filesystem or database


How does a photon lose intensity as it passes through space?

Why does a light wave fade as it travels through space?


How to replace ${} placeholders in a text file?


fmod() returning the same value in my simple C++ bank program


How to run and read cmd/git bash via python code?

How to execute a program or call a system command from Python


Jquery document.ready function doesn't load click event handler

Event binding on dynamically created elements?


Send me a picture of hers vs Send me a picture of her? Send me a picture of him vs send me a picure of his?


How to run installed ubuntu inside of installed windows

Run Windows inside a virtual machine on Linux for gaming


Large braces for specifying values of variables by condition


NE555 monostable timer circuit restart timer when trigger grounded in between

How to turn a pulsed signal into a continuous one?


From distribution function to probability measure


Don't join chat rooms automatically when following a link


Why does button id not show for content added to a div with JQuery?


Prove that $\langle x,y \rangle = 0$ iff $\|x+cy\| \geq \|x\|$ for all real $c$.

$x \perp y$ if and only if $\Vert x + \alpha y \Vert \ge \Vert x \Vert$ for all scalars $\alpha$


Is there a way to get index while iterating through a collection in Meteor?

How can I get the index of an array in a Meteor template each loop?


Is the gravity between objects other than celestials observable?

Can the effects of a person's mass upon the local gravitational field be detected and measured remotely?


Name of the function which has been passed as a parameter


Are the amount of spell slots per caster level derived with math or decided arbitrarily?

What spell slot count formula can I use to base my homebrew mechanic on?


Comparing ArrayList String element in jstl 1.2


Check if date is later than current date

How can I check if the current date/time is past a set date/time?


CloudDeploy Modules with dependencies on other modules

CloudDeploy a Manipulate with dependent functions


Undoing excel default / automatic delimiting

Easiest way to open CSV with commas in Excel


What word means 'to cause to be hidden', especially of dissenting opinions?

What's a word like "disregard" or "bypass" that means "hides"?


Branch cut for multi valued complex functions


Why does one sometimes get what appears to be arbitrary spacing with the subcaption package?

What is the use of percent signs (%) at the end of lines? (Why is my macro creating extra space?)


The center of a direct product of groups and Abelian groups

Center of Direct Product is the Direct Product of Centers


How do you defrag and remove cookies on Ubuntu


Prove that if $a^{170} ≡ 1 \text{ (mod n) and }a^{111} ≡ 1 \text{ (mod n)} \text{ then } a ≡ 1 \text{ (mod n)}$

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


Provide somebody something vs provide somebody with something


Area 51 displays badge with docs-beta next to Stack Overflow with missing link

Wrong Documentation beta score in Area 51


How to create fixed width table columns with text raggedright/centered/raggedleft?


Are there any precise rules for dueling?

What are the rules for magical duelling?


Removed post gives me -2 reputation. What happened?


How to select everything which doesn't match a regular expression?

Regular expression to match a line that doesn't contain a word


Systemd timer every minute between 09:15 - 17:15

Systemd Timer every minute on specific hours (using a range of values)


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


Center of Lie algebra and Lie algebra of center


PHP Regexp negative lookahead for file name


What is so special about the principal value branch of inverse trigonometric functions.

Agreed upon domain of inverse trig functions


Django 1.5 manage.py shell doesn't keep up with database - need to disable caching?


Instead of numbers, symbols are showing up in the references using biblatex

How do I get numbered entries in a beamer bibliography


Prove that the following ring is commutative

If $\forall x \in R, x^2-x \in Z(G)$, than $R$ is commutative


Finding out current index in EACH loop (Ruby)


If I buy Minecraft on PS4, will I get a Premium license for the PC version?


how do i make an app wait for a notification (txt, alert, ect)

Does Android support near real time push notification?


How to fix device null and nullpointer on the BluetoothSocket

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


Is it possible to look up a Stack Exchange user by their email address?


Why doesn't this integral yield the area of the sphere?

Areas versus volumes of revolution: why does the area require approximation by a cone?


How do I enter formulas on 'Mathematics' or 'Theoretical Computer Science'?


TikZ doesn't find all intersections between plot and a line


Ordering of virtual, abstract, override keywords

Is there a convention to the order of modifiers in C#?


Is there any number which is a perfect square of some number as well as factorial of some number.

Can $n!$ be a perfect square when $n$ is an integer greater than $1$?


Help identifying this animation about a locked-down city overtaken by androids

Cartoon movie where the main character had a robotic arm


macOS Terminal find most recent file in directory

How do I get files found by command-line 'find' ordered by modification date in OS X?


What are the benefits of hand built wheels over automated ones?

Why are hand-built wheels considered to be better than machine-built wheels?


How should I address my mediocre (at best) GPA in my Statement of Purpose [applying for MS in Engineering]?

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


List of lists changes reflected across sublists unexpectedly


Java Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException

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


R: making tick marks at specified intervals on x-axis when number are large

Change the spacing of tick marks on the axis of a plot?


Using jq to extract values and format in CSV


How would I parametrise a straight line?


How much electronics and other valuables can I bring duty-free when going to India?


accountsd want to use the "login" keychain

What is accountsd and why does it want to use the "login" keychain?


"There IS/ARE an even number of rules" - What is the correct verb and what is the subject?

Is the sentence "There is a large number of labourers who want to migrate to Japan for work." correct?


Which book is best book for metric space?


Return local character array from a function

Can a local variable's memory be accessed outside its scope?


What is the magnetic field inside hollow ball of magnets?


Prove that there exists a unique linear map that extends the map from a basis

Uniqueness of a linear map on a basis of a vector space


Does a ball, when thrown into the air, ever experience an instant of rest?

