Unable to correct problems, you have held broken packages. and apt-get update keeps downloads all list again
How to install software or upgrade from an old unsupported release?
Do objects rotate around the torque vector or its center? If a sphere has a torque vector coming out of it at point A, would the sphere rotate about its center or the axis of the torque vector? quotation mark (quotation sign) xelatex + polyglossia + csquotes the problem I have is the "?" that shows instead of appropriate quotation marks (signs) when citing/quoting text in foregin language. I have searched manuals for the packages such as polyglossia or csquotes.   Unfortunately I haven't found a command that would allow me to declare quotation marks (signs) for the languages I am intending to use in my doc.   In the plain text I could of course use the ,, or '' to mimic the behavior of enquote but the bibliographic entries ale also affected by this unpleasant phenomena :(  % !TEX TS-program = arara % !TEX encoding = UTF-8 Unicode  % arara: xelatex: { shell: true } % arara: biber % arara: xelatex: { shell: true }  \documentclass[12pt]{article}  \usepackage[no-math]{fontspec} \defaultfontfeatures{Ligatures=TeX} \newfontfamily\greekfont[Script=Greek,Scale=MatchUppercase]{Linux Libertine O} \newfontfamily\cyrillicfont[Script=Cyrillic,Scale=MatchUppercase]{Linux Libertine O}  \usepackage{polyglossia} \setdefaultlanguage{polish} \setotherlanguages{english,latin,greek,russian,german}  \usepackage[strict=false,autostyle=true,english=american,german=guillemets]{csquotes}  \PassOptionsToPackage{%         natbib=true,         style=authoryear-comp,         hyperref=true,         backend=biber,         maxbibnames=99,         firstinits=true,         uniquename=init,         maxcitenames=1,         citetracker=true,         parentracker=true,         backref=true,         backrefstyle=two,             }   {biblatex} \usepackage{biblatex}  \usepackage{filecontents} \begin{filecontents}{bibliography.bib} @article{Author2014,     author      = {Joe, Smith},     title       = {Publication title in polish language},     journal     = {Journal of Journals},     pages       = {1},     year        = {2014},     month       = {March}     } \end{filecontents}  \addbibresource{bibliography.bib}  \begin{document}      \noindent{}{\enquote{\languagename{} \today}}\\     \textenglish{\enquote{\languagename{} \today}}\\     \textgerman{\enquote{\languagename{} \today}}\\     \textlatin{\enquote{\languagename{} \today}}\\     \textgreek[variant=ancient]{\enquote{\languagename{} \today}}\\     \textrussian{\enquote{\languagename{} \today}}\\     \textpolish{\enquote{\languagename{} \today}}\\     \cite{Author2014}      \printbibliography  \end{document} Getting hyperref to work with \citeyear and \citeyearpar in biblatex Removing control chars (including console codes / colours) from script output I can use the "script" command to record an interactive session at the command line.  However, this includes all control characters and colour codes.  I can remove control characters (like backspace) with "col -b", but I can't find a simple way to remove the colour codes.  Note that I want to use the command line in the normal way, so don't want to disable colours there - I just want to remove them from the script output.  Also, I know can play around and try find a regexp to fix things up, but I am hoping there is a simpler (and more reliable - what if there's a code I don't know about when I develop the regexp?) solution.  To show the problem:   spl62 tmp: script Script started, file is typescript spl62 lepl: ls add-licence.sed  build-example.sh  commit-test         push-docs.sh add-licence.sh   build.sh          delete-licence.sed  setup.py asn              build-test.sh     delete-licence.sh   src build-doc.sh     clean             doc-src             test.ini spl62 lepl: exit Script done, file is typescript spl62 tmp: cat -v typescript Script started on Thu 09 Jun 2011 09:47:27 AM CLT spl62 lepl: ls^M ^[[0m^[[00madd-licence.sed^[[0m  ^[[00;32mbuild-example.sh^[[0m  ^[[00mcommit-test^[[0m         ^[[00;32mpush-docs.sh^[[0m^M ^[[00;32madd-licence.sh^[[0m   ^[[00;32mbuild.sh^[[0m          ^[[00mdelete-licence.sed^[[0m  ^[[00msetup.py^[[0m^M ^[[01;34masn^[[0m              ^[[00;32mbuild-test.sh^[[0m     ^[[00;32mdelete-licence.sh^[[0m   ^[[01;34msrc^[[0m^M ^[[00;32mbuild-doc.sh^[[0m     ^[[00;32mclean^[[0m             ^[[01;34mdoc-src^[[0m             ^[[00mtest.ini^[[0m^M spl62 lepl: exit^M  Script done on Thu 09 Jun 2011 09:47:29 AM CLT spl62 tmp: col -b &lt; typescript  Script started on Thu 09 Jun 2011 09:47:27 AM CLT spl62 lepl: ls 0m00madd-licence.sed0m  00;32mbuild-example.sh0m  00mcommit-test0m         00;32mpush-docs.sh0m 00;32madd-licence.sh0m   00;32mbuild.sh0m          00mdelete-licence.sed0m  00msetup.py0m 01;34masn0m              00;32mbuild-test.sh0m     00;32mdelete-licence.sh0m   01;34msrc0m 00;32mbuild-doc.sh0m     00;32mclean0m             01;34mdoc-src0m             00mtest.ini0m spl62 lepl: exit  Script done on Thu 09 Jun 2011 09:47:29 AM CLT Aliased edge around light source in cycles Often when a mesh light is visible in the camera, the edges are not anti-aliased.  