293
votes
1answer
381k views

What commands are there for horizontal spacing?

I know that \: in LaTeX produces a space when rendered. Are there any alternatives, because my LaTeX renderer doesn't support \: (it renders it as text), and there is no help / FAQ that I can find.
258
votes
2answers
90k views

Why should I use \usepackage[T1]{fontenc}?

As a native English speaker, I've mostly been allowed the luxury of pretending that ASCII is enough, and have been able to treat font encodings as not my problem. I've seen lots of advice that I ought ...
193
votes
10answers
323k views

How can I get bold math symbols?

To make Latin-letter variables bold I can use e.g. \mathbf{a}, but while putting Greek letters or symbols such as \nabla inside \mathbf doesn't cause any errors or warnings, it also doesn't do ...
156
votes
4answers
75k views

LaTeX conditional expression

I would like to be able to set a flag at the beginning of the main flag (say output) that tells if I want to produce a paper document or an electronic document. Then I should check this flag to ...
81
votes
9answers
40k views

What graphics packages are there for creating graphics in LaTeX documents?

What packages do you use and recommend for creating graphics in your LaTeX documents? As this is a community wiki post, please add your package to the accepted answer (or add a comment, and ...
88
votes
4answers
23k views

What are the differences between $$, \[, align, equation and displaymath?

I once learnt, that it is uncool to use $$, but why is that? Why does \[ not act as a abbreviation to \begin{align}? I noticed, that there is a difference, since one cannot use & and \\ inside a ...
77
votes
1answer
6k views

How to split bibliography into “works cited” and “works not cited”?

I need two bib-like sections: a "References" giving works explicitly cited in my text, and a "Bibliography" (or "Further reading" if you prefer) giving everything from my bibfile that didn't already ...
112
votes
11answers
59k views

Forcing linebreaks in \url

I wish to typeset some relatively long URLs in a piece of text, and when I use \url{..}, the resulting text does not respect the margin boundaries that govern the main text body, instead going all the ...
82
votes
16answers
32k views

Prevent pdflatex from writing a bunch of files

If I create just a basic hello.tex file an compile it using pdflatex hello.tex The pdflatex program is creating a plethora of file which is a little annoying. Currently it writes all those files ...
65
votes
4answers
59k views

Two figures side by side

How can I put two figures side-by-side? Not two sub-figures, but two actual figures with separate "Fig.: bla bla" captions. A figure is supposed to spread over the entire text width, but I have two ...
488
votes
9answers
724k views

How does one insert a backslash or a tilde (~) into LaTeX?

How does one insert a "\" (backslash) into the text of a LaTeX document? And how does one insert a "~" (tilde)? (If you insert \~, it will give you a tilde as an accent over the following letter.) ...
66
votes
5answers
108k views

How to convert PDF to (La)TeX?

I know that hardly any information is passed to the PDF when a .tex file is compiled. But is there a tool that can convert a PDF document back to (La)TeX?
28
votes
3answers
1k views

What are the ways to position things absolutely on the page?

I know that there is tikz, but also eso-pic and textpos. I'd like to see a list of possible ways (not necessarily packages) for absolute positioning of things (which I believe amounts to "boxes") on ...
433
votes
8answers
90k views

How do I make my document look like it was written by a Cthulhu-worshipping madman?

I want to type up some spells from the RPG Call of Cthulhu and give them to my players. I could just type them up in Word or LaTeX, but that seems too...neat. I'd like to make these things look like ...
141
votes
3answers
189k views

What point (pt) font size are \Large etc.?

In the preamble I have: \documentclass[a4paper,11pt]{article} \usepackage{fontspec} \setmainfont{Arial} What can be inferred about the real font pt size for the following? \tiny, \scriptsize, ...
111
votes
12answers
64k views

Good way to make \textcircled numbers?

I'm trying to make some good-looking numbers in a circle, using the simple command: \textcircled{1} However, the circle is misaligned vertically with the number, and look a bit sloppy: Any ...
90
votes
2answers
9k views

Biblatex: submitting to a journal

Suppose that I moved from BibTeX to biblatex. With BibTeX I just copied the content of .bbl file into final version of my paper before submitting it to a journal. What should I do at same stage having ...
52
votes
5answers
36k views

How does one type Chinese in LaTeX?

