convert historic local time to UTC taking into account of daylight saving

How can I get the correct offset between UTC and local times for a date that is before or after DST?


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


Most efficient way to concatenate strings in JavaScript?


successively calling temporary object's methods


What is the lexical class of the word 'worth' when used in a sentence like "Is this apple worth $3?"


Can I use a valid visa in a cancelled passport?

Tourist visa with cancelled old passport and have renewed passport in hand


Caused by: java.lang.NullPointerException: SharedPreference error

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


Does deferring admissions to PhD affect future (post-PhD) career path?

What is the perception of students who take a gap year between their graduation and starting graduate school?


Prove that $f$ is continuous on $X$ iff $int(f(A)) \subset f(intA)$.

Continuity of a Function in Terms of Closure and Interior


prove that if $ h = |f_1|^2 \cdots + |f_n|^2$ is constant then $f_i$ is constant

If $f,g$ are analytic in the unit disk, and $|f|^2+|g|^2=1$, then $f,g$ constant.


UpdateCursor if loop references next row in field

Auto incrementing field based on groups within feature class?


List of key value lists to dictionary of lists


Integrating Factor of $(axy^2+by)dx+(bx^2y+ax)dy=0$.

Exact Differential Equations $(axy^2+by)dx+(bx^2y+ax)dy=0$.


Why Veritaserum wasn't used to detect all true death eaters?


My app crash when loading other xml layout


I can't run the black square program in OpenGL


Is Abbott's Proof of the Uncountabilty of Real Numbers too strong?

Why does Cantor's diagonal argument not work for rational numbers?


Ubuntu 20 wifi adapter not found wifi not working

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


How can I read the client's machine/computer name from the browser?


"watching the television" or "watching television"?


How to leave identical ammount of space between each CTRL+R Cut? AND why can I only do 1 cut?

why does loop-cut-and-slide ignore some faces but not others?


QGIS Azimuthal Orthographic Projection with Raster

How do I project a Azimuthal Equidistant global map into a circle in QGIS?


How to copy all conversation from iMessages to Mac without using Apple ID? Any app to do that?

How can I export SMS text messages from my iPhone?


How to use dot as splitter in currency format with Russian locale

Use specific currency symbol in Google Spreadsheets


Splitting a list into sublists with different sizes

Partitioning with varying partition size


Being the first person answering to a question


How to prove that the set of all not-empty and finite subsets of $\mathbb{N}$ is countable?

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


Error: Cannot convert the value of '{!pitem.Stock}' to the expected type

Error: Read only property 'StoreFrontController.productDisplay.quantity'


When you click the text Copy to clipboard textbox's value

How do I copy to the clipboard in JavaScript?


How do I backup data (SMS/contacts) from a device with a broken screen?


How can the symmetric group $S_3$ be represented as $\{1, x, x^2, y, xy, x^2y\}$


Is it possible to upgrade the graphics card in modern laptops?


PHP and Python integration : Calling python scripts from PHP page and respond back to it

Passing value from PHP script to Python script


Prove that $\mathbb{Q}(\sqrt[3]{p}, \sqrt{q}) = \mathbb{Q}(\sqrt[3]{p}\cdot\sqrt{q})$

$\mathbb{Q}(\sqrt{p},\sqrt[3]{q})= \mathbb{Q}(\sqrt{p}\cdot \sqrt[3]{q})$ ??


Disk errors during boot, failed command: READ FPDMA QUEUED


How to create a subfolder based on current date?

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


Every finite group has a a sequence of nested subgroups where adjacent elements are normal

Every finite group has a composition series


Simple Lie algebra representations and tensor powers of fundamental representations

When can you build up all representations from the fundamental and antifundamental ones?


What exactly does "Kofia" hat description mean?


How to set up value for serial type in PostgreSQL?

How to reset postgres' primary key sequence when it falls out of sync?


Travel from Paris Gare Montparnasse to Gare du Nord

Can I travel from Gare du Nord to Gare Montparnasse? (Paris)


Set Image Capture to launch when I connect my mobile

Image capture opens after iPhone is connected


Unable to change volume in command prompt

Using cd command in Windows command line, can't navigate to D:\


Balancing long table inside multicol in LaTeX


New mobile chat doesn't follow the keyboard height


Ideas to create a Best Move in a match 3 game


How to force the browser to reload cached CSS and JavaScript files


No stamp on non-EU passport while travelling from Belfast to Dublin

What do non-EU/Schengen citizens need to do when travelling within the Common Travel Area (CTA)?


What to do when you discover a mistake in the archived copy of your PhD thesis?


Do eyeballs exhibit chromatic aberration?


How can I calculate the combinations of having exactly k distinct letters in a word of length n?

Closed-form expression for the number of $k$-permutations of length $n$. Duplicates allowed!


what is the padding's role on the css and html


Is there a method to find how to combine resistors in order to get a specific resistance?

Does anyone remember this article about the Euclidean Algorithm?


NLCD WMS Server Returns Color Index Instead of Classification Code


Compute $\det(A + tI)$ (Exercise 4.3.24 in Linear algebra by Friedberg)

Characteristic polynomial of companion matrix


Creating a 'brick wall' style for polygons


Temporarily suspend stepwise beamer presentation to show full slide of code listing or graphic

Insert another slide between a pause in beamer


Change Default directory of Documents and Settings?


Generate SSH key on computer A and use it to SSH from computer B to computer C

copy ssh private keys to another computer


Why don't I get the option of upgrading to 20.04

Is the "Final Release" a "Development Release"?


Wondering what the expression " I am about to"


Failed to download repository information Ubuntu 13.10

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


Why use the word "copy" in "do you copy that"?


/usr/bin/env as a shebang - and its security implication

What is the difference if I start bash with "/bin/bash" or "/usr/bin/env bash"?


How can i create points per 10 and 100 meters for several lines with ArcPy?

Get a point on a polyline from end points given distance along poly line


How to prove if this $\sum_{l=0}^{n}\binom{n}{l}=2^{n}$ is valid for all $n\in \mathbb{N}$?

Proving by induction that $ \sum_{k=0}^n{n \choose k} = 2^n$


"reshaping" a list to a list of sub-lists

How do you split a list into evenly sized chunks?


How to put Mathematica Notebooks and packages on Github?


Do faculty at Harvard, Princeton, Stanford, etc. only want to hire people from those universities?

Do universities hire graduates from lesser universities


A Cyclic Extension of degree 4 does not contain $i$

Galois Basic Question (Cyclic Order 4 Extension of Q cannot contain i)


How to Sync iPhone contacts to a new Google account?

How do I move my iPhone contacts to Gmail?


Prove the inverse of this differentiable function is differentiable?

Alternative proof for differentiability of inverse function?


virtualbox not working on ubuntu 12.04 64-bit?

Getting error message when trying to start a virtual machine


Pass ORDER BY columns as Parameters in SQL

Dynamic Sorting within SQL Stored Procedures


If a spell is countered, do on cast effects still get triggered?

When do "when you cast this spell" effects resolve?


Eigenvalue changes in sign when performed row operations.

elementary row operation change the eigenvalue of a matrix


PHP Multiple Update function not updating and gets the 1st row blank


Why arsin function has range $[-\pi/2,\pi/2]$

Why is the range of inverse trigonometric functions defined in this way?


Functions $g(x)/h(x),h(x)/f(x)$ are constant

Functions $f(x)/g(x), g(x)/h(x),h(x)/f(x)$ are constant


Find the volume bounded by the $xy$ plane, cylinder $x^2 + y^2 = 1$ and sphere $x^2 + y^2 +z^2 = 4$

Find the volume of the region inside both the sphere $x^2+y^2+z^2=4$ and the cylinder $x^2+y^2=1$


Formulation for multiple regression, but with the bias term taken out and treated separately

When is it ok to remove the intercept in a linear regression model?


14.04 LTS intermittently fails to resume from hibernation

pm-hibernate freezes and/or fails to resume on Dell XPS 13, 14.04, 3.19 kernel


Only one global minimum for univariate linear regression squared error cost function?


How to personalize item display in a h:selectOneRadio component?

renders table element, how to avoid this?


the comparative ... , the comparative ... and predication

"The more, the merrier!" -- Is this a sentence? If not... what?


How would i execute this command in java?

How do i run a UNIX terminal from Java and send commands to it?


Do airlines raise the ticket price as flights fill up

Flight tickets: buy two weeks before even during holiday seasons?


Looking for a story title- about dimension traveling spaceship that shows alternate versions of the pilot

Short story about interstellar travel gone wrong


Is this section layout on Area51 intentional?

Area 51 layout breaks when zoomed to 90%


Using SFINAE, how to avoid 'has no member named ...'

Templated check for the existence of a class member function?


General Tips for Correct Linking in C/C++

Why can templates only be implemented in the header file?


Including boost::multi_array in a class with not specified number of dimensions

How do I best handle dynamic multi-dimensional arrays in C/C++?


Comma usage (ex. His sister, Anne, was not feeling well.)


Interface vs Abstract Class (general OO)


VBA macro to remove everything before and after  tag

Strip out all HTML Tags from an excel file


Let A be a countable set, and let $f : A \to B$ be a function. Prove that $f(A)$ is at most countable.

How to prove that if $D$ is countable, then $f(D)$ is either finite or countable?


How to prove that all eigenstate $|0\rangle,|1 \rangle,...| n\rangle $ are non-degenerate?

Proof that the One-Dimensional Simple Harmonic Oscillator is Non-Degenerate?


Pokemon keep running away and Pokestops don't drop anything when spinning. What is going on?


find command with regex quantifier e.g. {1,2}


What is the difference between properties and fields?

What is the difference between a field and a property?


How do I remove a previously installed app/software on Ubuntu 16.04

What's the difference between package managers?


Why does no minimal surface in $\mathbb{R}^3$ exist that is diffeomorphic to the $2$-sphere?


Force SSL/https using .htaccess and mod_rewrite


How to know the size of a variable in MATLAB


Making Photos use more memory when it is running in the background for People Tagging tasks

People will finish updating when Photos is in the background


Saving file to .shp with have many attribute

Could not make temporary scratch layer permanent


$\langle x_n\rangle $ be a sequence such that $x_{(n+2)}=\frac{(x_{n+1}+ x_{n})}{2} $for all $n \in \mathbb{N}$, prove that $x_n$ is convergent

If $\alpha\in (0,1]$ and $x_n=\alpha x_{n-1}+(1-\alpha)x_{n-2}$, show that the sequence $\{x_n\}$ is convergent.


Should you use "a" or "an" with foreign words that start with "hi"?


