Auto-indexing utilities? Are there any utilities that aid indexing terms of LaTeX documents?  For example, I am looking for a utility that finds the most common words and phrases and asks me whether to include them in a LaTeX index.  thanks
Auto generate an Index Is there any way to auto-gererate an index for the makeidx package? I've written ~270 pages and didn't think of adding \index{} everywhere.  Do I really need to go over everything and add \index{}?
Connect Talend to Salesforce using OAuth JWT Flow I followed the steps exactly mentioned here  for connecting Talend to salesforce.  I have done the configuration in Talend and added the test(sandbox) URL in the advanced setting. I am facing an error while trying to establish the Oauth connection (JWT) between Talend ETL tool and salesforce: {'error':'invalid_grant','error_description':'invalid assertion'} Here is the screenshot of the configuration and error message:   Please help to resolve this issue. find an approximate solution, up to the order of epsilon The question is to find an approximate solution, up to the order of epsilon of following problem.  $$y'' + y+\epsilon y^3 = 0$$ $$y(0) = a$$ $$y'(0) = 0$$  I tried to solve the given problem using perturbation theory.  $$y(t) = y_0(t) + \epsilon y_1(t) + \epsilon^2 y_2(t) + \cdots$$ $$t = w(\epsilon)t = (1 + \epsilon w_1 + \epsilon^2 w_2 + \cdots )t$$  However, i failed to find an appropriate approximate solution... help me!! How can I contribute to Ubuntu? I would like to know what kinds of contributions someone can make to Ubuntu. Such as Programmer, User, Proofreader, etc. Systemd backed tmpfs | How to specify /tmp size manually I mount /tmp on tmpfs using:  sudo systemctl enable tmp.mount sudo systemctl start tmp.mount   But this way /tmp takes up all the free RAM:  $ df -h /tmp Filesystem      Size  Used Avail Use% Mounted on tmpfs           3.9G   12K  3.9G   1% /tmp $   How do I tell systemd tmp.mount to use only 1G? I know I can alternatively not use systemd and manually add an entry to /etc/fstab and specify the size there. But I don't want to do that. I want to use systemd backed tmpfs. This works:   This does not (blank image):   Notice the 1.1.1 -> 1.3.0 and SRS->CRS are the only changes.  Is this a problem with the service or is my second URL incorrect?  I've observed the same issue with other WMS services:  Works:   Does not work (blank image):   So I'm assuming it's an issue with my 1.3.0 URLs. Overheating results in system shutdown Can I change some but not all Apple keyboard function keys (dim vs F1, bright vs F2)? I want to override F1 and F2 behavior, since I have external display and Mac can't control display's brightness. The rest of the keys should retain their non Fx  I know about "Use all F1-F12 keys as standard function keys.", but I don't want to change all of the keys to be F when pressed, just some of them. (For me single press music and volume control is necessary.)  Is there a way to pick some of the function keys to default to numbered function instead of the "Apple" definitions system wide? Why I have this error when I try to install this old blog on my local webserver? I am pretty new to WP (I came from Joomla) and I am finding some difficulties trying to put on my local web server an old backup of a website (made using WP 3.5)  I have performed the following operation:  1) I have put the website backup into a directory named blog into my Apache www directory on my Ubuntu local system.  2) Then I have put the database backup on my MySql local server  3) Finally I have change the values in the wp-config.php file to use my local DB  The problem is that when I try to open the URL to see the website I see noting (a white screen)  Into the Apache log file (/var/log/apache2/error.log) I found the following errors messages:  [Fri Jan 10 22:04:50 2014] [notice] Apache/2.2.22 (Ubuntu) PHP/5.3.10-1ubuntu3.9 with Suhosin-Patch configured -- resuming normal operations [Fri Jan 10 22:05:08 2014] [error] [client 127.0.0.1] PHP Warning:  require_once(/var/www/blog/wp-load.php): failed to open stream: No such file or directory in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:05:08 2014] [error] [client 127.0.0.1] PHP Fatal error:  require_once(): Failed opening required '/var/www/blog/wp-load.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:38:37 2014] [error] [client 127.0.0.1] PHP Warning:  require_once(/var/www/blog/wp-load.php): failed to open stream: No such file or directory in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:38:37 2014] [error] [client 127.0.0.1] PHP Fatal error:  require_once(): Failed opening required '/var/www/blog/wp-load.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:38:38 2014] [error] [client 127.0.0.1] PHP Warning:  require_once(/var/www/blog/wp-load.php): failed to open stream: No such file or directory in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:38:38 2014] [error] [client 127.0.0.1] PHP Fatal error:  require_once(): Failed opening required '/var/www/blog/wp-load.