\ref{label>} yields the chapter
Why does an environment's label have to appear after the caption?
Can the Flash run faster than light? I'm a bit confused on how extra damage works for critical hits. Let's take the following example: A thief with sneak attack rolls a crit. I'm under the impression he rolls double his normal attack damage dice AND double his Sneak Attack damage dice. Is this accurate? Another example, I finished DM-ing my first campaign recently. The Giant Spider enemy monster has an melee attack that causes a constitution saving throw. If the player fails, the enemy rolls an additional 2D8 of damage. In this situation, if there was a critical hit, and the player failed their saving throw, would I also roll double dice on the additional damage? Or is that considered a separate attack? How to salt PBKDF2, when generating both an AES key and a HMAC key for Encrypt then MAC? When using Encrypt-then-MAC with AES and HMAC by password, and given 128 bits of payload with the ciphertext to store a random salt, which would be more secure:   Using PBKDF2 with then entire 128 bit random salt and generating 512 bits of derived data to split into a 256 bit AES Key and a 256 bit HMAC key.   or   Using PBKDF2 separately for each key using two 64 bits salts to generate a 256 bit AES Key and a 256 bit HMAC key.    or    Better option? chrome disable or change keyboard shortcut ctrl+shift+c developer tools console? How can I disable the Keyboard Shortcut ctrl+shift+c in Google Chrome to bring up the Developer Tools console?  I find myself trying to copy+paste content from the browser and mistakenly typing ctrl+shift+c when I really want to do ctrl+c instead.  How can I disable the current keyboard binding or change ctrl+shift+c to do the same as ctrl+c in Google Chrome? I'm studying machine learning and every book I open I bump into chi-squared distribution, gamma-function, t-distribution, Gaussian, etc.   Every book I have opened so far only defines what the distributions are: they don't explain or give the intuition on where the specific formulas for the functions come from.   For example, why is chi-squared distribution the way it is? What is the t-distribution? What is the intuition behind the distribution? Proofs? etc.   I would like to have a clear and fundamental understanding of the most commonly used distributions so that every time later on when I see them, I truly understand what is a t-distribution, what is a Gaussian distribution and most importantly why are they the way they are.   It would be nice if the books / tutorials  can explain the concepts to a layman so that in order to understand them you don't already need to understand them x) Many books are like this, they don't fit for beginners :( Downloading multiple files with youtube-dl I use youtube-dl to download files from YouTube. I have tried downloading multiple files, but it is not working out for me. I have to open multiple terminals and start afresh every time I want to download a video.   Can you help me to download multiple files with a single terminal window by just mentioning all the URLs at once? I use Ubuntu 12.04 64-bit. How to count the number of set bits in a 32-bit integer? We often get questions on bicycles.stackexchange about fitting wider or narrower tires to bicycles. We have a large number of these with answers suiting the specific bike or style of bicycle in question, but I have been unable to find one that provides a generic answer covering off all things that need to be considered. For most bicycles, the answer is the same regardless of the specific style and sizes of tires in question.   This is intended as a canonical question that we can point closed questions to. How to typeset asymmetrical confidence level limits / uncertainties? In Data Extension one field 'HTML' have Data that I have shown below, Now I have to Find the 'Href', and and at the last of URL append some text like '&amp;MC='. It may have Multiple 'Href'. Please help me on this.   &lt;table width="540" style="margin: 0px; padding: 0px;" bgcolor="#ffffff" border="0" cellspacing="0" cellpadding="0"&gt;  &lt;tbody&gt;   &lt;tr&gt;    &lt;td valign="top"&gt;    &lt;h5 style="margin: 0px; padding: 0px 0px 2px; line-height: normal; font-family: &amp;quot;Segoe UI&amp;quot;, &amp;quot;Lucida Grande&amp;quot;, Verdana, Arial, Helvetica, sans-serif; font-size: 16px; font-weight: normal;"&gt;    &lt;a style="text-decoration: none;" href="https://test.4.com/testRegistration/testLobbyServlet?target=reg20.jsp&amp;eventid=897605&amp;sessionid=1&amp;key=2F3D1EB963D9DB7738BF2877DFFDBA01&amp;partnerref=Social&amp;sourcepage=register&amp;loc=zOTlocz&amp;prod=zWAz&amp;tech=zsecz&amp;prog=zOTprogz&amp;type=zOTtypez&amp;media=zWCz&amp;country=zUSz" alias="Success with Enterprise Mobility: Making email and Office 365 secure on mobile devices"&gt;    Success with Enterprise Mobility: Making email and Office 365 secure on mobile devices     &lt;/a&gt;    &lt;/h5&gt;    &lt;p style="margin: 0px; padding: 0px; line-height: 20px; font-family: &amp;quot;Segoe UI&amp;quot;, &amp;quot;Lucida Grande&amp;quot;, Verdana, Arial, Helvetica, sans-serif; font-size: 12px; font-weight: normal;"&gt;    &lt;span style="color: rgb(103, 103, 103);"&gt;    &lt;em&gt;December 9, 2014, 10:30 A.M.