TeX

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TeX

TeX is a typesetting system and programming language designed and written by Donald Knuth. Within the typesetting system, its name is formatted as TeX.

AMS-TeX

AMS-TeX was originally written by Michael Spivak, and was used by the American Mathematical Society (AMS) from 1983 to 1985.

LaTeX

LaTeX (formatted as LaTeX) is a document markup language and document preparation system for the TeX typesetting program.

AMS-LaTeX

AMS-LaTeX is a collection of LaTeX document classes and packages developed for the AMS. Its additions to LaTeX include the typesetting of multi-line and other mathematical statements, document classes, and fonts containing numerous mathematical symbols. It has largely superseded the plain TeX macro package AMS-TeX.

The following code of the LaTeX2ε 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 (which works in OEIS Wiki)

  \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

$\begin{array}{rl}y& =(x+1{)}^2\\ & =x^2+2x+1\end{array}$

AMS-LaTeX also includes many flexible commands for formatting and numbering lemmas, theorems, corollaries, etc. For example, one may use the environment theorem (note that <br> is the only HTML element allowed in LaTeX code)

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

to generate (note how the PNG images do not align properly in inline style, especially when there are subscripts or superscripts involved)

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

See also

• TeX
  • {{TeX}} — TeX graphic template
• LaTeX
  • {{LaTeX}} — LaTeX graphic template
• LaTeX2e
  • {{LaTeX2e}} — LaTeX2ε graphic template

External links

• CTAN—The Comprehensive TeX Archive Network
• TeX—Wikipedia.org.

• LaTeX—A document preparation system
• LaTeX—Wikipedia.org.

• AMS TeX Resources
• TeX FAQ on AMS packages
• TeX FAQ on AMS-TeX