Allow user to use sudo to execute anything, only one executable as nopassword
How to run a specific program as root without a password prompt?
Which airlines allow in-cabin pets on transatlantic flights? Moment of inertia: why $\mathrm{dI}=r^2\mathrm{dm}$ instead of $\mathrm{dI}=m\mathrm{dr^2}$? Can I use my laptop as a second monitor? Is it possible to make my laptop's screen act as a second monitor for my desktop computer? What is the name of a squircle with three, five, six or more corners? I know that the second shape is a squircle, but what are the other shapes called? Is there an actual name for them?    The shapes do not simply have rounded corners, but the sides have a "circularity". Here is a triangle with rounded corners next to the shape that I do not know the name of:    "Trircle", "Triarcle", and "Pentircle" do not seem to be used for them, at least Google's image search does not provide any results. How can I use a variable in the replacement side of the Perl substitution operator? Dynamic date range query I'm trying to create two cells that will update my query: A >= date"A1" and A &lt;= date "B1".  My goal is to create a search page for the data, where the end user could insert a date or the =today() function and it would update the query. I am currently getting a formula parse error from:  =QUERY(Data!6:1397,"SELECT A,B,C,D,E,F,G,H,I,J,K,L WHERE A &gt;= date"A1"and  A &lt;= date"B1"") We know (from the accidents that happened between 1999-2005) that      The Sith rely on their passion for their strength. They think inward, only about themselves.   and we also know that     Always two there are, no more, no less. A master and an apprentice.   And from the EU, we know that each Sith apprentice will (try to) kill and replace their master at some point, in order to become the one who bundles the entirety of the Sith power (so to say).    Q1: Given these points, why do Sith bother to take up apprentices at all? It doesn't make sense to pass on their knowledge of the dark side, because they only care about themselves, and it would also contradict this philosophy to teach competition that will endanger their power and ultimately their life.    Q2: As a special case of this question in The Empire Strikes Back, Vader tries to turn Luke by saying     Luke, you can destroy the Emperor. He has foreseen this. It is your destiny. Join me, and together we can rule the galaxy as father and son.   (emphasis by me)  Now, the same question rises: If the Emperor has foreseen that Luke can destroy him, why would he want Luke to become a Sith? Trigger a button click with JavaScript on the Enter key in a text box I have one text input and one button (see below). How can I use JavaScript to trigger the button's click event when the Enter key is pressed inside the text box?  There is already a different submit button on my current page, so I can't simply make the button a submit button. And, I only want the Enter key to click this specific button if it is pressed from within this one text box, nothing else.  &lt;input type="text" id="txtSearch" /&gt; &lt;input type="button" id="btnSearch" value="Search" onclick="doSomething();" /&gt; Encountering a FileSystemRights value that isn't defined in enumeration Configure mouse speed (not pointer acceleration!) Is there way to increase the mouse speed in KDE4? I don't want any pointer acceleration, it's just the mouse speed that I want to change.  Edit: Unfortunately, editing the xorg.conf is not an option for me, because I want the users to be able to configure the mouse speed themselves and it is company policy do deny users permission to change the xorg.conf. How do I handle null or optional DLL struct parameters Can someone identify this book, where children are bred for specific jobs? Things I remember about this book:   Every child was selected for a certain job/career; If twins were born, one was always killed; Seeing colors for the first time (describing the color of an apple); Seeing war and death and poverty.   Does anyone have any idea what this book might be? I have forgotten the password or username for my Google account, or I'm unable to access my account for other reasons.  