Clipping polygon precisely to raster (extent) using GDAL?


If $(a_n)\subset[0,\infty)$ is non-increasing and $\sum a_n<\infty$, then $\lim{n a_n} = 0$


Return of getProperty() can't be used in if statement whereas same value as String variable works


Attempt to invoke virtual method 'long android.database.sqlite.SQLiteDatabase.insert

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


C# - Probably ploblem with CultureInfo.InvariantCulture

How can I change the CurrentCulture of the entire process (not just current thread) in .Net?


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


Just found an older account of mine, can they be merged?

How can one link / merge / combine / associate two accounts / users? (Anonymous / unregistered / cookie, or Google / Facebook / registered)


E: Type 'sudo' is not known on line 1 in source list /etc/apt/sources.list.d/yandex.list

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


How do I convert a binary string to hex using C?


Using ErrorBars with ListLogPlot in Mathematica 11


If $2xy$ divides $x^2+y^2-x$, prove that $x$ is a perfect square

Prove that $2xy\mid x^2+y^2-x$ implies $x$ is a perfect square.


Why do I get a notification for an edit I did?


How to resize a partition on a server without a display?

How do I resize partitions using command line without using a GUI on a server?


If I use NotebookEvaluate, then I can't abort a While loop

Why doesn't 'Abort evaluation' properly work when NotebookEvaluate is executed?


Do I need Schengen Visa for transit in Dusseldorf, flying in from CGK-Abu Dhabi-Dus-JFK?

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


How to compute $\int_0^{\infty} \ln (1 + e^{-x})\, dx$ and $\int_0^{\infty} \ln (1 - e^{-x})\, dx$?

Evaluating the integral, $\int_{0}^{\infty} \ln\left(1 - e^{-x}\right) \,\mathrm dx $


package does not work and jvm does not recognise classes


Uncaught ReferenceError: myFunction is not defined

Why isn't my JavaScript working in JSFiddle?


How will the Twin Paradox become, for Time Dilation, if no acceleration was ever involved?


Pokemon keep running away and Pokestops don't drop anything when spinning. What is going on?

Why can't I catch Pokemon in Pokemon Go anymore?


How can I find the maximal interval of existance for following equation?


Refering to the same footnote - \footnotemark + \footnotemark[\value{footnote}] + \footnotetext (without \ref)

Saving and re-using value of a footnote counter twice - how?


How can all integral values on an elliptic curve be found?

How to compute rational or integer points on elliptic curves


Why do I get unresolved references even though dependencies are linked correctly

Why does the order in which libraries are linked sometimes cause errors in GCC?


Is a rational-valued continuous function $f\colon[0,1]\to\mathbb{R}$ constant?


When Frankensteining ciphers together, why does order matter?

Construct IND-CPA secure encryption scheme by combining two given schemes


Why do Template Specializations need declspec?

Why can templates only be implemented in the header file?


Are any of the eligible bachelorettes Bards?

How can I determine if an NPC is available for marriage?


Is full wave rectifier better than half wave one?


Is it possible to apply graduate program in a different major?

Graduate school admission with a degree in a different field


Oracle SQL: Get top 3 results per "category"

Get top results for each group (in Oracle)


Why does http://example.com equal http://example.com/?

Is trailing slash automagically added on click of home page URL in browser?


Header not working - code works before and after header

How to fix "Headers already sent" error in PHP


SQLiteDatabase on a null object reference

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


How can the following table be created in LaTeX

Creating a table in LaTex with the following style


Transferring Vector Resultset to another database


open a new terminal, let it stay, and switch back to original terminal, run command


who to make a debounce function when I stop writing it send request to get data


can not hibernate Ubuntu 20.04 (no disk /sys/power/state)

How to enable hibernate option in Ubuntu 20.04?


How to treat exceptions in constructor best?


javascript calculations are different from calculator calculations


Will I ever get a Facebook Looking back video again?


Redirect the page according to the user role after validating user


What's the intuition behind difference of $\neg(S\land E)$ and $\neg S \land \neg E$?


Spring 3 MVC ConstraintValidator Validation: isValid method not getting invoked


Cannot run regedit to fix registry problems

How do you remove a default program association for file types in Windows 7?


Convert string to an array of ASCII values

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


How do I statistically compare the readings from two different sensors?

What ways are there to show two analytical methods are equivalent?


How quick is the transition from one concentration spell to another?

Can a concentration spell be cast without actually concentrating on it for an "instant" effect?


Let K be a field, and $I=(XY,(X-Y)Z)⊆K[X,Y,Z]$. Prove that $√I=(XY,XZ,YZ)$.


Why is angular displacement not a vector?

If angular velocity & angular acceleration are vectors, why not angular displacement?


When a car's non-driving wheels are turned, what is the frictional force vector that actually causes the vehicle to turn in that direction?


There was a problem reading this document (131)

How to overcome Acrobat Reader error 131 with a pdfLaTeX doc?


Explicit template specialization for constructor (g++)

Why can templates only be implemented in the header file?


What does this construct mean "__builtin_expect(!!(x), 1)"


Present Perfect vs. Present Perfect Progressive

Is there any difference between Present Perfect and Present Perfect Continuous?


Is there any benefit to Monte Carlo simulation when probability can be directly calculated?

What are the advantages of a simulation over an exact binomial calculation?


Why do I get a fatal error when clicking on the permissions tab in admin/people?

White screen of death: Fatal error: Allowed memory size of X bytes exhausted


How to learn physics effectively and efficiently


How to show an error if the form was NOT submitted on MY OWN website?

CSRF (Cross-site request forgery) attack example and prevention in PHP


Creating compressed GeoTIFF with QGIS Clipper tool?


android - launch different activities depending on edittext values


Proof of $k {n\choose k} = n {n-1 \choose k-1}$ using direct proof


How to dampen tripod vibration on bouncy surface?


Tag excerpts from 'obligatory' tags on per-site metas do not appear in the 'all tags' page?

The initial default version of the tag wiki excerpt is not shown on the tags page


Upgrading A Verizon Galaxy Note 2 to Marshmallow


linux + find + delete files on remote machines except particular files


"I will start my course ..." Or "I start my course ..."


Assigning multiple indices at once from one list

JavaScript Object Literals & Array Literals


On constant-coefficient linear homogenous ODE

The number of solutions to an $n^{th}$ order differential equation.


What is this variable declaration with underscore, inline interface and assignment?

What does an underscore and interface name after keyword var mean?


How to set a colspan in an android gridview cell

Android - GridView : Specify Column Span


Google address autocomplete in JSF .xhtml page - any examples?

The reference to entity "foo" must end with the ';' delimiter


how can I convert a negative log likelihood to likelihood?

What is the difference between "likelihood" and "probability"?


T-SQL query to join tables and combine rows into comma separated list

Simulating group_concat MySQL function in Microsoft SQL Server 2005?


What does installing games through discs do to my xbox 360

Should I install Xbox 360 games to my hard drive?


Command in cron has syntax error; same command entered on command line does not

How can I execute `date` inside of a cron tab job?


What is the best way to position a img and a div side by side and center them?

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


Swap places in business class with friend

Are you allowed to swap seats with a friend in a different booking class?


Where is the focal point of a camera lens?

How does photography (as opposed to physics) define "focal-plane"?


Privileges at/after 1K not appearing in Achievements dialog?

Did not get notification about new privilege


Is it a good practice to use mb_convert_encoding function


How does Temperature influences the rate of protein turnover?

How does temperature influence the rate of protein degradation?


Can the team provide some explanation for declined feature requests?


Qt Linker Error: "undefined reference to vtable"

Undefined reference to vtable. Trying to compile a Qt project


Do I need schengen visa if I have 3 hour layover at Zurich and then connecting flight to Toronto?

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


After Effect - Triangle Wave (JavaScript)

Is there a one-line function that generates a triangle wave?


Log4j RegexFilter, How to configure PatternFlags?

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


Convert a character digit to the corresponding integer in C


Uninstall Ubuntu and bring back Windows 7

How to remove Ubuntu and put Windows back on?


Environment that disables italics in math mode


Why does the moon appear white/grayish and the sun yellow?

Why is moonlight less colourful than yellow light?


Wagner's trick to monitor FindRoot no longer works in Mathematica version 8


Unity does not start after installing the fglrx drivers


Problem with double value with Expansion in java , I was trying to add two double values but not giving accuracy


How can I detect just AUTO_INCREMENTed value with PHP?

How do I get the last inserted ID of a MySQL table in PHP?


Bash "IF STATMENT with Decimal condition check"

Floating point comparison with variable in bash


Haar Measure on Semidirect Product of Unimodular Groups


Write dictionary values in an excel file


Does a photon in vacuum have a rest frame?


Stream does not support reading when calling SendEmailAsync

How to send an email with attachments using SmtpClient.SendAsync?


In Excel, what formula to use to group numbers and color code them by consecutive numbers?

Alternate grid background color in excel when a value of a single column changes?


Why is event.returnValue is deprecated? What's the point of this?

event.returnValue is deprecated. Please use the standard event.preventDefault() instead


Is there a general form for $a_n=\sqrt{2+a_{n-1}}$?

Proof of an equality involving cosine $\sqrt{2 + \sqrt{2 + \cdots + \sqrt{2 + \sqrt{2}}}}\ =\ 2\cos (\pi/2^{n+1})$


Sizeof a function that returns void in C

What does 'sizeof (function name)' return?


How to find $ \lim_{x\rightarrow 0} \frac{(x + 1)^{\frac{1}{x}} - e}{x} $

How to solve this limit: $\lim\limits_{x\to0}\frac{(1+x)^{1/x}-e}x$?


Dependency problems with apache2, mysql-common, libmysqlclient20:amd64 and mysql-client-5.7


My CPU and Dual GPU and Utilization monitoring tool


How to upgrade or downgrade a kernel in Ubuntu 17.04?

How to update kernel to the latest mainline version without any Distro-upgrade?


Array of pointers vs Multidimensional Array

Difference between [square brackets] and *asterisk


tmux: Cannot SSH from inside tmux, even though I have agent-forwarding (ssh -A) on

How can I get ssh-agent working over ssh and in tmux (on OS X)?


2 Calling pure virtual function in constructor gives an error?


Why class Node in LinkedList defined as static but not normal class

Java inner class and static nested class


Answer a phone call with a custom record

How to play sound on phone call with Android?


How can I copy a file from another directory to the current one?


Where Is The Problem In Proving $1=2$ Through Continued Fractions


What's This Design called and how to pull that off?

Blending colors in photoshop and illustrator


How to use a variable inside a RegEx pattern?

How do you use a variable in a regular expression?