&amp;ndash;11:30 A.M. Pacific Time&lt;/em&gt;&lt;br&gt;    An enterprise mobility strategy involves identity, management, and productivity. In this session featuring Brad Anderson, you will learn about the integration and the Office mobile apps while enabling secure mobile productivity.    &lt;/span&gt;    &lt;/p&gt;    &lt;/td&gt;   &lt;/tr&gt;   &lt;tr&gt;    &lt;td valign="top"&gt;&amp;nbsp;    &lt;/td&gt;   &lt;/tr&gt;   &lt;tr&gt;    &lt;td valign="top"&gt;    &lt;h5 style="margin: 0px; padding: 0px 0px 2px; line-height: normal; font-family: &amp;quot;Segoe UI&amp;quot;, &amp;quot;Lucida Grande&amp;quot;, Verdana, Arial, Helvetica, sans-serif; font-size: 16px; font-weight: normal;"&gt;    &lt;a style="text-decoration: none;" href="http://test.TTr.com/?Wt.mc_id=IG15W2NWTN&amp;loc=zOTlocz&amp;prod=zWAz&amp;prod=zWSz&amp;tech=zCLz&amp;prog=zOTprogz&amp;type=zEVz&amp;media=zOTmediaz&amp;country=zUSz" alias="Test: Everything about enterprise technology under one roof"&gt;    Test: Everything about enterprise technology under one roof    &lt;/a&gt;    &lt;/h5&gt;    &lt;p style="margin: 0px; padding: 0px; line-height: 20px; font-family: &amp;quot;Segoe UI&amp;quot;, &amp;quot;Lucida Grande&amp;quot;, Verdana, Arial, Helvetica, sans-serif; font-size: 12px; font-weight: normal;"&gt;    &lt;span style="color: rgb(103, 103, 103);"&gt;    &lt;em&gt;May 4&amp;ndash;8, 2015, Chicago, IL&lt;/em&gt;&lt;br&gt;    If you&amp;rsquo;re serious about technology, you don&amp;rsquo;t want to miss Test. This event will be the intersection of everything in enterprise technology. Get ahead in your job and your career.    &lt;/span&gt;    &lt;/p&gt;    &lt;/td&gt;   &lt;/tr&gt;  &lt;/tbody&gt; &lt;/table&gt; Nearby objects won't move independently? Here's a question I've been asked;  Given distinct primes $p,q,r$, show that any group $G$ of order $pqr$ is not simple.   So far, my idea has been to individually check each possible proper subgroup, since by Lagrange there are only $$\dbinom{3}{2} + \dbinom{3}{1} + 1$$ of them, and show that at least one of them other than the trivial group is normal. Surely there is a smarter way, since generalizing this approach wouldn't work so well if I wanted to show similar results for groups who's order is a product of $n$ distinct primes.  Is there some other approach? Thanks for any insights How "submitted", "to appear", "accepted" papers are evaluated in a CV? Assume a search committee is reading my CV and in the publication section they notice some of my papers are only submitted or claimed to appear in a journal (or accepted for publication in a journal). Sometimes the journal which has accepted the paper for publication lists the title of accepted articles before actually publishing them, but in the rest of cases there is no evidence to prove that the referee process of the paper is over and the journal has accepted the paper for publication. Also assume preprints of my papers are available in ArXiv. So, my questions are:   How a search committee interprets and evaluates those papers which are just submitted or are claimed to appear?  Does a search committee consider these types of publications less valuable than the published ones (assuming the same quality)?  Does a search committee refer to my preprints in ArXiv to evaluate my submitted or accepted papers? What makes a good entry level road bike? I've been riding a mountain bike for years, but I prefer to go longer distances on paved ground, so I think a road bike would be better. When I ask what is a good bike, I don't need brands or models - more like what components of the bike should I look for, and what should I avoid? Additionally, is it necessary to "go big or don't go at all" as far as spending - getting a real good quality road bike for $500 to a few thousand, or should I cheap out on a $100-200 road bike, as it is my first, then get a better one when I'm more experienced? Why Oracle discontinued Oracle Java (JDK) Installer PPA? Installing particular versions when repo has newer versions? Interactive pixel information of an image in Python? Today a student asked me $\int \ln (\sin x) \, dx.$ Calculate the integral $$\int \ln (\sin x) \, dx.$$ Proving $\sum\limits_{k=1}^{n}{\frac{1}{\sqrt{k}}\ge\sqrt{n}}$ with induction I am just starting out learning mathematical induction and I got this homework question to prove with induction but I am not managing.  $$\sum\limits_{k=1}^{n}{\frac{1}{\sqrt{k}}\ge\sqrt{n}}$$  Perhaps someone can help me out I don't understand how to move forward from here: $$\sum\limits_{k=1}^{n+1}{\frac{1}{\sqrt{k}}+\frac{1}{\sqrt{n+1}}\ge \sqrt{n+1}}$$ proof and explanation would greatly be appreciated :) Thanks :)  EDIT sorry meant GE not = fixed :) What is the purpose of delayed suspend (Ctrl-Y) in Bash?