How can I recover my account?  (This Q&amp;A is meant as a general description for all Google and Gmail username/password questions. See: ) Let's say we have $x^2=25$ So we have two real roots ie $+5$ and $-5$.  But if we were to differentiate on both sides with respect to $x$ we'll have the equation $2x=0$ which gives us the only root as $x=0$.  So does differentiating on both sides of an equation alter it? If it does, then how do we conveniently do it in Integration by substitutions? If not then what exactly is going on here ? Denoting the end of example/remark What is the etiquette to denote the end of an example or remark? For proofs, it's the QED symbol (white box). I know it's not necessary for everyone, but I would like to use it to break up the text a little. What should I use? A circle or filled box or what? Card game probability 3 players I don’t know how to handle this 3 players case, may anyone give a hand? Thanks!     When playing card game, there are 3 players playing 32 cards, each   receive 10 cards, 2 remind on the table. Overall are 4 aces and 4   kings in the game. How likely is P (E | D)? D = "The table remains 2   aces" E = "I (at least) get one king".   I guess I should have steps as follows.   P(E) = P(1King)+P(2K)+P(3K)+P(4K) P(D) = (4/32) * (4/32) = 1/256 P (E | D) = P(E) + P(D)   Equations may be used:  Counting combinations      The number of combinations of n objects taken r at a time is     nCr = n(n - 1)(n - 2) . . . (n - r + 1)/r! = n! / r!(n - r)!                 Number of favorable outcomes P(I) =     Total number of possible outcome How to align multiple subfigures in a grid? I have three images and I want to align them in the way that one image is above the other two. Here's an example:    How can I achieve this? For my other figures I use the subcaption package, but I am not able to align the pictures that way with it.    Thanks for all your replys! The answer that is working for me is the one supposed by karlkoeller:  \documentclass{article} \usepackage{graphicx} \usepackage{subcaption}  \begin{document}  \begin{figure} \centering \begin{subfigure}[b]{.45\linewidth} \includegraphics[width=\linewidth]{example-image-a} \caption{A mouse}\label{fig:mouse} \end{subfigure}  \begin{subfigure}[b]{.45\linewidth} \includegraphics[width=\linewidth]{example-image-b} \caption{A gull}\label{fig:gull} \end{subfigure} \begin{subfigure}[b]{.45\linewidth} \includegraphics[width=\linewidth]{example-image-c} \caption{A tiger}\label{fig:tiger} \end{subfigure} \caption{Picture of animals} \label{fig:animals} \end{figure}  \end{document} How to add a vertical line to a plot Whenever I access Stack Exchange the tab appears busy This question has an inverse:     What would be the most efficient way to translate a combination of $k$-tuple into its positions within the $\left(\!\!\binom{n}{k}\!\!\right)$ combinations? I need this to be fast for combinations of $\left(\!\!\binom{70}{7}\!\!\right)$ order of magnitude - very large, but not exceeding 2 billion (fits into int32 maximum value).  Below is an example of $\left(\!\!\binom{6}{3}\!\!\right)$, where the aim is to quickly translate (a, d, f) tuple to value 9, while in the real problem $k$ ranges between 5 and 8.  $$\begin{array} {cccccc|c} a&amp;b&amp;c&amp;d&amp;e&amp;f&amp;^{combination}/_{sort\_order}&amp; \\\hline x&amp;x&amp;x&amp; &amp; &amp; &amp;1\\ x&amp;x&amp; &amp;x&amp; &amp; &amp;2\\ x&amp;x&amp; &amp; &amp;x&amp; &amp;3\\ x&amp;x&amp; &amp; &amp; &amp;x&amp;4\\ x&amp; &amp;x&amp;x&amp; &amp; &amp;5\\ x&amp; &amp;x&amp; &amp;x&amp; &amp;6\\ x&amp; &amp;x&amp; &amp; &amp;x&amp;7\\ x&amp; &amp; &amp;x&amp;x&amp; &amp;8\\ x&amp; &amp; &amp;x&amp; &amp;x&amp;9\\ x&amp; &amp; &amp; &amp;x&amp;x&amp;10\\ .&amp;.&amp;.&amp;.&amp;.&amp;.&amp;.\\  &amp; &amp; &amp;x&amp;x&amp;x&amp;20\\ \end{array}$$  I know that I could pre-calculate all the combinations and reverse the lookup dictionary. However, such dictionary would not be efficient in terms of memory usage. Therefore I am looking for either calculation-based approach, or a more efficient data structure to perform this mapping.