How can fix "Unable to lock the administration directory (/var/lib/dpkg/), are you root?"?


I want to take output of first command as a input of second command in shell

Execute a command once per line of piped input?


Redirecting hotspot's traffic through the TOR

How can I block all traffic *except* Tor?


How does RAID controller know which bits are the right one?

How does RAID 1 determine whether a disk is corrupted?


Virtual method only works for base class pointers


Do I need a working visa to stay in the US but work for a company in Europe?

Can I travel to the USA while working remotely for my non-US employer?


Can we call a Rest API method and retrieve more than 50,000 records in a Salesforce Environment?

Do we need to provide LIMIT in soql query while using REST API?


Infimum of the sum of absolute differences from $x$ occurs when $x$ is the median

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


Logistic regression - linearity and non linearity

Why is logistic regression a linear classifier?


Solve a system of equations with Euclid's Algorithm

Solving a system of equations using Euclid's Algorithm


How can i put IF ELSE CONDITION in Oracle query?

Fetch the row which has the Max value for a column


How does a Windows 10 'digital license' activate the OS?


14.04 - Keyboard does not work in login screen after sleep

Keyboard and mouse unresponsive after suspend


Sqlite does not return correct primarykey in php

What's the best way to get the last inserted id using sqlite from Java?


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


how can I pass a reference to a generic method?

How do I use reflection to call a generic method?


BSD sed: Replace only the Nth occurrence of a pattern

How to replace only the Nth occurrence of a pattern in a file?


circumstances where software change leads to device damage

Can some software physically damage hardware?


What is the meaning of p values and t values in statistical tests?


NullPointerException when using an object to call a method that has Selenium WebDriver code

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


Allowing Underprivileged Users to Install Fonts on Windows 7

Using custom fonts without administrator rights?


How to export font information for a specific PSD file for use in writing CSS


How can I detect a create, update, delete query is successful in Codeigniter


hindi text displayed correctly on webpage but inserted wrongly in mysql databse


Properties of the diff of a sorted uniformly generated set

Spacings between continuous uniform random variables


How do I add an image in the upper, left-hand corner using TikZ and graphicx


pgftables: nodes near coords align depending on value?

How to mark/label nth data point from file in pgfplots?


Make [webstart] a synonym of [java-web-start]

Tag merge request: [webstart] and [java-web-start]


Evaluation order of expressions with read-line in Clojure

Clojure - Side Effects Happening Out Of Order


How do you make basic substitutions in Mathematica?

Replacing composite variables by a single variable


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


Prove that the set of positive rational values that are less than $ \sqrt{2}$ has no maximum value

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


Setting a navigation view listener failes

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


Dual to align closer to align* such that only one equation is numbered and the equation can be splitted in different pages

Show equation number only once in align environment


Need linebreaks in some columns of a wide table


What is the algorithm for float placement?

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


How to solve this limit: $\lim_{x\to\infty}\sqrt{x+\sqrt{x}}-\sqrt{x-1}$

Find the value of : $\lim_{x\to\infty} \sqrt{x+\sqrt{x}}-\sqrt{x}$


Why does [1].append(2) evaluate to None instead of [1,2]?


If $R:S^{1}\rightarrow S^{1}$ is a irrational rotation, $\{R^{n}([x])\}$ is dense in $S^{1}$ for all points.

Algebraic proof that a set generated by irrational rotations is dense in $S^1$.


Capital ẞ in LaTeX/XeTeX/lualatex/whatever


exit code of the command **before** last?

Get exit status of process that's piped to another


android error: Can't create handler inside thread that has not called Looper.prepare()

Can't create handler inside thread that has not called Looper.prepare() inside AsyncTask for ProgressDialog


Why pay for specialist studio photography lighting aka strobes when you can use continuous light sources which are more powerful and cheaper?

What should I consider when choosing continuous lighting vs. strobes for studio photography?


matrix product of two positive definite matrices

Is the product of symmetric positive semidefinite matrices positive definite?


Old sci-fi short story about alien "elixir" and lone astronaut losing sanity?

Short story about an astronaut that has to harvest/collect the body fluids of an alien for a panacea


How to Solve $\lim_{x\to \infty}\sqrt{x^2 + ax} - \sqrt{x^2 + bx}$


How do you plot the same function with different options over different intervals?


Prove that a perfect square is either a multiple of $4$ or of the form $4q+1$.


Display month as numbers instead of words


How can I install Windows software or games?


Can a Skeleton created by Animate Dead use different equipment?

Can animated undead wear armor and use weapons?


Searching for a short story from the point of view of alien alone at an outpost

Short story describing an alien invasion where humans are the invaders


What are the shortcuts for vert, edge and face selection in edit mode?


How do I compute/estimate the variance of sequential data?

Online estimation of variance with limited memory


What is the Topology of Cantor set as the subset of real line with standard euclidean topology?


How can I get the value of a property of all the classes that implements an interface?

How to create a new object instance from a Type


Is the 64-Bit version of Ubuntu only compatible with AMD CPUs?


Bank account got shut down for fraud from my sugar daddy?

Sugar daddy wants my online banking login info to make deposits — is it a scam?


Why is `Hello`, `Thanks` etc. are not allowed?

Should 'Hi', 'thanks', taglines, and salutations be removed from posts?


How to fix external hard disk READ ONLY?


What is the sentence pattern of "I think that she is intelligent"


Should both spouses apply for Global Entry or TSA Precheck, or can one be a companion to the other?

Can others in my party go through TSA PreCheck?


How to prove that all primes of the form $4k+1$ can be represented by the sum of two squares in only one way regardless of the order?

Confusion in proof that primes $p = 4k + 1$ are uniquely the sums of two squares


Connected To Wifi Network; No Internet Acess (iPad)

Connected to wifi successfully, but no internet connection


Different results after updating the code (glmnet function)

Different seed gives different LASSO output


Android: The app is closed when an Activity is called. Intent, context, string

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


Need help accessing data outside of a loop[undefined]


To what extent can speed of light be reduced?

Is there a theoretical maximum for refractive index?


Show there are infinitely many primes that are equivalent to 1 mod 8.


How to make the Menu key on my keyboard work in Mathematica

Opening a context menu (with the Menu key)


When would I use package-private in Java?

Pros and cons of package private classes in Java?


Remove one (or more) aes from legend in ggplot

Remove 'a' from legend when using aesthetics and geom_text


Why does this List Comprehension work but not the for loop for creating a grid copy?

List of lists changes reflected across sublists unexpectedly


Proof by calculation binomial coefficient

Prove inequality of binomial theorem $\frac1{n^i}\binom{n}i \leq\frac1{m^i}\binom{m}i $.


Does a "tenfold increase" mean multiplying something by 10 or by 11?

Why is "a 100% increase" the same amount as "a two-fold increase"?


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


Removing Java completely from Ubuntu 14.04 LTS


Do I need an airport transit visa for Amsterdam

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


How do I do a simple pivot in Sql Server

Simple SQLServer PIVOT/Transposed query, how to write?


How to have No fancy header in first page?

How to put fancy header on all pages except the first page?


Isomorphism between the ring $R$ and the quotient ring $R/\langle a\rangle$

Quotient ring being isomorphic to the initial ring


Prove that $\sqrt{2} +\sqrt{n}$ is irrational

Can $\sqrt{n} + \sqrt{m}$ be rational if neither $n,m$ are perfect squares?


what is exactly the $\sigma -$algebra $\mathcal F_T=\{A\in \mathcal F\mid A\cap \{T\leq t\}\in \mathcal F_t\}$?

Verifying the interpretation of stopping times and stopping time $\sigma$-algebras


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


Is this a bed bug??? Small insect with tail thing found in bed

Insect identification - Is this a bedbug?


Adjusting condition in field calculator in QGIS


Evans PDE(2nd edition) Problem 5.11: If $Du=0$ a.e. , does $u=c$ a.e.?

Evans PDE Chapter 5 Problem 11: Does $Du=0$ a.e. implie $u=c$ a.e.?


How to extract fractional digits of double/BigDecimal

How do I get whole and fractional parts from double in JSP/Java?


What is the mysterious stranger doing in my vault?


Why models in nested scopes won't be updated when changing the value?

Difficulty with ng-model, ng-repeat, and inputs


How do i find the product key of Windows 10 (OEM Sticker Erased)

Where to find a Win 10 product key after upgrade?


How do you click and drag lower right corner of a cell (autofill) in excel using the keyboard?

Excel Auto-Fill a Series Without Mouse (Keyboard Only)


How can an animated object kept on the surface of an ocean?


OrderByDescending not working properly in Linq

Linq OrderBy does not sort a List. How do I sort the list?


How many Wizards/ Witches got into relationships with Muggles?

Of all the half-Muggles in JKR work, what is the percentage of those with muggle mother vs father?


Strange floating-point behaviour in a Java program


How to find the length of a character array in c which contains multiple characters of asci 0 value

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


How to check if my code is subjecte to sql injection


"Unfortunately, app has stopped" while open on emulator

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


Does Great Weapon Fighting allow the SRD version of a Vicious Weapon's 2d6 bonus to be rerolled?

Which damage dice exactly does the Great Weapon Fighting fighting style allow you to reroll?


How do I unlock all the other ships in the hangar?


Is it possible for a particle to orbit a singularity inside the event horizon

Do particles in a black hole stay in constant orbit?


Get the contents of a particular tab (Firefox add-on development)


Upper triangular matrix with big zero in lower triangular?


Why can't we make a perpetual motion machine by using a magnet to pull up a piece of metal, then letting it fall back down?

Why doesn't this magnetic perpetual motion machine work?


How to find a D&D group when you are around 12


How to call a function saved as a variable javascript


"Only by playing fair, and also without fear, will you ever win."


How do servlets work? Instantiation, sessions, shared variables and multithreading


How did the lead character in predestination movie get born for the first time?


Why is bias term not included in Regularization (Regression/Classification)?

No regularisation term for bias unit in neural network


Solving $\sin x\cos3x+\cos x\sin3x=\frac{\sqrt{3}}{2}$ in the interval $[0, 2\pi]$. How to handle the interval?

Solving $\sin x\cos3x+\cos x\sin3x=\sqrt{3}/2$ in the interval $[0,2\pi]$


java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'User' available as request attribute with root cause

What causes "java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'command' available as request attribute"?


Do COBE, WMAP, or Planck data show time-variance of the CMB's anisotropies?

How fast is the Cosmic Microwave Background Radiation (CMBR) changing?


How do i keep a newly started program from taking focus?

