Sorry if this is very basic but I really cannot figure out why I am getting this error. I checked all my commands and they seem correct. I attached my attempt along with what I am supposed to be typesetting.Thanks!
90707
I have the following line: $0 \leqslant b \leqslant 1$  I want to display 0 &lt;= b &lt;= 1, but I get Undefined control sequence  thanks
1224
Im having this weird error that says:  Underfined Control Sequence. 1.60 \@writefi   I can press [s] on the command line and the message is ignored, and the code still runs ...  What can be causing this error?
4554
How do I post text so that it is formatted as code?  What do I need to do so that my code shows up properly &mdash; not escaped or removed &mdash; when posted? And how to get the correct syntax highlighting?     For more information, see "" in the .
118363
The terminal is not combing Unicode characters correctly. How do I solve this?
118033
Please look at the image. The right column's text jumbles with some comment text when the comment contains a large amount of white-space inside an inline code block. I guess that's not the design may be the comments should be a little bit more restricted from expanding? What do you think?    Now even kinda worse:
23889
im currently writing my bachelors thesis and while inserting some cites and adding something to my bib file the above mentioned error occured. i tried to "fix" it by removing all the steps prior to the occuring error but it still remains and i just cant find any solution. since im a total newbie in latex, i would be grateful for any quick help! i found something that should remove this error but it doesnt:  \DeclareUnicodeCharacter{200}{„ “}   which i insert directly after   \usepackage[utf8]{inputenc}   but that still doesnt solve it  thx in advance guys!
21968
I am getting this error in Ubuntu 12.04 , while doing the below operation.     frank@august:~$ sudo apt-get install ttf-mscorefonts-installer [sudo] password for frank:  E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct    the problem.  frank@august:~$ sudo dpkg --configure -a dpkg: error: parsing file '/var/lib/dpkg/updates/0045' near line 0:  newline in field name `#padding' frank@august:~$    &amp;  frank@august:~$ head /var/lib/dpkg/updates/0045 #padding #padding #padding #padding  frank@august:~$    I can't see where is the error , help me to solve this. Thank you.
108175
I'm trying to typeset an article.  In the preamble, I defined these two things:  \newcommand{\leftexp}[2]{{\vphantom{#2}}^{#1}{#2}}  \newcommand{\hr}{\leftexp{*}{\mathbb{R}}}   However, when I try to use $\hr$ in a section, as in:  \section{Constructing $\hr$}   I get an error:  Incomplete `\iffalse`; all text was ignored after line 1.   Any idea what could be causing this? Everything works just fine if I don't have the $\hr$ in the section (e.g. It typesets just fine if I have \section{Constructing $\mathbb{R}$}, say).
62174
The code for reference is this  @article{matcontcl,  title= {MATCONT and CL MATCONT},  author = {A. Dhooge, W. Govaerts, Yu.A. Kuznetsov, W. Mestrom, A.M. Riet and  B.Sautois},  year = {2006},  journal = {Continuation toolboxes in matlab}, }   This is the error that follows  This is BibTeX, Version 0.99d (TeX Live 2015/W32TeX) The top-level auxiliary file: PropuestaInvestigacion.aux The style file: abbrv.bst Database file #1: biblio.bib Too many commas in name 1 of "A. Dhooge, W. Govaerts, Yu.A. Kuznetsov, W. Mestrom, A.M. Riet and B.Sautois" for entry matcontcl while executing---line 1049 of file abbrv.bst Too many commas in name 1 of "A. Dhooge, W. Govaerts, Yu.A. Kuznetsov, W. Mestrom, A.M. Riet and B.Sautois" for entry matcontcl while executing---line 1049 of file abbrv.bst Too many commas in name 1 of "A. Dhooge, W. Govaerts, Yu.A. Kuznetsov, W. Mestrom, A.M. Riet and B.Sautois" for entry matcontcl while executing---line 1090 of file abbrv.bst Too many commas in name 1 of "A. Dhooge, W. Govaerts, Yu.A. Kuznetsov, W. Mestrom, A.M. Riet and B.Sautois" for entry matcontcl while executing---line 1090 of file abbrv.bst (There were 4 error messages)   How could I fix it?
19851
Basically, this is the issue:  $ echo Hello"$(printf '\n')"World HelloWorld   What did I overlook ?
35886
Code is supposed to be exact and "as-is". Sometimes, showing two spaces is important. In a comment, it is not possible to show code with  multiple   spaces. This became apparent in  (see comments).  EDIT: apparently this bug is larger then I thought: multiple    spaces   here are neither preserved in normal question text. Pity (though I couldn't find this reported before, I'd assume it is).  Workaround: use Alt+0160 (windows), or U+00A0 (Unicode NBSP), as I did in the example above.
