# Difference between revisions of "LaTeX"

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− | '''LaTeX''' is a typesetting language used primarily to type mathematical | + | '''LaTeX''' is a typesetting language used primarily to type mathematical expressions in an elegant fashion. For example, without LaTeX, <math>\frac{35}{137}</math> would have to be written as 35/137. To use LaTeX in the forums, enclose your LaTeX code with dollar signs: $your codes here$. To use LaTeX on AoPSWiki, enclose your code with math tags instead of dollar signs, like so: <nowiki><math>your codes here</math></nowiki> |

==Useful Codes== | ==Useful Codes== |

## Revision as of 18:48, 10 July 2006

**LaTeX** is a typesetting language used primarily to type mathematical expressions in an elegant fashion. For example, without LaTeX, would have to be written as 35/137. To use LaTeX in the forums, enclose your LaTeX code with dollar signs: $your codes here$. To use LaTeX on AoPSWiki, enclose your code with math tags instead of dollar signs, like so: <math>your codes here</math>

## Contents

## Useful Codes

**\boxed{Answer}** Produces a box around your Answer.

**\frac{a}{b}** Produces a common fraction with numerator *a* and denominator *b*.

**^\circ** Produces the degrees symbol.

**\text{Your Text Here}** Produces text within LaTeX.

**\sqrt{x}** Produces the square root of *x*.

**a\equiv b \bmod{c}** Produces a is equivalent to b, mod c.

**\binom{9}{3}** Produces 9 choose 3.

**x^{y}** Produces x to the power of y.

**x_{y}** Produces x with y in subscript.

Note that on AoPSWiki, many codes that work on the AoPS forums do not work. Also, a helpful tip is that if LaTeX fails to render within AoPSWiki, try adding the code \displaystyle to the beginning of the string of LaTeX. This often fixes minor rendering problems.

## Fonts

### Font families

- Roman (default): \textrm{...}
- Sans-serif: \textsf{...}
- Monospace (typewriter): \texttt{...}

### Font sizes

To activate a font size, write '{\tiny{This text is tiny}}', for example.

- \tiny (5 pt.)
- \scriptsize (7 pt.)
- \footnotesize (8 pt.)
- \small (9 pt.)
- \normalsize (10 pt.)
- \large (12 pt.)
- \Large (14 pt.)
- \LARGE (18 pt.)
- \huge (20 pt.)
- \Huge (24 pt.)

### Font styles

- Bold \textbf{...}
- Italics \textit{...}
- Slanted \textsl{...}
- Small capitals \textsc{...}
- Sans-serif \textsf{...}
- Monospace \texttt{...}
- Emphasis \emph{...}

## Tutorials & Tools

- AoPS LaTeX Guide
- Wikipedia Article
- This is a useful site that will change LaTeX input into a PNG image.

*This article is a tutorial about the AoPSWiki or AoPS Forum.*