Preventing applications from stealing focus


How to reinstall Ubuntu linux 12.04, after I reinstalled windows 7

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


While loop with scanner expression continuing despite false evaluation


How can I calculate Conditional Probability of the following case?

The Monty Hall Problem - where does our intuition fail us?


Testing for associativity using the multiplication table (Cayley Table) of an operation.

Is there an easy way to see associativity or non-associativity from an operation's table?


How do I keep enemies from clumping up into one area?


I am trying to reverse an int using java, for some reason when given 0001234 my program somehow reads this as 668 and returns 886

Why are integer literals with leading zeroes interpreted strangely?


Rotate CAShapeLayer around center of UIView


Dual Boot: Ubuntu installation not detecting existing windows operating system

"Install alongside" option missing. How do I install Ubuntu beside Windows using "Something Else"?


How do I derive geodesic equation using variational principle?

Geodesics equations via variational principle


How best to utilize two SSD disks on VPS webserver

What are the different widely used RAID levels and when should I consider them?


How can the community assist in welcoming LGBTQ users?


Undefined symbols for architecture x86_64 error in c++, header apparently isn't linked

Why can templates only be implemented in the header file?


How to check which hypervisor is used from my VM?

Easy way to determine the virtualization technology of a Linux machine?


Ubuntu 14.04.5/16.04 and newer on AMD graphics


Is It possible to make this MySql code non-injectable in any way?


Custom numeric format string to always display the sign


Using "will have" with the past participle

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


Logical AND and logical OR operator precedence


status code 4...check of file system failed

fsck error on boot: /dev/sda6: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY


My battery started draining very fast ,but only when I use Ubuntu 16.04

Tips to extend battery life for laptops and notebooks


Evaluating the complex integral $\int_{|z|=2}^{}\frac{1}{z^2+1}dz$


Negative ICC value. Wrong test or wrong interpretation?


Can I move around an enemy without provoking an attack of opportunity?

Can I circle around an opponent and avoid opportunity attacks?


How can I check index fragmentation in the quickest way possible?

How to query/monitor index fragmentation?


How can I install software or packages without Internet (offline)?


org.apache.jasper.JasperException for JSP Servlet


biblatex: How to remove the parentheses around the year in authoryear style?

How to (properly) remove the parentheses around the year in authoryear style? (v3)


Why is SVM sensitive to scaling of features?


Why was Hulk so intent on killing Natasha (Black Widow) while on the Helicarrier?

In the Avengers movie, why is Hulk's behaviour inconsistent?


E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root? (trying to update ubuntu)

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


Why was suggested edit rejected by Community?

Why does the Community user approve and reject edits?


How to install Google Services on a Garmin Fleet 790 Navigation Tablet?

How can I install the Google Apps Package (Play Store, ...) on my Android device?


WebPage loading on browser instead of Webview in Activity


What does Solve output with # and & mean


Can't install Python mysqlclient bindings

How to connect to MySQL db from python 3 on 16.04


5 Band resistors and correct orientation


Corrupted hard drive - how can I rescue my files?


GTA V Online Character Transfer PS3 to PS4


E/BitmapFactory: Unable to decode stream: java.lang.NullPointerException

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


How do I list a section in table of contents that appears before the table of contents?

Table of Contents incorrect page numbering


Minimal Sufficient Statistic for the distribution $U(-\theta, \theta)$

Sufficient statistics for Uniform $(-\theta,\theta)$


What do you call a person who is never content with anything that is given to him?

A single word for someone who is not pleased no matter how hard you try


help me identify this novel from my childhood


Confused with pre and post increment operator

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


Divergence of $\frac{ \hat {\bf r}}{r^2} \equiv \frac{{\bf r}}{r^3}$, what is the 'paradox'?


How can I sandbox Python in pure Python?


When can I use "while" instead of "when"?

Usage of “when” or “while” in this context


if statement always returning false on string comparison


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


Let S be an infinite set and A a finite subset. Prove that $|S| = |S -A|$.

Show that A has the same cardinality as $A\setminus\{x,y,z\}$


Extract values of substring of parameters from string

How can I get query string values in JavaScript?


Please add a system to allow file uploads attached to questions and answers


Making 3 points stick on a plane / flag with wind


MVC SPRING - org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException

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


How to add or subtract very large numbers without bigint in C#?


Remove Bluetooth icon on indicator applet when Ubuntu 18.04 start up

How can I deactivate Bluetooth on system startup?


How do I list all package names in a specific category using Terminal?

How can I get a list of all packages in a repository section from command line?


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


What happens when two cards both modify what I'm allowed to do?

Interaction between Leyline of Anticipation and Teferi, Time Raveler


How do I mix two bump nodes and fade from one to the other?


Do questions with bounties actually get more views and attention?


If $f \in \mathcal{L}^1(\mathbb{R})$ then $\lim_{h\rightarrow 0}\int_{-\infty}^\infty |f(x+h)-f(x)|dx\rightarrow 0$


Can I install any iOS version I wish by picking and choosing which firmware to restore?


page shifts when the height exceeds the browser size

How to prevent scrollbar from repositioning web page?


What is the correct way to indicate a singular/plural that ends in (ies)

Parenthetical pluralization of words ending in '-y'


Expected days to finish a box of cookies


Prove determinant of a matrix $=\prod_{j<i}(a_i-a_j)$


Can an invisible creature with the Mind Blank spell cast on it be seen by a creature with the True Seeing spell cast on it?

Do Nondetection and Invisibility protect you from True Seeing?


2000s(?) trans/post-humanist coming-of-age story with a wooden spaceship, augmented reality, and a "God Drive"

Story where radically different cultures live together and are defined by rulesets, some choose not to see each other, a house is used as a spaceship


Given matrix $A$, find the number of solutions of $X^2 = A$.

$A=\begin{pmatrix}0&0&1\\ 0&1&0\\ 1&0&0\end{pmatrix}$, $X^2=A$ has no solutions


Import variable from another .py without running the module

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


Render is all gray, tried multiple things

One Object won't Show up in Final Render even though it shows up in the Preview Render


Public key Issue - same key pair as existing one?


How should I handle sprite creation for customizable 2D characters?


What are people using currently for virus and malware checks?


What is a primitive, a macro, and how do they compare?


need information about my username and password

How do I reset a lost administrative password?


Where did the name "Stack Exchange" come from?


Trim supports for Kington SSD is in default or not?


What is the Linux equivalent to Windows' Program Files?


How to dynamically generate a list of classes with commas separating them?


If $x, y \in \mathbb{N^{*}}$, such that $\frac{x}{y}+\frac{y}{x} \in \mathbb{N}$, show that $x=y$.

Can sum of a rational number and its reciprocal be an integer?


$f_n$ converges uniformly on $[a,b]$ to some function $f$


Access apple's iOS ringtones and display them


ext4 partition size / free space discrepancies


Reduce spacing between items in LOF and LOT

Space between elements of figures and tables list


Two hard drives, Two Operating systems on single computer

Installing Ubuntu on one of two hard drives


Change directory to path of parent/calling script in bash

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


Practical Solution For Giant Spike Balls


How to set up the Fourier domain for a Fourier Transform?

What's the correct way to shift zero frequency to the center of a Fourier Transform?


less with "update file" like functionality


Am I or anyone else allowed to comment in a question of mine requesting an answer from a particular person?

Any way to send a personal message to another user?


Is it possible that Gravity is a Repulsion phenomenon instead of an attractive "force"?

Can we model gravitation as a repulsive force?


$\bar{.9}$ is distinct from 1 in $\mathbb{R}$ so why does $\bar{.9} = 1$

Where can you perform variable substitution in an equation?


How to tell Photoshop to treat layer as a Vector graphic?

Resize (enlarge) an image without resampling (in favor of quality loss)?


Average delay to get a badge after completing the requirements

How long does it take for badges to be awarded? How are they generated?


Why do some nicknames have no apparent relation with their original counterparts?


Constants of integration in integration by parts


Precedence of user and group owner in file permissions


Product of a quotient space and the unit interval

When is the product of two quotient maps a quotient map?


What's the difference between saying element1, element2 {display: inline block;} and element1 + element2 (display: inline block;)?

What does the "+" (plus sign) CSS selector mean?


Python: Find index of minimum item in list of floats

Getting the index of the returned max or min item using max()/min() on a list


Meaning of Choreographer messages in Logcat


How is depth perception linked with the separation between our eyes?


Why do you show Moderator's review count even when there is not flags to review?

Flag indicator present on Meta, but no flags visible


How do digital watches use so little power (and how do I do that?)

How is wristwatch with 10 years battery life possible?


Google Search Console: existing sitemap not found

Google Search Console: 404 errors on existing pages


std::function::target with template parameter pack gives "error: expected primary-expression"

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


Synaptic Clickpad not working while typing on windows 10

How to enable Synaptics Touchpad While Typing (without disabling palmcheck)?


529 College Savings Plans - How flexible is it, and can I withdraw (and pay taxes) if unused?


Not able to read all bytes of image in C

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


Replacing polygon within composite relationship without deleting tabular record?

Using Replace Geometry to replace selected feature with circle in ArcGIS Desktop?


Calculation of the nth Fibonacci number using HashTableMap

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


Why does the reflected light have a specific direction?

Why is angle of incidence equal to angle of reflection?


DataExtension - reorder the fields on existing Data Extension


Biblatex: How to make maxcitenames to work with Custom styles?

BibLateX/biber, maxbibnames with style=apa?


How do I perform an LU Decomposition without pivoting?

Is it possible to prevent LUDecomposition from pivoting?


normal approximation to the binomial distribution: why np>5?


7 sphere, is there any physical interpretation of exotic spheres?


Algebric proof for the identity $n(n-1)2^{n-2}=\sum_{k=1}^n {k(k-1) {n \choose k}}$


How do I install a backdoor to logon to Ubuntu?

How do I reset a lost administrative password?


I lost control of my account before registering, can it be recovered?


What is bias in linear regression using NN

Understanding how many biases are there in a neural network?


How to subtract a datetime from another datetime?


Find the last two nonzero digits of $700^{2^{88}}$

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


Error with Qtcreator when running project "error: Unknown module(s) in QT: qml quickwidgets svg quick"

What's the development package for Qt5 in 14.04


Setting focus in between the text on input field

Set keyboard caret position in html textbox


Can quantitative model explain away our world?

Can we simulate the whole universe in computer?


Gauss Law Question. Could anyone explain to me why does S3 is 0 in this lecture note example?


Prove that $\{(1 2),(1 2 ... n)\}$ can generate $S_n$

$(12)$ and $(123\dots n)$ are generators of $S_n$


SQL query to split column data into rows


Change Add comment form but not Edit comment form, and vice-versa

How to know add/edit page in hook_form_alter?


