Do Trigger DMLs count on Batch Callouts?
Getting CalloutException when testing Batchable class with Callouts and HttpCalloutMock
I´d like to enable the ssh root access on Ubuntu 14.04. Editing the /etc/ssh_config (PermitRootLogin yes) didn't affect anything. Will reformatting my hard drive fix bad sectors on it? I'm calculating the covariance of a distribution in parallel and I need to combine the distributed results into on singular Gaussian. How do I combine the two?  Linearly interpolating between the two almost works, if they are similarly distributed and sized.   provides a forumla at the bottom for combination but it doesn't seem right; two identically distributed distributions should have the same covariance, but the formula at the bottom of the page doubles the covariance.  Is there a way to combine two matrices? How to align content of a div to the bottom $\mathbb{Q}(\sqrt{n}) \cong \mathbb{Q}(\sqrt{m})$ iff $n=m$ Page 105 of D. Burton's A First Course in Rings and Ideals reads     It is not difficult to show that if (I'll call them $n$ and $m$ instead of $n_1$ and $n_2$) $n$, $m$ are square free integers, then $\mathbb{Q}(\sqrt{n}) \cong \mathbb{Q}(\sqrt{m})$ if and only if $n=m$.   Well, it is getting difficult for me, any help or would be appreciated.    My progress so far: Suppose $\phi :\mathbb{Q}(\sqrt{n})\to\mathbb{Q}(\sqrt{m})$ is an isomorphism. Then $\phi(u)=u$ for every $u \in \mathbb{Q}$, so that $\phi(\sqrt{n})^2=\phi(n)=n$. If $\phi(\sqrt{n})=a+b\sqrt{m}$ for some $a,b\in\mathbb{Q}$, then $(a+b\sqrt{m})^2=a^2+b^2m + 2ab\sqrt{m}=n$ implies $$a^2+b^2m = n$$ and $$2ab=0.$$  Then $b=0$ cannot happen since that would imply that $\sqrt{n}\in\mathbb{Q}$, where $n$ is a square-free integer. Also $a=b=0$ cannot happen. Hence $a=0$ and we have $$b^2m=n.$$ If $\psi:\mathbb{Q}(\sqrt{n})\to\mathbb{Q}(\sqrt{m})$ were an isomorphism then there would exist some $s\in\mathbb{Q}$ such that $$s^2m=n,$$ then $s=b$ or $s=-b$. Therefore the only isomorphisms from $\mathbb{Q}(\sqrt{n})$ to $\mathbb{Q}(\sqrt{n})$ are $\phi(u+v\sqrt{n})=u+vs\sqrt{m}$ and $\psi(u+v\sqrt{n})=u-vs\sqrt{m}$.    I don't know if there's an easier way and I don't know if I'm in the correct way here. Thanks beforehand :) I am trying to prove that if I have $f:\mathbb{R} \to \mathbb{R}$ satisfying $\forall x,y\in\mathbb{R},f(x+y) = f(x) + f(y)$. Which is assumed continuous at $0$, that $f$ is continuous on $\mathbb{R}$  I am fairly sure it is, for that property seems to be a property of polynomials, and we know polynomials are continuous where defined(all reals)  Any ideas for rigor?  $|x-a| \lt \delta \implies |f(x+a)-f(x)-f(a)| \lt \epsilon$  No idea where to go from here, this is my first time doing $\epsilon-\delta$ stuff. How do you start Windows 10 in safe mode? How does a graduate program's admissions committee operate? How does a typical graduate program's admissions committee operate? (In the US --- I understand that in Europe admissions are often structured differently.)  My mental model at the moment is several professors sitting in a conference room with a stack of printed applications and a few piles: accept, maybe, and reject. Three or so professors will read an application and then make a decision. If the volume of applications is large enough, multiple meetings might be required. This is purely my imagination --- I don't know how accurate this model is.  Of course, I'm sure that how admissions are handled depends greatly on the school, program, and department. I'm interested in a few data points to get a rough idea of what the average is.  A few more specific related questions:   How much time does a typical committee spend on each application? I suspect there's a distribution. Obviously unqualified applicants will probably have their applications tossed into the reject pile pretty quickly. Qualified applicants' applications might receive more attention. Do admissions committees look online for more information about an applicant? I've read some professors (in CS --- not my field) will look at a student's research/project website, but I have no idea how common this is. How can I block app and game invitations once and for all in Facebook? I want to block app and game invitations once and for all in Facebook. How can I do it so they cannot disturb me anymore? Add existing ssh key for git Recursively delete empty directories in Windows I have a directory on my Windows 7 machine that has hundreds if not thousands of sub-directories.  Some of them have files, some do not.  I want to delete all the empty directories.  Looking at the del and rmdir DOS command, it does not look like you can recursively do this without deleting all the files.  Is there a way to do this from the command line? I have some HTML menus, which I show completely when a user clicks on the head of these menus. I would like to hide these elements when the user clicks outside the menus' area.  Is something like this possible with jQuery?  $("#menuscontainer").clickOutsideThisElement(function() {     // Hide the menus }); Can I travel to the UK on different dates from those on my entry clearance? I have a "Standard Visitor Entry Clearance" for the UK and will be traveling there from Saudi Arabia.    Is it necessary to travel on the same date I provided on my application?  Will the Immigration Officer check?  