How long does an object experience motionlessness at the beginning of its descent?


How do I create a GIF screencast in Windows?


Discrepancy between Mobile and Desktop Answer Count

Mobile theme 'X Answers' header doesn't take into account deleted answers


undefined reference to \ `__gxx_personality_seh0' and collect2.exe: error: ld returned 1 exit status

Undefined Symbol ___gxx_personality_v0 on link


If I am young, is it preferrable to contribute after-tax to my 401k?

Recent graduate with new job: Choose Roth 401(k), or traditional 401(k)?


Why can I not return a List if asked for a List?

In C#, why can't a List object be stored in a List variable


Send notifications to iPad application through Mac application

Sending notifications from Mac to iPhone/ iPad/ iPod touch


How to install LAMP server in Ubuntu 16.04 and add www document root to user's home?

What's the easiest way to set up a LAMP stack?


How is something level trigger vs edge triggered?

What does edge triggered and level triggered mean?


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


Can we construct a system in which two distinct paths give the same actions? If so, how does the system evolve?

When/why does the principle of least action plus boundary conditions not uniquely specify a path?


How to assign the volume key for clicking pic in Samsung Galaxy Tab 3

Camera app that can use hardware buttons for making photo


If $\big\{n(k);k\in \mathbb{N}\big\}$ be set of all natural numbers none of whose digits is $6$, does $\frac1{n(1)}+\frac1{n(2)}+\ldots$ converge?

Sum of reciprocals of numbers with certain terms omitted


Why not just hold a stock position during trading and wait for profit?

Buying shares when the price goes down 2% and selling shares when it goes up 2%


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


Solving equations with $x^x$ on any given side

Is there any "superlogarithm" or something to solve $x^x$?


How to Prove the Chain Rule for Limits Using a $\varepsilon$-$\delta$ Argument?

How to prove this limit composition theorem?


What's the limit of the sequence $\lim\limits_{n \to\infty} \frac{n!}{n^n}$?


I can't install tux-paint , tux-math , tux-typing ,k geography. please tall me how to install this app in ubuntu software?

How do I install applications in Ubuntu?


Solving Inequalities with Gamma Function


What is Ubuntu's status on the Meltdown and Spectre vulnerabilities?


How to print barcodes from a website based on a template?


Sometimes PowerShell stops sending output until I press enter. Why?


Ubuntu 18.10 how to rename current terminal Tab title

How do you set the title of the active gnome-terminal from the command line?


what happened to the shuffle option in iTunes

How to shuffle all songs in iOS 8.4 music app


At what temperature will the hydrogen molecules escape from earth's surface?

Why doesn't hydrogen gas exist in Earth's atmosphere?


Check if an element is visible in javascript

How can I tell if a DOM element is visible in the current viewport?


Sentences ending with something that already contains a period/full-stop

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


How to interleave the lines of two or more files?


Can I include a more permissive license for my code contributions in my profile?

Can I opt to make my posts CC0 - public domain?


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


Is it rude to remind an editor about a manuscript submission still waiting for an invitee after 2 months?

Is it okay to inquire about the status of a paper when the online submission system shows no update three months after submission?


What folder contains the Wallpapers for 14.04

Where are the Unity desktop wallpapers located?


How do I reset a lost administrative password?


The only endomorphism of $\mathbb{R}$ is identity

Is an automorphism of the field of real numbers the identity map?


How to download videos from MathWorks website?

How can I download a Flash video from a website?


How can I supress zero values in a LibreOffice line line chart?

How do I create a line graph which ignores zero values?


Remove password from 2007 word document while actual password doesn't work

Recovering a password for a Word 2007 document


How to fix 'android.os.NetworkOnMainThreadException'?


Formatting a Windows 8 drive to install Windows 7

How do I uninstall Windows 8 and install Windows 7?


Embedding a video into HTML5 (audio plays but screen shows black)

Html Video player plays sound but not video


How to define a bijection between $(0,1)$ and $(0,1]$?


How to permanently set environmental variables


Installing Kotlin securely, with package signatures, auto-update etc


How to remove headers and footers for pages between chapters?


How to ask about ordinal place of an offspring?

How should I phrase a question that must be answered with an ordinal number (e.g., the third prime)?


Find the the point which is the intersection of two segments

How do you detect where two line segments intersect?


Year 2038 solution for embedded Linux (32 bit)?


Is there an "exists" function for jQuery?


How to print data from one table, if it does not exist in another table (php mysql)

Find records from one table which don't exist in another


JavaScript math, round to two decimal places

How to round to at most 2 decimal places, if necessary?


Derivation of equation of hyperbola - Where does the b²=c²-a² come from?

A geometric reason why the square of the focal length of a hyperbola is equal to the sum of the squares of the axes?


Color Management: Linear ACES to After Effects

Using Blender with wider gamut than 709 primaries (like ACES)


Is there an easy script which will display script 1 to US/ Canadian visitors and script 2 to the rest

What's the best solution to check a users country?


How to end do while loop with user input with if statement


What does a type followed by _t (underscore-t) represent?


Error while trying to download using wget

Proxy tunneling failed: Proxy Authentication RequiredUnable to establish SSL connection


Why do Calabi-Yau manifolds crop up in string theory, and what their most useful and suggestive form?

Why (in relatively non-technical terms) are Calabi-Yau manifolds favored for compactified dimensions in string theory?


Can steam create an overview of all my achievements?


Cannot answer protected questions with 97 reputation

What is a “protected” or "highly active" question?


After logging off, user is able to see the workbench page by pressing back button of the browser

After logging off, a user is able to see the pages by pressing back button of the browser