Does community user auto-protect old questions?

Automatically protect questions with three or more low-rep-user deleted answers


Java Error when using the line usbList.add(roots[i]);

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


Is there a difference between "" and {} in BibTeX?


Parsing CSV with comma as decimal separator in pgfplots

pgfplots import data from table with comma as decimal separator


Why do we need "Off" after verbs (not phrasal)?


Old sci-fi short story about robots ``protecting'' mankind

SF anthology story about mysterious android servants


Why does the command shuf file > file leave an empty file, but similar commands do not?


Proving that $\cot^220^\circ + \cot^240^\circ + \cot^280^\circ = 9$.


Creating a buffer based on area (i.e. sqm) instead of distance

Growing a PostGIS geometry by a percentage


Enter "&" symbol into a text Label in Windows Forms?


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


Computation between two different kernels in Cuda

Visual Studio - filter nvcc warnings away


Domestic to international luggage allowance

Baggage allowance inquiry with two different airlines in one ticket


how do i include sm_11_atomic_function.h?

Some issue with Atomic add in CUDA kernel operation


Remove faded/ignored-tag questions from results

How do I hide posts matching my ignored tags?


How do I suppress the date line from 2-line java.util.logging output?

How do I get java logging output to appear on a single line?


Suspicious Calendar Events, Spam Phone Calls, and Outgoing Messages—Has my iPhone been hacked?


Cannot use code block directly below list

Code block is not properly formatted when placed immediately after a list item


The limit of a sum $\sum_{k=1}^n \frac{n}{n^2+k^2}$ as $n\rightarrow\infty$


How to remove common lines between two files without sorting?

Compare 2 files and remove any lines in file2 when they match values found in file1


Replacing spaces with underscores in JavaScript?


JavaMail API to iMail -- java.net.SocketException: Permission denied: connect


uinstall ubuntu 10.04 and download windows 8 from dreamspark free for students

How to remove Ubuntu and put Windows back on?


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


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


How to deduce the boundary for heat ball?


Facebook-derived profile images are not displayed in Firefox when tracking protection is enabled

Do not load Facebook-based avatars directly from the Facebook CDN


Are querystring parameters secure in HTTPS (HTTP + SSL)?


Find $f(x)$ where $ f(x)+f\left(\frac{1-x}x\right)=x$


CSV Import with Notice: Undefined Index issue

Reference - What does this error mean in PHP?


Should an apostrophe be used with a z at the end of a word?

Possessive form for a surname ending with "z"


How do you prove $\sqrt{n}$ is an integer or it is irrational?

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


Modified files in a git branch are spilling over into another branch


Compare objects in LinkedList.contains()


Resources/Books for Discrete Mathematics


Calculate the relative path of a file in java

How to construct a relative path in Java from two absolute paths (or URLs)?


Mathematica equivalent to gnuplot's fsteps option?

How can the behavior of InterpolationOrder->0 be controlled?


How to stop iTerm2 closing tabs on error?


Let a,b,c be positive real number, proof.


my app keep crashing because of RuntimeException

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


Counting functions satisfying $f(j)<f(i)+j-i$ for all $i<j$

Count number of increasing functions, nondecreasing functions $f: \{1, 2, 3, \ldots, n\} \to \{1, 2, 3, \ldots, m\}$, with $m \geq n$.


Analyticity of $\overline {f(\bar z)}$ given $f(z)$ is analytic

How do I rigorously show $f(z)$ is analytic if and only if $\overline{f(\bar{z})}$ is?


Loop through a C# enum's keys AND values


What does it mean if Community “asks” a question?


Deleting a particular character from a string in python

Python: Delete a character from a string


The only idempotent element in $\Bbb Z_{51}$ are $0$ and $1$.


Is the ethical necromancer still viable in 5e?


Window function IGNORE NULLS workaround for PostgreSQL

Carry over long sequence of missing values with Postgres


Correct HTML mark-up syntax? (to remove whitespace between inline-block elements)

How do I remove the space between inline/inline-block elements?


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


How does relativity explains time-dependent behaviour for objects not experiencing time?

How does a photon experience space and time?


Undefined reference to `pow' and `floor'


Need new house location added to Google Maps

House address is not listed on Google Maps


C++ - Defining a specific template for a subclass

Why can templates only be implemented in the header file?


How to keep player in the center of the screen but let him move to the edge of the map without moving camera there?

How do I keep my character centred on screen?


What's the fastest way to remove all files & subfolders in a directory?

How can I delete a folder with lots of subfolders fast?


How is a second measured? And why is it measured that way?


Evaluate $\int_{0}^{\pi} \log \left(m^2-2m\cos x+1\right)\: dx$

Computing $\int_{0}^{\pi}\ln\left(1-2a\cos x+a^2\right) \, dx$


How to extract the masses from LIGO strain data?

How were the solar masses and distance of the GW150914 merger event calculated from the signal?


How do I call a button to perform an action in my code?

How do you add an ActionListener onto a JButton in Java


What is a proper way to express derivatives with respect to a symbol?

Analogue for Maple's dchange - change of variables in differential expressions


Cannot remove a directory due to read-only file system

How to fix "sudo: unable to open ... Read-only file system"?


What are the alternative explanations for the indirect evidence of gravitational waves?

Is there any alternative theory that gets rid of gravitational waves, yet fits all data?


Probability of a dot in a square to have larger distance from sides compared to distance with diameter


Show that if $a$ and $b$ are positive integers then $(a, b) = (a + b, [a, b])$.

$\gcd(a,b) = \gcd(a + b, \mathrm{lcm}[a,b])$


What could possibly go wrong modifying NSMutableArray from multiple threads without synchronizing access to it?

What happens if NSMutableArray is modified by multiple threads at the same time? (if the objects it contains are retained elsewhere)


What is the equivalent of ANTLR3's Caret(^) in ANTLR4?


How does Synchronous Transmission provide synchronized clocks?

What is the exact difference between synchronous and asynchronous serial transmission?


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


Dropdownlist On Second Choose First Selected wont Display:none;

Dropdownlist Onchange Show other Dropdownlist


What is the number of invertible $n\times n$ matrices in $\operatorname{GL}_n(F)$?


Convert one date format into another in PHP


Proving that the fundamental groups of two spaces with same homotopy type are isomorphic


Interstellar Movie: Black hole shown in the movie

What does this depiction of a black hole in the movie Interstellar mean?


Is $R/N(R)$ a faithfully flat $R$-module?


How can I find the determinant of a $n\times n$ square matrix whose all diagonal elements are equal to $a$ and off-diagonal elements are equal to $b$?

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


How can I eliminate spacing between inline elements in CSS?

How do I remove the space between inline/inline-block elements?


What's the difference between 12.04 and 12.10?


"which alias" and "whereis alias" doesn't return anything

Why “which” returns none on some commands I can run?


How do I change directory to home directory in Script? (bash)

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


Is avoiding to report underage users a violation of the moderator agreement now?

Why are moderators now required to report underage users?


Is there any need of antivirous program such as microsoft windows?

Do I need to have antivirus software installed?


Upgrade Kubuntu 20.04 to latest release (21.04), instead of next release (20.10)

Can I skip over releases when upgrading?


Prove: $\lim\limits _{n\rightarrow\infty} \left( ((n+1)!)^{\frac{1}{n+1}}-(n!)^{\frac{1}{n}} \right)=\frac{1}{e}$

Find the limit of: $\lim_{n\to\infty} \frac{1}{\sqrt[n+1]{(n+1)!} - \sqrt[n]{(n)!}}$


More than one version of my site is indexed, is this normal?

How do the combinations of http/https and naked/www in Google Search Console work?


current amplification on common emitter mode of bjt transistor

Basic operation of a bipolar junction transistor


Waiting For Network Config and Purged Network Manager in 12.04

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


the definite article in front of a noun that is followed by a defining clause

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


Simple Past vs. Present Perfect for recently completed actions


javascript or jquery change different Images on different button clicks

Programmatically change the src of an img tag


How could I prove whether the infinite series $n!/n^n$ converges or diverges?


listings package-Problem with formatting the parenthesis

Problem with literate and breaklines=true in listings package


Does anyone know how to interpret this solution to a rational equation?


How validation field with ajax on event onblur, if managed bean is not updated

Trying to understand immediate="true" skipping inputs when it shouldn't


Why enum's size is not optimized to 2 bytes?


How do I cut off excess overlap of two objects?


What is the absolute safest way to find out if a URL exists or not?

Test if a website is alive from a C# application


Difference between continuous and non-continuous data .

What is the difference between discrete data and continuous data?


C# String.Format Input string not in a correct Format

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


Intermediate fields of a finite field extension that is not separable


When is a CDATA section necessary within a script tag?


In MATLAB, can I have a script and a function definition in the same file?


How to I mount a folder from my computer into a specific spot on my VM AND have it owned by me, not root?

How can I change the owner of VirtualBox shared folders on Ubuntu 18.04 guest VM?


First time using bevel tool, doesn't bevel evenly. What am i doing wrong?


C Macro definition to determine big endian or little endian machine?


The Maximum possible order for an element $S_n$

Maximal order of an element in a symmetric group


Can a wizard transcribe prepared spells from multiclassing?

Can a multi-class Bard/Wizard write spells known from Bard, into Wizard spellbook?


Single-threaded apartment - cannot instantiate ActiveX control


Pasting to Excel from Word - stop a Word new line being converted into a new cell

How do I copy Word tables into Excel without splitting cells into multiple rows?


Why can't SQL Server optimizer use foreign key

Hash join between master/detail tables produces too-low cardinality estimate


Story where aliens visit a post-apocalyptic Earth and they find the remnants of humanity

Anthology for children; contains story about friendly Martian on postapocalyptic Earth


Install a single specific package from future distribution

Install packages from newer release without building (apt pinning)


Relation of $det(AA^T)$ and $det(A^TA)$ with Range and Nullspaces of a Matrix

Under what conditions is $AA^T$ invertible?


Time change in Windows after booting to Ubuntu


Sending images from Canvas elements using Ajax and PHP $_FILES


Can we increase the navigation's contrast on Meta.SE?


How can I recover a deleted file on Android?


Prove by induction $\left(1-\frac{1}{2}\right)\ldots\left(1-\frac{1}{2^{n}}\right)\geq\frac{1}{4}+\frac{1}{2^{n+1}}$

Manipulating expression $(\frac{1}{4}+\frac{1}{2^{n+1}})(1-\frac{1}{2^{n+1}})$ in inductive step.


macos - terminal deleting parts of filepath beginning with "$"

How do I remove a file I accidentally created named $file?


