Hypertext Help with LaTeX

There are four environments that put LaTeX in math mode: math, displaymath, eqnarray, and equation. The math environment is for formulas that appear right in the text. The displaymath and equation environments are for formulas that appear on their own line; they differ only insofar as the latter prints an equation number. LaTeX will not break lines in displaymath or equation environments, but can be told to do so with a \\ command in both the math environment and within an eqnarray.

The displaymath environment can be entered by

      math equation
Because displaymath may be used frequently to display relatively short equations, there are convenient alternative forms:
  \[ displayed math equation \]
and (still working, but deprecated in LaTeX2ε):
  $$ displayed math equation $$

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Last updated: Rolf Jansen & Brian Josephson, Sep 23 2011.