No matter how many samples I do, the lamp border always looks jagged and pixelated.  Is this a rendering error? How can I get around this issue?    And zoomed in 4x: Why is a nonstop flight sometimes more expensive than multiple connections? Can I still use the older Airport Utility 5.5.3 if I install the 6.0 version of Airport Utility? Let $\left| {{a_{ii}}} \right| > \sum\limits_{i \ne j} {\left| {{a_{ij}}} \right|} $.Why does $A$ is nonsingular? . How to read and write into file using JavaScript? How to adjust the gap between figure and caption within the same subfloat My question is:  How to adjust the gap between figure and caption within the same subfloat  Not the gap between two subfloat.  For the following example:  \begin{figure}     \centering     \subfloat[A]{\includegraphics[ scale=0.5]{images/a.jpg}}     \vspace{-10pt}     \subfloat[B]{\includegraphics[scale=0.5]{images/b.jpg}}     \vspace{-10pt}     \caption{}\label{fig:online_test} \end{figure}   I got the following figure:    The sub-caption of (a) is too close to the sub-figure B. I hope the caption (a) to stay closer to sub-figure A. How can I adjust the space between the caption and figure within a subfloat?  Thank you all for helping me and I would prefer a solution for subfloat, instead of using other packages. But I would also appreciate a solution of using other packages.   I know my question looks similar to . But please make it clear. I'm asking for how to adjust the gap between figure and caption within a subfloat, not the gap between two subfloat. That is, the gap between the caption "a" and the figure "A"  Thank you. Word for phrases that are examples of what they describe What's the difference between \usepackage{ngerman} and \usepackage[ngerman]{babel} Is there something additional that \usepackage[ngerman]{babel} does that a simple \usepackage{ngerman} won't be able to do? How to debug an unmet dependencies problem? Determinant of a specially structured matrix ($a$'s on the diagonal, all other entries equal to $b$) I have the following $n\times n$ matrix:  $$A=\begin{bmatrix} a &amp; b &amp; \ldots &amp; b\\ b &amp; a &amp; \ldots &amp; b\\ \vdots &amp; \vdots &amp; \ddots &amp; \vdots\\ b &amp; b &amp; \ldots &amp; a\end{bmatrix}$$  where $0 &lt; b &lt; a$.  I am interested in the expression for the determinant $\det[A]$ in terms of $a$, $b$ and $n$.  This seems like a trivial problem, as the matrix $A$ has such a nice structure, but my linear algebra skills are pretty rusty and I can't figure it out.  Any help would be appreciated. Start Bounty has a different colour This may be me being silly, but has the start a bounty text colour changed?  I distinctly remember it being the same colour as the add comment text? Need a MP3 ID3 tagger, and cover fetcher I need to tag my MP3 library, and have tried kid3 (which was manual tagging), when I used Kubuntu 9.10 (I now use Ubuntu Meerkat) Here are the features I am hoping for:   A good and clean UI. Tagging should be automatic, like Winamp's autotag feature, which rocks, btw! It should also embed the cover-art in the mp3, not copy a jpeg file in the folder, because now-a-days all players support displaying cover art. But acceptable if not possible. Rename the files as per some regular expression like %TrackNo - %Artist - %Title.  Should be accurate, and more importantly smart. I want to start tagging at night, and hopefully my collection should be done by the morning, w/o it being stuck at a user prompt at 1%.   If one app cant do all, I am willing to use 3, wouldn't mind exposure to a few more apps ;)  I have used picard or someting, and I didnt like it quite a lot. But wouldn't mind using it, if there is no other alternative.   Thanks for your time! How to make all faces flip to the right/consistent direction? What's happening is that I have tried to flip the normals, inside and out, but there are always faces which have to be flipped!  Normals recalculated   Inside View    If I flip them again, all faces get flipped and end up horrible and, not working at all. So how can I make all of the faces flip to the right direction? Why do some people use $+\infty$ instead of $\infty$? Why do some people use $+\infty$ instead of $\infty$? Because we usually denote minus infinity as $-\infty$, I think it is sufficient to denote plus infinity as $\infty$. Are there any reasons for this notation? I saw that many people majoring analysis use like $\int_0^{+\infty}$ or $\sum_{j=1}^{+\infty}$ or $\bigcup_{j=1}^{+\infty}$ which is not related to the unsigned infinity. Why does Stack Overflow allow duplicate display names? What is the reasoning behind the design decision to allow users to create a display name which matches another existing users exactly?    This is opposed to the common practice of enforcing unique user names, and I'd really like to learn something. Is it possible to save frequently used expressions in QGIS? Is there any way to save frequently used expressions in the selection or field calculator dialogs? Obviously I can cut and paste them into a file where I might save them, but I mean within the context of QGIS like you can do in ArcMap.