100622
Could someone with experience in using these exercise typesetting packages please offer a quick compare and contrast of these packages to help me choose?  Packages under consideration are:         Having read briefly the documentation, they all seem to do the same thing generally, so could you please focus on the differences?  Some differences will not be obvious until I've learnt and used all the different packages but I want to better appreciate the differences now, a priori.
90370
What is wrong with this command? It says it has a problem with value separators, but i can't find it  /summon ArmorStand ~ ~ ~10 {ShowArms:1,NoBasePlate:1,Pose:{LeftArm:[0f,0f0f],RightArm:[0f,0f,0f],Body:[0f,0f,0f],LeftLeg:[0f,0f,0f],RightLeg:[0f,0f,0f],Head:[0f,0f,0f]},ArmorItems:{id:diamond_boots,ench:[{id:protection,lvl:1000},{id:blast_protection,lvl:1000},{id:thorns,lvl:1000},{id:unbreaking,lvl:1000}]},{id:diamond_leggings,ench:[{id:protection,lvl:1000},{id:blast_protection,lvl:1000}, {id:thorns,lvl:1000},{id:unbreaking,lvl:1000}]}, {id:diamond_chestplate,ench:[{id:protection,lvl:1000},{id:blast_protection,lvl:1000},{id:thorns,lvl:1000},{id:unbreaking,lvl:1000}]},{id:diamond_helmet,ench:[{id:protection,lvl:1000},{id:blast_protection,lvl:1000},{id:thorns,lvl:1000},{id:unbreaking,lvl:1000}]}}
18854
\documentclass{beamer}  %\usepackage{pstricks,auto-pst-pdf} % works \usepackage[pdf]{pstricks} \usepackage{pst-tree}  \begin{document} \begin{frame}{Test}     \begin{postscript}         $\pstree{\TR{S}}{}$     \end{postscript} \end{frame} \end{document}   I get the following error:  Error: /typecheck in --div-- Operand stack:    1   0   0.0   -0.00706883   a   65781.8 Execution stack:    %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostri ngval--   --nostringval--   false   1   %stopped_push   1926   1   3   %oparray_pop   1925   1   3   %oparray_pop   1909   1   3  %oparray_pop   1803   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   - -nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   --nostringval--   4   --nostringval--  %repeat_continue   --nostringval-- Dictionary stack:    --dict:1169/1684(ro)(G)--   --dict:0/20(G)--   --dict:123/200(L)--   --dict:100/300(L)-- Current allocation mode is local Current file position is 120580 MiKTeX GPL Ghostscript 9.05: Unrecoverable error, exit code 1   I use MiKTeX 2.9 and latest packages in Windows 7.
10680
I wanted to know if someone could point me to a reference where I could learn more about the \the command. Searching for "the" has been, without surprise, entirely unproductive. Even consulting "comprehensive" LaTeX command/macro lists has been unfruitful.   is the only treatment of the subject that I could find, but it was not very informative.
98731
I'm getting an error on latex and don't understand why ... The purpose was to create some tables on latex, but it is getting me some error which i don't really understand ... Any hint for me please ? Thank you :)  error:  ! LaTeX Error: Illegal character in array arg.  See the LaTeX manual or LaTeX Companion for explanation. Type  H &lt;return&gt;  for immediate help.  ...                                                l.5 \begin{tabular}{ | 1 | p{5cm} |}   code:  \documentclass[12pt,a4paper]{article} \usepackage[portuguese]{babel} \usepackage[applemac]{inputenc} \begin{document} \begin{tabular}{ | 1 | p{5cm} |} \hline Nome &amp; Manuel da Silva  \\ \line  Data de nascimento &amp; 1977 \\ \line  Data de falecimento &amp; 2011 \\ \line  \end{tabular} \begin{tabular}{ | 1 | p{5cm} |} \hline Nome &amp; Ana da Silva  \\ \line  Data de nascimento &amp; 2006 \\ \line  \end{tabular} \begin{tabular}{ | 1 | p{5cm} |} \hline Nome &amp; Maria Felisbina  \\ \line  Data de nascimento &amp; 1980 \\ \line  \end{tabular} \end{document}
121458
Since anything before and after the dot is arbitrary, why bother?  Related error:  RuntimeError: Error: Registering operator class: 'abcdefg', invalid bl_idname 'abcdefg', must contain 1 '.' character