How to have AngularJS output escaped HTML


Posts and comments minimum length validation being bypassed by the U+2800 Unicode character "⠀"

Using Unicode Zero Width Spaces allows all space comments


Proper punctuation and quotation marks when 2 separate quotations

How should I punctuate around quotes where the punctuation required by the quote interferes with the punctuation of the sentence?


(!potential spoilers for people who haven't played) In the Witness, how do I solve this puzzle?

How to line up the pieces at the coast near the shipwreck?


Minimum number of sub groups so that each element is grouped with every other element at least once

How can I find the smallest set of groups of $n$ elements such that every element is in the same group as every other at least once?


Update is not applicable to the equipment, Windows Server 2016

Update KB4088849 is not applicable to the equipment, Windows Server 2016


Neutron star aliens come to visit Earth. As they leave, they give us three gifts including removing black holes from the Sun

Tiny lifeforms on planetoid that live at accelerated time rate


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


In comics does Batman have a rule against killing?


Why is 'U+' used to designate a Unicode code point?


can i install perl module in my hosting provider machine

How can I use a new Perl module without install permissions?


How to gracefully and temporarily stop search engines from crawling a website

Website is under maintenance - how to restrict access?


How can I bulk download images from a photo gallery-like website?


Why do we say "It's time we ate" and not "It's time we eat"?


How to generate html elements dynamically with Javascript

Event binding on dynamically created elements?


How can I intercept method call in ruby?


What does "Restricted" (aka. "Do not") system icon on Lollipop mean?


Prove that If x and y are integers and x + y is odd , then x−y is odd.

Prove that for all integers $x$ and $y$, $x - y$ is odd if and only if $x + y$ is odd.


How do I solve $x^{k}=k^{x}$, given k, analytically?

The general solution of $x^a = a^x$ for real $a >0$


What are the different widely used RAID levels and when should I consider them?


Is it safe to delete the "ipch" folder - Precompiled headers?


Generate 0 or Null values for data that doesn't exist

How to Determine Values for Missing Months based on Data of Previous Months in T-SQL


Isn't "there're" a contraction for "there are"?

Is "there're" (similar to "there's") a correct contraction?


Run sshd on multiple ports but different domains

How to use DNS/Hostnames or Other ways to resolve to a specific IP:Port


Vertical spacing of \circ used for degree within \frac

Superscripts appear in various weird places in fractions


polyglossia or bidi bug: [\d\.] gets inverted to [\.\d]


Why are the materials of my objects not rendering?


Google Chrome not retaining default browser selection in Ubuntu 15.10

google-chrome-stable keeps asking if it should be set to default


When to use “the“ with the word “church“?

Why is "the" dropped in "I go to school by bus"?


Fractional and complex rank hyperoperations

Continuum between addition, multiplication and exponentiation?


Would like to withdraw my flag for closure in favor of vote to close

Should flagging a question for closure prevent close-voting?


Partial application updates in ClickOnce using Visual Studio build


Is there a rule in British English about how to pronounce "either"?


Is it possible to have connecting loop lines (like algorithm2e) in algorithmic?


Why does my app throw a null pointer exception?

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


Difference between "are you done" and "have you done."


Black screen with REGION_VIOLATION while trying to install Ubuntu dual boot

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


Some question titles get cut off by the right margin here on Meta

Haalp! Really long question titles are a bit borked! You can (no longer) see the bug in action right here


Boot drops to a (initramfs) prompts/busybox


How do I change the node view mode before rendering?

How can I programmatically change the view mode?


Valid Commands That Keep A Finally-block From Executing in Java

Does a finally block always get executed in Java?


Problem with composite letters in section labels


Prove: A nonempty subset B of a ring A is closed with respect to addition and negatives iff B is closed with respect to subtraction

Nonempty subset H of group G is subgroup iff $ab^{-1} \in H $ for any $a,b \in H$


getting a java.lang.NullPointerException: in a simple app


How to show that $f(A)$ is an open interval.

If $\varphi \in E'$ and $A$ is convex and open then $\varphi (A)$ is an open interval


Has the Magical Community breached the Final Frontier? (aka Wizards in Space?)


Why can I leave a parameter off a LINQ condition?


Panasonic Eneloop BK-3MCC (4th gen) - where I can find maximum discharge current?


Template issue causes linker error (C++)


Show that $A_n$ is the kernel of a group homomorphism of $S_n \rightarrow \{−1,1\}$.

The alternating group is a normal subgroup of the symmetric group


When should I use "shall" versus "will"?


Should I increase my partition size when the volume “Filesystem Root” has only few disk space remaining?

The volume "Filesystem Root" has only 533.9 MB disk space remaining


Low Voltage AC Smoothing Capacitor Calculation


I was solving a capacitor problem the other day and encountered a question on redistribution of charges

How can a capacitor discharge if there is no field outside?


Tricking someone into being the willing target of a spell

Can you make an unwilling creature willing? In other words, what defines “willing”?


Need an algorithm to calculate all variations (Combination Calculation)

Algorithm to return all combinations of k elements from n


what is the real Intuition behind the Standard deviation


Trade Off / compromise to zoom lenses with longer focal ranges

Why choose an 80-200mm over an 18-200mm lens?


How to execute the html code added into the string passed as a string value to attr tag?

How can I use a carriage return in a HTML tooltip?


Traveling Karachi Pakistan on Expired NICOP + online Renewal Slip

Travelling to Pakistan with expired NICOP


Detect IE version (prior to v9) in JavaScript


Does getting hit by a gravitational wave hurt?

How close would you have to be to the merger of two black holes, for the effects of gravitational waves to be detected without instruments?


Is it possible to force a query to ignore the server option "remote proc transaction promotion" so it doesn't promote remote proc transaction?

Using INSERT INTO...EXEC AT linked server into temp table fails with Msg 7391


removing a list of columns from a data.frame using subset

How do you remove columns from a data.frame?


How to use nevertheless and nonetheless?

Difference between nevertheless and nonetheless


OS X El Capitan downloading froze and now it won't let me download?

El Captain update download doesn't continue after restarting the Mac


Is it acceptable to transform data for use in a GLM using Poisson?

Should quantitative predictors be transformed  to be normally distributed?


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


Wave Packets, Group velocity, and Phase velocity

Group Velocity and Phase Velocity of Matter Wave?


NLS missing message: CANNOT_FIND_FACELET_TAGLIB


How can I group numerical data into naturally forming "brackets"? (e.g. income)


How can I find the center of ellipse given an Arc and ellipse radii?


How to block / deny linux user from accessing a site with htaccess?


Where does YouTube put videos on my device?

Where does YouTube's offline feature store video files?


What is the implication of an expanding universe on a small scale?

Why does space expansion not expand matter?


Why Math.pow(a, b) is NaN when a is a negative number and b is a non-integer?

Math.pow with negative numbers and non-integer powers


Error while creating OS X Mavericks bootable USB


Use a Delayed Choice Quantum Eraser to communicate Faster Than Light

What's wrong with this experiment showing that either FTL communication is possible or complementarity doesn't hold?


Can I position an element fixed relative to parent?

Fixed position but relative to container


If $0 \le f(x) \le M$, prove $\lim\limits_{n \to \infty} \left[ \int_0^1 f(t)^n \, dt \right]^{1/n} = M$

If $f(x)$ is continuous on $[a,b]$ and $M=\max \; |f(x)|$, is $M=\lim \limits_{n\to\infty} \left(\int_a^b|f(x)|^n\,\mathrm dx\right)^{1/n}$?


Collectible card game, cards and effects


Why the cross-threading exception raises only when debugging?

Why is cross thread operation exception not thrown while running exe in bin\Debug


Controlling frame number and background behaviour from a template

Theme with a different footline for the titlepage


How to prove that $(P \supset Q) \equiv (\neg Q \supset \neg P)$is disallowed in intuitionistic logic?

how to prove that (P⊃Q)≡(¬Q⊃¬P) ( P ⊃ Q ) ≡ ( ¬ Q ⊃ ¬ P ) is disallowed in intuitionistic logic?


Closed Subsets of Compact Spaces Using Subsequences Definition of Compactness

Is a closed subset of a compact set (which is a subset of a metric space $M$) compact?


How exactly do I install Minecraft Mods and what is Forge?


Low Quality Post review doesn't show the content when completed with Edit

Only actions taken are displayed on question while checking the history of Low Quality Posts review


Major Performance Issues with Java 8 ScriptEngine Compared to Java 7

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


How did Princess Leia remember her mother?

How does Leia have memories of her mother?


QGIS export to GPX: Error "Geometry type of 'multi polygon' not supported" (GPS tools)

Can I export a polygon shapefile to a Garmin device?


Forgot to add Sugar in cookie dough . Is there any way to add sugar?

I forgot to add brown sugar to my chocolate chip cookies......and didn't realize I forgot the brown sugar until it was done cooking


Unable to set drupal_set_message() after logout redirect

How do I display a message after redirecting users from the logout page?


Always On Synchronous Commit Mode With Large Delays

Timeout for Always On Synchronous Commit Mode


What is the most efficient way to level up my blacksmithing while conserving as much of my resources as possible?

What is an effective way to level smithing?


if ${m/n}$ is an approximation to $\sqrt{2}$, prove $m/2n+n/m$ is always a better approximation.


Why is it necessary that different observers agree on the value of the spacetime interval $ds^2$?

Do we know why there is a speed limit in our universe?


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


How can a return flight from A to B cost 1000 euros, while the same flights from B to A cost 500 euros?

Why do return flight costs vary depending on the country of origin?


RegEx for Javascript to allow only alphanumeric


What is the oscillating quantity in matter waves?


Case-insensitive string comparison in C++


Where can I ask for help with web design?

Where can I ask an open discussion question?


Let $f(x)=7x^{32}+5x^{22}+3x^{12}+x^2$. Find the remainder when $x^2+1$ divides $f(x)$ and $xf(x)$.

Let $f(x) =7x^{32}+5x^{22}+3x^{12}+x^2$. Then find its remainder in the following cases.


Android - NullPointerException hashCode() on a null object Reference


Bash script not running in background with nohup


Make 'smart' USB Dedicated Charging Port

What is the ideal way to handle data pins D+ and D- on a USB power adapter to be compatible with fast charging on devices?


How can apache access a file in a directory which has no execute permission?

How to make apache open files that have only owner execute permission for all users?


How do I check the integrity of a storage medium (hard disk or flash drive)?


Why don't the Death Eaters kidnap Harry?

Why was Harry never targeted en route to Privet Drive?