Can anyone describe how one can type Chinese in LaTeX? When I compile this: \documentclass{article} \begin{document} 你好吗? \end{document} the resulting document shows nothing. For reference my IME ...
40
votes
4answers
10k views

Vertical and horizontal lines in pgf-tikz

It is easy to produce a path between two nodes consisting of a single horizontal and a single vertical line (from the manual): \begin{tikzpicture} \draw (0,0) node(a) [draw] {A} (1,1) node(b) ...
68
votes
7answers
195k views

Underscores in words (text)

How can I produce the text Word_one_two in LaTeX? I tried: Samp\_Dist\_Corr But, it doesn't quite look right. Also, I want it in the typewriter font, so actually, I'm doing: ...
33
votes
7answers
25k views

Why are some pages in my PDF coming out bold? [duplicate]

When I run my LaTeX document through pdflatex, some of the pages (the ones where figures appear) have all the text bolded. Why, and what can I do to make it stop?
27
votes
2answers
7k views

Difference between administrative and user mode of MiKTeX

For a lot of questions here on TeX.SE and on other fora regarding MiKTeX, it turns out that the underlying problem actually lies in the not understood distinction between administrative and user ...
105
votes
3answers
30k views

How to make the PDFs produced by `pdflatex` smaller?

I feel that the PDFs produced by pdflatex are too huge. So for example my 50 page book with no illustrations is 500KB. I feel it should be more like 50K or even less. The .tex files together are just ...
193
votes
5answers
47k views

What is the difference between \def and \newcommand?

Inspired by a question about \let and \def, I have some that essentially all boil down to asking What are the differences between \def and \newcommand? In particular, I wonder Is it possible to ...
36
votes
7answers
6k views

How can I invert a 'clip' selection within TikZ?

I wish to draw an arc for a reflex angle on the outside of a triangle with coordinates (A), (B) and (C). If I wanted to draw the arc inside the triangle I could use something like \begin{scope} ...
129
votes
10answers
36k views

Compile a LaTeX document into a PNG image that's as short as possible

I need to convert my LaTeX documents into PNG. The problem is, I also need the resulting image to be as short as possible (height-wise). I've tried latex followed by dvipng, but the result is always ...
80
votes
4answers
21k views

When not to use \ensuremath for math macro?

I have gotten into the habit of using \ensuremath around math components in every macro that I define, so that I can use the same macro inside and outside of math mode. But egreg's comments in ...
43
votes
5answers
11k views

Extract x, y coordinate of an arbitrary point in TikZ

I need a macro to extract the x and y coordinates from an arbitrary point, like (3,4), or like (A), or like ([xshift=-2pt] A.north west), where A is the name of a node. I've seen the solution ...
22
votes
2answers
2k views

Print programs with its proper syntax

I have defined my own language whose syntax is very close to the one of Pascal. I would like to type the following program for instance. Many people use the packages algorithmicx or algorithm2e to ...
2
votes
1answer
391 views

How to use pagenumbering in the document?

In my Master thesis, I would like to have the title page without any page number and an acknowledgments section and the table of contents with roman numbers. The rest of the document should be ...
335
votes
16answers
273k views

How to add a forced line break inside a table cell

I have some text in a table and I want to add a forced line break. I want to insert a forced line break without having to specify the column width, i.e. something like the following: ...
81
votes
6answers
6k views

Cunning (La)TeX tricks

Writing (La)TeX code sometimes requires a degree of guile. Here (in no particular order) are two of my favourite examples. Macros ending with spaces Pete asked how to see the implementation of ...
168
votes
10answers
216k views

Commenting out large sections

So to "comment out" a line, I need to insert a % at the beginning of the line (so that line will not be compiled). Is there way to comment out a large section without having to manually putting a % ...
79
votes
3answers
13k views

How to write (La)TeX (with parentheses) [or any other TeX-related logo]

I'm looking after a macro to write the (La)TeX logo (with parentheses), i.e. something similar to \TeX, \LaTeX, but where the output includes ()'s.
79
votes
1answer
50k views

Using BibTeX to make a list of references without having citations in the body of the document?