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:38:39 2014] [error] [client 127.0.0.1] PHP Warning:  require_once(/var/www/blog/wp-load.php): failed to open stream: No such file or directory in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:38:39 2014] [error] [client 127.0.0.1] PHP Fatal error:  require_once(): Failed opening required '/var/www/blog/wp-load.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:38:40 2014] [error] [client 127.0.0.1] PHP Warning:  require_once(/var/www/blog/wp-load.php): failed to open stream: No such file or directory in /var/www/blog/wp-blog-header.php on line 12 [Fri Jan 10 22:38:40 2014] [error] [client 127.0.0.1] PHP Fatal error:  require_once(): Failed opening required '/var/www/blog/wp-load.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/blog/wp-blog-header.php on line 12   Why? what could be the problem? How can I try to solve it?  Tnx  Andrea How can I capture the movement of a bullet? Just beginning with photography.    Consider this image:     (This photo was taken by Harold "Doc" Edgerton in 1964 using his Rapatronic camera.)  I am looking for a  camera that can capture such an image. I am not looking for more fps. less fps is fine, but it must be able to capture such an instance.   What features should I look in such a camera?  How fast should be the shutter speed? What other things I should look for? Get the size of the screen, current web page and browser window Question I use pgfplots with the ultra thick option ans without explicitly giving the domain for the y-axis. It seems that in this case, some part of my graph is &quot;eaten&quot; by the margin: see the picture below to understand what I mean. Is there a way to avoid this? Code \documentclass{article} \usepackage{pgfplots} \begin{document}  \begin{tikzpicture}  \pgfplotsset{every axis/.append style={                     axis x line=middle,    % put the x axis in the middle                     axis y line=middle,    % put the y axis in the middle                     axis line style={-&gt;},  % arrows on the axis                     xlabel={$x$},          % default put x on x-axis                     ylabel={$y$},          % default put y on y-axis                     grid = major                     }}  \begin{axis}[xmin=-5,xmax=5] \addplot[orange,smooth, ultra thick] {sin(deg(x))} ;                  \end{axis} \end{tikzpicture}  \end{document} How do question bookmarks work? Limit of function of hyperbolic Get full name twice in Bibliography I use biblatex with style=authoryear and when there are two references of the same author in the bibliography there is just a dash. How can I get the full name in the second entry too? How can I mitigate edge halo when darkening skies in post-processing? Using LINQ to concatenate strings What is the most efficient way to write the old-school:  StringBuilder sb = new StringBuilder(); if (strings.Count &gt; 0) {     foreach (string s in strings)     {         sb.Append(s + ", ");     }     sb.Remove(sb.Length - 2, 2); } return sb.ToString();   ...in LINQ? Can a coin with an unknown bias be treated as fair? New "[tag:" syntax interferes with Markdown links Some questions about Hilbert matrix This Exercise $12$ page $27$ from Hoffman and Kunze's book Linear Algebra.     The result o Example $16$ suggests that perhaps the matrix      $$A = \begin{bmatrix} 1 &amp; \frac{1}{2} &amp; \ldots &amp; \frac{1}{n}\\  \frac{1}{2} &amp; \frac{1}{3} &amp; \ldots &amp; \frac{1}{n+1}\\ \vdots &amp; \vdots &amp;  &amp; \vdots \\ \frac{1}{n} &amp;\frac{1}{n+1} &amp;\ldots &amp;\frac{1}{2n-1} \end{bmatrix}$$      is invertible and $A^{-1}$ has integer entries. Can you prove that?   I will copy their words before that example:      Some people find it less awkward to carry along two sequences of   matrices, one describing the reduction of $A$ to the identity and the   other recording the effect of the same sequence of operations starting   from the identity.   In this , Adrián Barquero says:      If your linear algebra textbook is Kenneth Hoffmann and Ray Kunze's   Linear Algebra book then I was in the same situation you're right now   a few years ago, but I was adviced at the moment that this particular   exercise wasn't as easy as one might expect at first.      The matrix you have is called the Hilbert matrix and the question you   have was already asked a couple of times in math overflow  and   . They have excellent answers so I will just point you to them.   My question: Is it possible answer the question made by the authors without using high techniques?  I am not allowed to use determinants here.  PS: Those answers in MO don't answer the question above. I apologise if this question is unappropriated or if I was unable to understand their answers. bi-directional sync with rsync