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# LaTeX

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 Title: LaTeX Author: World Heritage Encyclopedia Language: English Subject: Collection: Publisher: World Heritage Encyclopedia Publication Date:

### LaTeX

AMS-LaTeX is a collection of LaTeX document classes and packages developed for the American Mathematical Society (AMS). Its additions to LaTeX include the typesetting of multi-line and other mathematical statements, document classes, and fonts containing numerous mathematical symbols.[1]

It has largely superseded the plain TeX macro package AMS-TeX. AMS-TeX was originally written by Michael Spivak, and was used by the AMS from 1983 to 1985.

The following code of the LaTeX2e produces the AMS-LaTeX logo ():

 %%% -- AMS-LaTeX_logo.tex -------
\documentclass{article}
\usepackage{amsmath}

\begin{document}
\AmS-\LaTeX
\end{document}


The package has a suite of facilities to format multi-line equations. For example, the following code,

  \begin{align}
y &= (x+1)^2 \\
&= x^2+2x+1
\end{align}


causes the equals signs in the two lines to be aligned with one another, like this:

\begin{align} y &= (x+1)^2 \\ &= x^2+2x+1 \end{align}

AMS-LaTeX also includes many flexible commands for formatting and numbering theorems, lemmas, etc. For example, one may use the environment theorem

  \begin{theorem}[Pythagoras] Suppose $a\leq b\leq c$ are the side-lengths of a right triangle.\\  Then $a^2+b^2=c^2$.\end{theorem}
\begin{proof}. . . \end{proof}


to generate

Theorem (Pythagoras) Suppose a\leq b\leq c are the side-lengths of a right triangle.
Then a^2+b^2=c^2.
Proof. . . □

## References

1. ^ George Gratzer (1996). Math into LaTeX.
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