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1500 questions
212
votes
6 answers

Embedding videos and animations

I'm aware that it's possible to embed some kinds of videos and animations in LaTeX files (using the beamer or prosper classes) but I couldn't locate good documentation on this. My web searches returned a list of scattered forum questions and…
Vipul
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211
votes
3 answers

How do I put big brackets under different parts of an equation to attach text labels?

How do I put big brackets under different parts of an equation so that I can write, e.g., text specific to these parts? For example: f = x^3 + 2 |___| |__| | | text 1 text 2
user576654
211
votes
3 answers

'Floor' and 'ceiling' functions

Is there a convenient way to typeset the floor or ceiling of a number, without needing to separately code the left and right parts? For example, is there some way to do $\ceil{x}$ instead of $\lceil x \rceil$?
jamaicanworm
  • 29,114
211
votes
11 answers

How to get DOI links in bibliography

I would like to add to all my bibliography items a DOI (Digital Object Identifier) link or a link to a download location. How can I do this with the natbib / BibTeX / hyperref combination? Currently I am using the plainnat style, but I'm willing to…
Peter Smit
  • 14,035
211
votes
3 answers

Hyperref warning - Token not allowed in a PDF string

When compiling a beamer presentation and using the following \author command \author{Name \\ \texttt{my.email@domain.com}} I get the following hyperref warning in my logfile Package hyperref Warning: Token not allowed in a PDF string…
210
votes
19 answers

How can we draw a Christmas tree with decorations, using TikZ?

I would like to use TikZ for drawing a christmas tree. Here's a start, I used the lindenmayersystems library for drawing a tree: \documentclass{article} \usepackage{tikz} \usetikzlibrary{lindenmayersystems} \begin{document} \begin{tikzpicture} \draw…
Stefan Kottwitz
  • 231,401
210
votes
7 answers

When should one use \verb and when \texttt

Sometimes people here use \verb!A SHORT COMMAND! and sometimes \textt{A SHORT COMMAND}. I'm unsure when to use which. Are there any guidelines or arguments for \verbatim vs. \texttt?
Martin
  • 4,565
210
votes
11 answers

Left and right subscript / superscript

I am trying to put two subscripts at the left and right of a character. For example, something like: _{t} p_{x} where p is in the middle. How do you do this?
NebulousReveal
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209
votes
6 answers

\mid, | (vertical bar), \vert, \lvert, \rvert, \divides

What's the difference between the different vertical bars? $S = \{\, x \mid x \not= 17 \,\}$ $a \vert b$ implies $a \leq b$ when $b \ne 0$ $a|b$ implies $a \leq b$ when $b \ne 0$ $\lvert x \rvert$ is always non-negative Are all of these uses…
Sophie Alpert
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209
votes
4 answers

fontenc vs inputenc

I just don't seem to get it. So I come from the german speaking part of Switzerland and naturally I need ä ü ö a lot when I write german texts. So in LaTeX I have the option to go via "a "u "o which isn't really comfortable, or I can use an…
Philipp
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208
votes
2 answers

Bibliographies from multiple .bib files

I would like to use multiple .bib files for my article, such as file1.bib, file2.bib. However, I would like my references not to be separated (such as "Primary sources", "Secondary sources", etc.). These bibliographies just need to be merged into…
Andrey
  • 2,081
207
votes
3 answers

No indent in the first paragraph in a section?

I am just curious that the following format looks good to you or not? The preamble I used is just \documentclass[12pt,a4paper]{article} \usepackage{amsmath} \usepackage{amsthm} \usepackage{amssymb} I don't feel it's so good because the first…
user565739
  • 5,482
207
votes
1 answer

How to properly write multiple authors in bibtex file?

I use Jabref to store all articles I need and bibtex4word add-on (in MS Word) to maintain the reference list. So, I would like to know how to properly fill the "author" field in Jabref with multiple authors to appear them correct in the reference…
jacksonslsmg4
207
votes
5 answers

Vertically center text on a page

How do I vertically center the text on a page?
Neil G
  • 17,947
206
votes
3 answers

What do newcommand, renewcommand, and providecommand do, and how do they differ?

What do newcommand, renewcommand, and providecommand do, and how do they differ? I think \newcommand overwrites any previously existing command, while \providecommand creates the command only if it does not already exists. Does \renewcommand only…
keflavich
  • 4,613