# LaTeX tips: Displayed Math

http://www.math.uiuc.edu/~hildebr/tex/displays.html

Note: Most of the tips below require the amslatex macros. These are automatically loaded if you use the “amsart” documentclass, but if you use other documentclasses, such as “article”, put the following in the preamble, after “\documentclass{…}”: ” \usepackage{amsmath, amsthm, amssymb} “. For more about the amslatex macros, and as a general reference for the tips below, see Gratzer’s “Math into LaTeX”.

## Single line displays

• The double dollar symbol (