{* *! version 1.0.1  15mar2007}{...}
    {cmd:tan(}{it:x}{cmd:)}
{p2colset 8 22 26 2}{...}
{p2col: Domain:}-1e+18 to 1e+18{p_end}
{p2col: Range:}-1e+17 to 1e+17 and {it:missing}{p_end}
{p2col: Description:}returns the tangent of {it:x}, where {it:x} is in
	radians.{p_end}
{p2colreset}{...}