Canonical everyday-life example of a technology that could not work without humans mastering QM in analogy to the application of GR in GPS?


Seeing own posts that have been flagged in the 10k tools


Why Dumbledore never thought to check on Moaning Myrtle?

They knew where she was. Why didn't the Ministry of Magic ask Moaning Myrtle's ghost about her death?


"Enable Wifi" Missing eventhough driver is installed

Why do I get "Required key not available" when install 3rd party kernel modules or after a kernel upgrade?


java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.myapplication/com.example.myapplication.Main2Activity}:

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


What is the name of this young-adult book series from the '90s featuring miniature aliens?

A story about a whole crew of aliens who visit Earth, befriend a child


php - send email with french accents in subject


Python -> 2D list changing at every index?

List of lists changes reflected across sublists unexpectedly


Javascript, How to change a value of an internal css class

How do you read CSS rule values with JavaScript?


What happens to the energy when two waves completely interfere destructively?

What happens to the energy when waves perfectly cancel each other?


If my world has silver instead of Tungsten, can I still make an Emerald Staff?

What items are mutually exclusive between worlds?


Add a "recently viewed" tab in the user account page

Tracking the questions you've recently viewed or visited


catch perl errors from powershell script

PowerShell: Capture the output from external process that writes to stderr in a variable


How do you create a CanDestroy tag with a block requiring a data value?

Is it possible to use NBT tags in commands in Minecraft: Bedrock Edition?


Can you calculate probability with mean, SD, skewness, and kurtosis

Skewness, kurtosis and how many standard deviations values are from the mean


To prove $\gcd\{p^2-1: p $ is a prime $ \geq 7 \}=24$

For any prime $p > 3$, why is $p^2-1$ always divisible by 24?


Android: Is it possible to refresh just one item in a listview?


Finding the limit of $a_{n} = \frac{1}{2}(a_{n-1}+a_{n-2})$ for arbitrary $a_{0}$ and $a_{1}$.

Finding $\lim_{n\to\infty}a_n$ if $a_0=a,a_1=b$ and $a_n=\frac{1}{2}(a_{n-1}+a_{n-2})$ where $a, b \in \mathbb{R}$


How to show distance between boundary of an open set and a compact subset is positive?


call a phtml file in Layout Update XML to set title in magento

How to call a phtml file in cms page to set page title


Using map with structure as key - value doesn't save


How to import Access 2010 database (.accdb) into MySQL

How can I convert an MDB (Access) file to MySQL (or plain SQL file)?


For $x>0$, $x + \frac1x \ge 2$ and equality holds if and only if $x=1$

How to prove this inequality $ x + \frac{1}{x} \geq 2 $


Convert string to Title Case with JavaScript


Finding the limit of $\frac {n}{\sqrt[n]{n!}}$


Relation between $X\in L^p$ and $n^{-1/p}\sum X$ for i.i.d. sequence.

How to show that $p$th moment being finite is equivalent to a limit existing


How to get rid of space between divs when display inline-block and stacked horizontally?

How do I remove the space between inline/inline-block elements?


Challenges in interpretation of variable selection from LASSO and OLS

For linear classifiers, do larger coefficients imply more important features?


Asymptotic distribution of sample variance of non-normal sample


How can I prove Holder inequality for $0<p<1$?


Convert JSON string to JavaScript Object for iterating

Safely turning a JSON string into an object


df -h shows disk mounted in /mnt but /mnt size doesnt add up

Disk full, du tells different. How to further investigate?


Replace Windows 10 with Ubuntu, keeping D: drive

How to Install Ubuntu on separate hard drive in a dual boot?


Prove convergence of the sequence $(z_1+z_2+\cdots + z_n)/n$ of Cesaro means

On Cesàro convergence: If $ x_n \to x $ then $ z_n = \frac{x_1 + \dots +x_n}{n} \to x $


Python: Break vs fulfilling while loop condition?

Is while (true) with break bad programming practice?


Will Canada accept my passport near expiration date?

If my passport and Canadian visa expire in July can I still travel in April


How to use files names on command line copied in File Explorer?


If A and B are square matrices of same order such that AB=A+B then prove that AB=BA


Find the value of $\sin\frac{2\pi}{7}+\sin\frac{4\pi}{7}+\sin\frac{8\pi}{7}$


Retrieving and Displaying Data From a Table


What's the difference between iterating over a file with foreach or while in Perl?


Do I need a visa to travel to South Africa with an Australian convention travel document?

Do I need a visa to travel to South Africa with a Germany refugee travel document?


Bad substitution trying to rename extension

Is it possible to use `find -exec sh -c` safely?


Are there C++ free and fast (maybe standalone) refactoring tools for Windows?


About the topology of the Heisenberg group

Is "connected, simply connected" Redundant?


Does used Apple hardware comes with macOS license?


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


400 people are in a room. What is the probability of two random people having the same birthday?

Probability that two people share the same birthday?


Book in which girl's father marries a woman with two children who are all immortal

Girl visits somewhere in the south, and meets a family that doesn’t age


How to perform natural (lexicographic) sorting in R?

How to sort a character vector where elements contain letters and numbers in R?


Software Installation Error in Ubuntu 16.04 LTS

Apt/Synaptic needs to reinstall package but can't find the archive for it


some webpages not opening in any browser


Why I get the "omitting directory" error using globbing in cp command?

How to copy a file to multiple directories using the gnu cp command


"Multiple Forms In Visualforce Page" caught by Checkmarx scanner


Can I have more than four non-basic lands with the same name in my deck?

Is there a limit to the number of special lands I can put in my deck, like the Temples?


Is virtual box as effective as dual booting windows?

Deciding between virtual machine or dual-boot setup


I'm looking for a Drupal Commerce Shipping in-cart estimate


Do vanity lights require a junction box?


"How good do you think it is?" or "How good do you think is it?"

Which is correct? - "Guess, what it is?" or "Guess, what is it?"


Null Pointer Exception because of a class member

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


Direct Proof that $1 + 3 + 5 + \cdots+ (2n - 1) = n\cdot n$


Reading and parsing email from Gmail using C#, C++ or Python


Steam - Disable Two Factor Authentication


Why do the measurements of this object seem erroneous?


Java - IF condition not reading entered String variable value


Best way to concatenate List of String objects?


Can't update RVM - "fatal: Unable to find remote helper for 'http'"


Is religion "entirely" absent in the Harry Potter series?

Are there practiced religions in the wizarding world?


How to specify frame tick labels without modifying the Automatic tick marks?

Formatting Ticks and FrameTicks labels with a function


Regarding self complementary trees if such exist.


Upgrade Ubuntu 7.04 to Ubuntu 14.10 on dual boot system using USB stick w/no network

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


Undo git pull, how to bring repos to old state


Failed to log in: the authentication servers are currently down for maintenance

Is there a list of error codes for Minecraft?


Why didn't Eru stop Melkor and Ungoliant from destroying the Two Trees?

Why didn't Eru stop the Dark Lords from causing trouble in Middle-earth?


get element as selector in jquery which is loaded after page load

Event binding on dynamically created elements?


Vertically move in a helicopter to go somewhere on Earth

Why does the atmosphere rotate along with the earth?


Why does a cyclist/motorcyclist bend when making a turn?

Does leaning (banking) help cause turning on a bicycle?


Short story about a place where lost things are?

Short story where people can swap minds with others


adding double in swift and floats give different answers. And both are wrong. why?


how i can install any program with terminal

How do I install applications in Ubuntu?


how to control vertical placement of span independent of image

How can I vertically align elements in a div?


I dont know what to do with Ubuntu ISO file


Is GTA 5 backwards compatible between Xbox 360 and Xbox One S?


What happens to current in a Parallel Circuit

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


Why magnet attracts a magnet? Coz we know that magnetic force cannot change the kinetic energy..then why magnet attracts or repel other magnet?

How can magnets be used to pick up pieces of metal when the force from a magnetic field does no work?


Prove $A = \{x ∈ X : f(x) ≥ a\}$ has finite measure

Prove that $f\in L^1(A)\Leftrightarrow \sum_{n}^{\infty}m(\{ x\in A : f(x)\geq n \}) < \infty$


Is it possible to unearn a hat in Winter Bash?


How do you remove the ability for a user to make a comment or post on a page?


Magic similar to psychic abilities, including hiding the group and starting fires

Childrens fantasy, blind monk leading boy who can control the elements


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


What stops gradient descent from finding the largest error?

How can change in cost function be positive?


Converting infix to post fix expression, is the associativity always left to right?

Is Left associativity only for Postfix expression?


Working with sets, set difference, union and intersection

de morgan law $A\setminus (B \cap C) = (A\setminus B) \cup (A\setminus C) $


What’s the right calculation for the Homunculus’s hit points for the 2019 UA Alchemist Artificer?

Do Arcane Ward's starting hit points include the INT modifier once or twice?


Why an array reference is passed in the method instead of its values?

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


How to Connect/Disconnect to WiFi Via Terminal

How to connect and disconnect to a network manually in terminal?


Probability of people attending same and different places


Why doesn't the "protected by" flag consider stats from other Stack Exchange sites?

Why is the Association Bonus ignored when trying to answer a protected question?


is this font called Computer Modern, is there a way to find out which font I am using on overleaf?

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


Weird Gray Blotches Showing Up During Render


X, Y are independent normal random variables. What is the pdf of Z = X/(X+Y)?

X,Y are independent standard normal distributed then what is the distribution of $\frac{X}{X+Y}$


Prove that a certain ideal $I$ of $\mathbb Z [x]$ is not a principal ideal.

Show that $\langle 2,x \rangle$ is not a principal ideal in $\mathbb Z [x]$


ionBlur Event: Detect the element that is receiving the focus

When a 'blur' event occurs, how can I find out which element focus went *to*?


Workflow for converting LaTeX into Open Office / MS Word Format


Is there a term for a word that serves as its own antonym?

Can anyone provide me with a list of English words that are their own antonyms?


How safe is it to photograph sunset or sunrise?

Can the sun damage the camera sensor? Under what conditions?


Fortran compilers/viewers that let you see the dependencies of a given module

How can I visualize Fortran (90 or later) source code, e.g. using Graphviz?


purge all packages manually installed via apt-get from the moment you installed the Ubuntu OS

Generating list of manually installed packages and querying individual packages


no root file system defined error in ubuntu 13.10 installation


Which programs can I use to edit PDF files?


Can I get married in UK on a visit visa?

Can I marry in the UK while on a standard visitor visa?


my question is always put on hold as off-topic or duplicate or closed why?

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


One word for a person who repeats the same issue over and over again

What's the English equivalent of "Drilling one's head"?