Is there any way to have BibTeX insert a bibliography without having citations in the body of the document itself? Maybe a way to hide the in-text citations, so that BibTeX still sees them and ...
48
votes
4answers
27k views

How to make \left, \right pairs of delimiter work over multiple lines?

I have a very long equation that must be separated into two lines, and it has several pairs of nesting \left \right delimiters. Unfortunately, it seems that they need to be on the same line in order ...
51
votes
1answer
3k views

What is the meaning of double pound symbol (number sign, hash character) ##1 in an argument?

I've seen sometimes that people use a double pound sign (##) when defining/using arguments. What is the difference between the normal argument, #1, and the double sign one, ##1? Are there any ...
64
votes
3answers
35k views

Cross-referencing between different files

I want to cross-reference between different .tex files, just because I want to put every chapters separately. Let's say in file chapterI.tex I have \label{a} and I want to access this in file ...
55
votes
7answers
28k views

TikZ: How to draw an arrow in the middle of the line?

Like this: .------<------. | | v ^ | | '------>------' I am currently using \begin{scope}[very thick,->] \draw (-4,1)--(-4,0)--(0.1,0); \draw ...
19
votes
2answers
12k views

PSTricks error “Undefined control sequence <recently read> \c@lor@to@ps”

I have a problem with this file tex: \begin{document} \begin{figure} \begin{center} \begin{pspicture}(0,0)(1,3.8) \psline{-<}(0,0)(0,.2) \psline{-}(0,.2)(0,.4) \psline{*->}(0,.4)(0,.9) ...
296
votes
18answers
157k views

How to include SVG diagrams in LaTeX?

I'm making all my diagrams in SVG format using Inkscape and then I export them to some other format (e.g. PDF, EPS or PNG). I wrote a short script that does this for me automatically, but I'd like to ...
89
votes
1answer
7k views

How to include a picture over two pages, left part on left side, right on right (for books)?

When writing a long book (from 300 to over a 1000 pages), there is often need to include large pictures and one wishes to have them displayed over two pages, left half on the left page, right half on ...
39
votes
2answers
6k views

How to define a figure size so that it consumes the rest of a page?

Sometimes I don't need to have a specific picture size, but for layout reasons I would like to scale the image so that the rest of the page is filled. How can I achieve that?
115
votes
7answers
41k views

Style/class tutorials

What are some good tutorials on writing custom styles (classes) that clearly explain commands used and some of the features that TeX has to offer in the way of styles?
147
votes
4answers
251k views

Why do the less than symbol (<) and the greater than symbol (>) appear wrong as upside down exclamation (¡) or question mark (¿)?

When typing < or > in LaTeX and compiling with pdflatex, the less than and greater than symbols appear at upside down exclamation points. I'm not in math mode.
114
votes
5answers
247k views

How can I split an equation over two lines

I am having the following equation: \begin{equation} Q(\lambda,\hat{\lambda}) = -\frac{1}{2} P(O \mid \lambda ) \sum_s \sum_m \sum_t \gamma_m^{(s)} (t) \left( n \log(2 \pi ) + \log \left| C_m^{(s)} ...
88
votes
5answers
12k views

Different command definitions with and without optional argument

I want to define a command that expands to two completely different things depending on whether I supply, or not, an optional argument. For example, \mycmd{normal} -> something(normal) ...
41
votes
2answers
6k views

Axis break in pgfplots

Is there an easy way to 'break' the axis in a pgfplots environment? What I'm talking about is something like this Any minimal plot will do as an example...for example \documentclass{minimal} ...
56
votes
3answers
11k views

Unbreakable block

I want to do something like the following in TeX: \begin{nobreak} Text here will not split over pages, it will remain as one continuous chunk. If there isn't enough room for it on the current page ...
23
votes
3answers
9k views

\includegraphics PDF, color problem

I'm using pdflatex, and use \includegraphics to include content of figures from PDF. PDF are exported from InkScape. \begin{figure} [!h] \centering \includegraphics[height=3cm]{fig/SUSAN.pdf} ...

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