Will it make problems if I travel on a different date? In many experiments in quantum mechanics, a single photon is sent to a mirror which it passes through or bounces off with 50% probability, then the same for some more similar mirrors, and at the end we get interference between the various paths. This is fairly easy to observe in the laboratory.  The interference means there is no which-path information stored anywhere in the mirrors. The mirrors are made of 10^20-something atoms, they aren't necessarily ultra-pure crystals, and they're at room temperature. Nonetheless, they act on the photons as very simple unitary operators. Why is it that the mirrors retain no or very little trace of the photon's path, so that very little decoherence occurs?  In general, how do I look at a physical situation and predict when there will be enough noisy interaction with the environment for a quantum state to decohere? Proof a $2^n$ by $2^n$ board can be filled using L shaped trominoes and 1 monomino A weighted version of random.choice I need to group 400 points in 10 groups with 40 points each. The goal is to get the 40 points geographicly together like this:        Any idea how to do this with QGIS? Excessive fields in biblatex could not be removed if using \fullcite Combination of biblatex-chicago and Zotero produces many excessive fileds in the bibliography. This problem could be solved by adding to the preambule caveats like this:  \AtEveryBibitem{% \ifentrytype{online} {} {\clearfield{urlyear}\clearfield{urlmonth}\clearfield{urlday}}}   (Described in detail in the answer to my previous question: .)    This solution worked well for me, but now I have to produce a syllabus using \fullcite command. Unfortunately, this solution does not solve the problem for full bibliographic entries outside of the bibliography itself.  Here is the code with bibliography inside (to get the author's first and last name in the right order I use the following solution: ):    \begin{filecontents*}{database.bib}     @book{dalton_apartisan_2012,         title = {The Apartisan American: Dealignment and Changing Electoral Politics},         isbn = {9781452216942},         url = {http://books.google.com/books?id=eYkczUyX5wMC},         shorttitle = {The Apartisan American},         pagetotal = {241},         publisher = {{CQ} Press},         author = {Dalton, Russell J.},         urldate = {2014-04-03},         date = {2012-02-22},         langid = {english},         keywords = {Political Science / Political Process / Elections, Political Science / Public Policy / General}     } \end{filecontents*} \documentclass[11pt]{article} \usepackage[hmargin=3cm,vmargin=3cm]{geometry} \usepackage[onehalfspacing]{setspace} \usepackage{amssymb,amsmath,amsthm} \usepackage{booktabs,graphicx} \usepackage{paralist} \usepackage{cancel,soul} \usepackage{enumitem} \usepackage[authordate,backend=biber,bibencoding=utf8,bookpages=false,doi=only,isbn=false,footmarkoff]{biblatex-chicago} \usepackage[colorlinks, pdfstartview={XYZ null null 1.25},bookmarksopen=true,bookmarksopenlevel=\maxdimen,citecolor={blue},urlcolor={blue}]{hyperref} \addbibresource{database.bib} \DeclareCiteCommand{\fullcite} {\usebibmacro{prenote}} {\usedriver     {}     {\thefield{entrytype}}} {\multicitedelim} {\usebibmacro{postnote}} \AtEveryBibitem{%     \ifthenelse{\ifentrytype{article}\OR\ifentrytype{book}\OR\ifentrytype{collection}\OR\ifentrytype{incollection}\OR\ifentrytype{mvbook}\OR\ifentrytype{mvcollection}\OR\ifentrytype{mvincollection}}     {\clearfield{month}\clearfield{url}\clearfield{doi}\clearfield{urlyear}\clearfield{urlmonth}\clearfield{urlday}}}   \begin{document} \begin{center} {\huge Partisanship in Old, New and Non-Democracies}\\ \end{center}  \vspace{30pt} \noindent\textbf{Instructor: }  \hfill \textbf{Time and Location:} TBA\\ \textbf{Contact:}  \hfill \hfil \textbf{Office Hours:} TBA\\  \vspace{-20pt}    \subsection*{Partisanship in the United States}   \begin{enumerate}     \item \parencite{dalton_apartisan_2012}     \item \fullcite{dalton_apartisan_2012} \end{enumerate}  \printbibliography[heading=bibintoc]  \end{document}    Here is the output. Note the excessive fileds in the in-text full citation (they are absent in the References):    Any help, especially simple acessible solutions would be greatlly apreciated. I would like to open 4 Notepad++ windows at once, in the same pannel. Currently, I am only able to split it into two, and would like to know if there is a plugin that enables 4 views at at same time, or 3.   thanks Well, may be this is not really useful, but I've thought if it was possible to put all the document in one long page. I mean, if your document is going to be read in a computer, mix all the pages in a continuous page. If your document has 90 pages (A4), where each one is 21cm by 29.7cm the continuous document should be (more or less) one page which is 21cm by 90 · 29.7 = 2673cm. Is this possible? EDIT: Some things I would like to achieve:  The \newpage, \chapter{}, \part{}, etc. shouldn't go to a new page, they should only add more vertical space. The package pdfpages should add the pages continuously with almost no space between them. The titlepage, in this case, has a different color, so it could go alone in a basic A4 page (just to make things easier).  Question Is this possible?