How can something appear on the close queue without a selected reason?

Questions with no close votes appearing in the close vote queue?


Is the total energy of the universe zero?


Why does my path not get saved even after editing ~/.bashrc?


How to prevent Lua-based macros from acting on nested macro names in ConTeXt?


C++ linker error - cannot see why its not linking? (full complete code example included)

Why can templates only be implemented in the header file?


sudo python3 is running different version than running python3 without sudo


Why can't we have this() and super() together in Java?

Why can't this() and super() both be used together in a constructor?


How to produce a USB stick from my Ubuntu?

How to create an iso from current installation


Is the integral $\int_0^\infty \frac{\mathrm{d} x}{(1+x^2)(1+x^a)}$ equal for all $a \neq 0$?


Am I allowed to make a Stack Overflow clone?


Why my ubuntu 16.04 LTS suddenly become very slow?


$\sum^n_{k=0} {{k} \choose {l}} = {{n+1} \choose {l+1}}, n, l \in \mathbb{N}$ proof

Proof of the Hockey-Stick Identity: $\sum\limits_{t=0}^n \binom tk = \binom{n+1}{k+1}$


Setting bitmap via onActivityResult: Failure delivering result

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


Window 7 High Contrast = Invisible Text/Graphics - Desktop & Websites

High contrast theme and Firefox-Font colour issues?


I need to measure liquid temperature down to -80C

Sensor for ultralow (to -85°C) freezer monitor


Is "hooray" generally considered to be onomatopoeic?


Android SMS Service that run in background and get instant updated

How to receive sms from our android app?


What is the Drupal 6 equivalent or alternative to hook_node_load?


this is not a boarding card go to check-in for visa check and boarding card


Missing dependency when installing Canon Pixma MX330 drivers from michael-gruz PPA

Unmet dependency while installing cnijfilter-mp550series package


Calculating capacitance for three conductor transmission line

Measuring length of two wires inside copper with a TDR


Should names of styles or genres be capitalized?


Difference between $dM/dt $ and $\partial M/\partial t$

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


How to split a dictionary into "n" parts


Gateway between wireless network and wired network not routing packets

How to Set Up Linux Server As A Router with NAT


Getting incorrect answers when computing $\int_{0}^a \frac{\cos(\pi n x/a)}{x^2+a^2}\ \! \mathrm dx$?

An integral : $\int_{-a}^a \frac{\cos(\pi n x/a)}{x^2+a^2}\mathrm dx$


Compiling C++ code to .EXE which returns double


Why internal hard-disk is showing twice? Ubuntu 20.04


"limited" access to wifi after upgrading to Windows 8.1

Windows 7 unidentified network (or limited access) after hibernate


Problems with a non-inverting op amp configuration when input voltage is too low


How to get the population of Maryland for all years Wolfram has data on?

How to get the US population for every year Wolfram has data on?


Why can Windows Run window run commands not in PATH?

How does the windows run dialog locate executables?


Prevent Outlook from automatically deleting meeting emails


Single quote or Double quote in Node.js?

When should I use double or single quotes in JavaScript?


Sausage left to thaw more than 2 hours - is this safe to eat?

Is there a problem with defrosting meat on the counter?


Why cannot we add gravity in quantum mechanics without additional dimensions as done in bosonic or superstring theory?

A list of inconveniences between quantum mechanics and (general) relativity?


Java Understanding Java main method on logic


Regex to extract an IP address from a string

Regular expression to match DNS hostname or IP Address?


What is the synonym/antonym for "feminist"/"feminism"?


Probability of difference for uniform sample of consecutive numbers

Maximum gap between samples drawn without replacement from a discrete uniform distribution


Triple booting Ubuntu mate, Windows 10, and CloudReady (chromium os)


When apple replaces the battery in a 15" MBP retina, do they replace the entire top portion of the case?


Contracting with Levi-Civita (totally antisymmetric) tensor


If $a+\sqrt{a^2+1}= b+\sqrt{b^2+1}$, then $a=b$ or not?

is $y = \sqrt{x^2 + 1}− x$ a injective (one-to-one) function?


Displaying message through window alert in Django templates

Django Template Variables and Javascript


can't change permissions on /usr/lib folder


Why can't CUDA's examples makefile find the CUDA libraries?


Merge two arrays of both values and make as one array like as one key other value in php

Merge two arrays as key value pairs in PHP


How do you convert mins to hour:min in C#?

What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?


What is the difference between diffraction and interference of light?

Why is it difficult to differentiate between interference and diffraction?


http://stackexchange.com/ onebox is white

Site oneboxes are often white, invisible


Why is spacetime curved by mass but not charge?


SE software misleading; should handle expressed desire to delete a question differently, not offer a false choice

If I can't delete my own question, why ask us for permission to delete the question?


Accessing member function after calling delete to an object

C++ delete - It deletes my objects but I can still access the data?


What are the alternatives to Socket Programming?


Ubuntu 18.04.1 LTS update does not work - no release file / GPG errors


How can I safely pass an argument containing '{{}}' to a bash script?


Show the only homomorphism $F:\Bbb Q\rightarrow \Bbb Q\setminus\{0\}$ is the trivial map

Every group homomorphism from $(\mathbb{Q}, +)$ to $(\mathbb{Q}, \times)$ is the trivial map.


Why does assigning a role from the role hierarchy page bypass validation rules?

Salesforce - user trigger not invoked when user role changes


Scepticism regarding the exponent of -2 in Coulombs law?

Does Coulomb's Law, with Gauss's Law, imply the existence of only three spatial dimensions?


What 1980's kids book series about boy learning magic spells?

Identify a story about a teen boy who learns to use magic with his lizard companion


$\int_{0}^{+\infty} \frac{dx}{f(x)}$ converges if and only if $\int_{0}^{+\infty} \frac{x}{F(x)}dx$ converges


If $A$, $B$ are both pairwise independent of $C$, do we have that $A \cap B$ is also independent of $C$?


Determining total number of tickets sold

Why are these estimates to the German tank problem different?


Query to find sql server services currently running

SQL query or method to list all sql services running


Contribution of each eigenspace's error to the loss

Gradient descent of $f(w)=\frac12w^TAw-b^Tw$ viewed in the space of Eigenvectors of $A$


Use "default" figure if file is missing?


What is the significance of the corresponding author?

Does "corresponding author" carry an implied meaning?


Why do mac and synology report different file sizes?

Confusion with storage capacity (powers of 10 and 2)


Problems referring to a nested type of type as argument of a class template

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


What is behind the definitions of work and energy?


Consecutive suggested edits on the same post by the same user


Echoing a string in bash with brackets surrounding it returns 'b'

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


How do I hide unnecessary .directories in my home directory?


Connection between Group of Schrodinger equation and energy level degeneracy

What is the relationship between symmetry and degeneracy in quantum mechanics?


How is it decided/defined as to which file of an app will reside where?

How to understand the Ubuntu file system layout?


Shouldn't it be impossible to fall into a black hole?

Does someone falling into a black hole see the end of the universe?


How to export installed device driver on Windows 7 for later use?

How do I go about backing up/saving installed device drivers in Windows?


How can I use '<' in the value attribute of a component

How to insert special characters like & and < into JSF components' value attribute?


Change "chapter" to "Chapter" - How to do this using autoref?

\autoref does not capitalize initial character in sentence when referencing label in listings environment


Why did Skynet not use a T1000 again in Terminator 3?

After T-2, why not send back another T-800?


why isn't the color I added on the header background visible?

How do you keep parents of floated elements from collapsing?


Where can I view the list of all the flags I have raised?

Where can I find the flagging summary on my profile?


Do Chinese citizens require a visa to go to Hong Kong for less than 7 days?


Can I decide the return type of a method by passing it as a parameter to the method in java?

How do I make the method return type generic?


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


How to remove "phone style" Gnome swipe to unlock


I want to ignore square brackets when using javascript regex


How to pass variables from PHP to Javascript

passing php variable from controller to javascript function in the head of a view


Does Python have a .methods method like Ruby?

Finding what methods a Python object has


A characterisation of planar complete $k$-partite graphs

Multipartite graphs which are not planar


Intersection of an ellipsoid and plane in parametric form


Why ForEach is List member, but not IEnumerable extention method?

Why is there no ForEach extension method on IEnumerable?


there is a lot or there are a lot? over here or at here?

"There is a lot of food and fruit" vs. "there are a lot of food and fruit"


Should I be concerned about my upvote/downvote ratio?

Am I downvoting too much, or are things really that bad?


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


Ideal for $2\times 2$ matrix entry in $\mathbb{Z}$

Show that every ideal of the matrix ring $M_n(R)$ is of the form $M_n(I)$ where $I$ is an ideal of $R$


How can I query all Childcontrols of a Winform recursively?

How can I get all controls from a Form Including controls in any container?


What's the difference between hypothesis, theory and law?


Inline bash program has incorrect mv usage

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


How do I permantly set the command-prompt codepage in Windows 7?

Change default code page of Windows console to UTF-8


How can I enlarge an object so that the new object's surface is 1 cm apart from the initial surface?


4 Bugs chasing each other differential equation


Why does Picasa change the RAW preview after a second?

Why does Picasa open RAW images correctly then desaturate them?


ASP.NET MVC 4 Websecurity.CurrentUserId returns -1

MVC 4 SimpleMembership - Why WebSecurity.CurrentUserId -1 after login


Probability: Expected number of randoms from $0$ to $1$ needed to exceed $1$

Choose a random number between $0$ and $1$ and record its value. Keep doing it until the sum of the numbers exceeds $1$. How many tries do we need?


How do I resolve unmet dependencies after adding a PPA?


Sass operator to include parent's class in the child's rule


How can I install a Canon printer or scanner driver?


Prove the function is not differentiable at (0,0)


Is Happiness of a pokemon the same as Affection?

What is the difference between Affection and Friendship, if any?


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


How to alway paste WITHOUT formating in MacOs Catalina?

Copying and pasting text between applications without style


How to pronounce "$\mapsto$", as in "$x\mapsto f(x)$"?


Can a spell be prepared once and cast multiple times?


How to get the local IP address of a DHCP client host from python

Finding local IP addresses using Python's stdlib


Problem using OptionValue with functions defined by SubValues, and the use of Options for function dispatch


Why is the interaction term defined by multiplying the IVs?

Moderated regression: Why do we calculate a *product* term between the predictors?


How do you specify the name of a primitive created via the Python API?

Adding Named Objects in Blender with Python API


What are the rules for moderator re-appointment after suspension?

What is the process for a moderator to request reinstatement or appeal a removal?