latex

Can TeX code be safely executed from untrusted sources?

MediaWiki allows one to embed TeX math code that is rendered into images and posted into the Wiki pages. Is this safe? If one allows untrusted users to input TeX programs to be executed by an interpreter running in a web server, does it open the server up to being hacked by using the TeX interpreter to read files from the server's disk...

Is there a way to prevent LaTeX from splitting long footnotes across multiple column/pages?

I am using LaTeX and in some cases have multiline footnotes. When I use a two-column format and especially when the reference to a footnote is low in the column, LaTeX will often split the footnote in half: it starts in the original column, but then continues under another column (sometimes in another page), which is very distracting. ...

Redefining Commands in a New Environment

Two questions: 1) Does LaTeX allow one to (re)define commands within a \newenvironment? I've tried using \renewcommand, \newcommand and \def in the before declaration but to no avail. 2)How would one redefine \item when creating a new list environment? I've created a new type of list environment from scratch using \newenvironment whil...

Latex: How to remove blank pages coming between two chapters IN Appendix?

HI, That s about it? ...

Redefining Commands with Parameters using \newenvironment

Pursuant to this question: Redefining Commands in a New Environment How does one redefine (or define using \def) a macro that uses parameters? I keep getting an illegal parameter definition in \foo error. Since I require custom delimiters, I can't use \newcommand or \renewcommand. A general form of my code looks like this: \new...

Is there a way to check if a label is already defined in LaTeX?

I edited the question after David Hanak's answer (thanks btw!). He helped with the syntax, but it appears that I wasn't using the right function to begin with. Basically what I want is to let the compiler ignore multiple definitions of a certain label and just use the first. In order to do that, I thought I'd just do something like this...

How can I have my abstract at the titlepage in LaTex?

My LaTex file: \maketitle \begin{abstract} For over a century, fingerprints have been an undisputed personal identifier. Recent court rulings have sparked interest in verifying unique... \end{abstract} I would like to a similar titlepage as here. My document class is article. This is the beginning of my file. ...

Can LaTeX be used for producing any documentation that accompanies software?

Although related to this question about LaTeX being used outside mathematics and academia, I'm specifically wondering if anyone uses or is familiar with anyone that uses LaTeX for generating any type of documentation relating to software. If so, could you say whether or not you like LaTeX and the purposes for which you use it? Thanks. ...

How can I start pagenumbers, where the first section occurs in LaTex?

My document class is article. This is the beginning of my file. This question is related to the post. ...

Why does my LaTeX subfigure not work with an a0poster?

Here's my problem. I have a bunch of figures already written in a LaTeX document, and I'd like to reuse them for a poster. The code for the figure looks like: \begin{figure}[htp] \begin{center} \subfigure[Figure A]{\label{fig:Sample-a}\includegraphics[scale=5]{Image1.png}} \subfigure[Figure B]{\label{fig:Sampple-b}\includ...

Long lines in LaTeX

Hello, I have some code I write inside the verbatim environment. Sometimes, the lines are too long and the generated pdf looks ugly - the text row passes over the right margin. What can I do to automatically break these long lines? Is there anything better than the verbatim env? Thanks, Lucian ...

Space after LaTeX commands

I have a definition \newcommand{\arnold}{Arnold Schwarzenegger} when I refer to it by \arnold is a it is rendered as Arnold Schwarzeneggeris a In order to have a space in front of "is" I would need to write \arnold\ is a Is there another and shorter way? ...

How can one keep a \section{} from being at the end of a page in LaTeX?

Given LaTeX likeso: \section{Heading} Here is some text after the heading. How could one prevent the Heading from showing up at the very bottom of the page? In other words, how could one prevent a page-break after Heading and before the following text? This seems to be happening in a document that I've got. If there's more informat...

How can one put a "[" after "\item" in LaTeX?

The following latex does not compile because of the "[" after the "\item". I presume it is because LaTeX expects a "]" as per the "\item[option]" syntax. However, I just want to insert the "[" character into the text as the first character of the enumerated item. \documentclass[oneside,12pt]{article} \begin{document} \begin{enumerate}...

LaTeX equivalent to Google Chart API

I'm currently looking at different solutions getting 2 dimensional mathematical formulas into webpages. I think that the wikipedia solution (generating png images from LaTeX sourcecode) is good enough until we get support for MathML in webbrowsers. I suddenly realized that it might be possible to create a Google Charts API equivalent fo...

Problem with float and pictures in LaTex

The picture is at the position of the header: http://dl.getdropbox.com/u/175564/%20latex1.png Code: \begin{figure} \subfloat[A gull]{\label{fig:gull}\includegraphics[width=0.15\textwidth]{p1.png}} \subfloat[A tiger]{\label{fig:tiger}\includegraphics[width=0.15\textwidth]{p2.png}} \caption{Pictures of animals} \label{f...

Totally Sweet Horizontal Rules in LaTeX

I have been trying to find a way to easily drop a nice horizontal rule into a LaTeX document. \hline just makes a line across the page. It would seem that some package must provide something that is maybe half a page wide, with little bedknobs on the ends or something to act as a nice section marker for paragraphs. Any ideas? Or am I...

How do I hide bullets in LaTeX lists?

Semantically, I want an itemized list, but visually I just want some space. How can I hide the bullets? ...

How do I enter a multi-line footnote in LaTeX?

My intuition was Lorem ipsum\footnote{long footnote that spans a whole bunch of lines. } But regardless of where I put the { and } in relation to the footnote text, I get the following error: Latex Error: ./mydoc.tex:142 Package inputenc Error: Unicode char \u8:― not set up for use with LaTeX. ...

How do I emit the text content of a reference in LaTeX?

I have a section: \section{Introduction} \label{sec:introduction} I'd like a link to the section where the link text is the name of the section. I can use hyperref: The \hyperrf[sec:introduction]{Introduction} introduces the paper. But that requires repeating the section title ("Introduction"). Is there a way to grab that? ref yi...