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# AMS-LaTeX

### Prerequisites

• A working TeX system
TeX is not an AMS product. See the AMS TeX Resources page for sources.
• A current working LaTeX system, dated June 1995 or later
LaTeX is not an AMS product. See the LaTeX Project home page for information if you do not already have LaTeX.

Important note: If you are working on a system based on a TeX Live (or MiKTeX or MacTeX) distribution later than 2005, AMS-LaTeX should already be available, and you should not have to download or install it separately.

This distribution is in two parts:

These archives will unpack into an existing TEXMF structure, in most cases providing a ready-to-use installation.

### What is AMS-LaTeX?

The name "AMS-LaTeX" is used to mean "LaTeX with AMS extensions". The AMS-LaTeX extensions are part of the standard LaTeX distribution, and are also mirrored on CTAN.

This AMS-LaTeX-only distribution is divided into two parts:

• The amscls part contains AMS "document class" files (amsart, amsbook and amsproc.cls) and a theorem package (amsthm.sty) that can be used independently. These provide the setup necessary to give a LaTeX document the general structure and appearance of an AMS article or book.
• The amsmath part is an extension package for LaTeX that provides various features to facilitate writing math formulas and to improve the typographical quality of their output.

If you already have a TeX distribution from 2005 or later, AMS-LaTeX will be included, and you do not need to obtain it separately.

### Documentation for AMS-LaTeX version 2

Except for the Short Math Guide, the files listed below are included in the AMS-LaTeX distribution, and should be on your system, unless documentation files were excluded from the installation.

This material is best understood when the source and output are examined side by side.

• Short Math Guide for LaTeX
This guide is a concise summary of the essential features in LaTeX for writing math formulas, including features provided by the packages amssymb and amsmath. This is not a mere listing of everything available but a careful selection of the LaTeX commands that are especially recommended for authors' use. There is also some discussion of certain common uses and misuses of various commands that are better avoided for reasons of typographical quality or logical markup.
• Technical notes on the amsmath package:   source (technote.tex) and output (technote.pdf)
• Sample paper for the amsmath package:   source (testmath.tex) and output (testmath.pdf)
• Sample document illustrating use of the subequations environment and the effect of the fleqn option:   source (subeqn.tex) and output (subeqn.pdf)
• Test of standard and custom theorem styles with newtheorem and theoremstyle:   source (thmtest.tex) and output (thmtest.pdf)

#### Auxiliary Packages

• amsmidx.sty -- Package for use with document classes based on amsbook.cls to produce multiple indexes. Instructions are in the file amsmidx.pdf.
• amsbooka.sty -- Package for use with document classes based on amsbook.cls that contain chapters written by individual authors; this package will properly format tables of contents as well as the chapter headings. Instructions are in the AMS Author FAQ.

### Version 1.2

This version is provided, unsupported, for use only when exact output fidelity is needed for a pre-existing document that was written using version 1.2 of AMS-LaTeX.

Most AMS-LaTeX documents written with version 1.2 will produce satisfactory output when typeset with version 2.0. The most noticeable effect of upgrading will probably be corrections in the vertical spacing for some equations.