Provides the trigonometric functions sin, cos and tan, for use in the graphics and graphicx packages.

Before any trigonometric value is used, it must be pre-calculated,
so a usage sequence might be
`\CalculateSin{22.5} ... \UseSin{22.5}`; the argument may
also be a LaTeX count, as in `\UseTan{\value{mycounter}}`,
or a count register, as in `\CalculateCos{\count@}`.

The author is David Carlisle.

License: **lppl**
Version: **1.09**
Catalogued: **2009-10-10**