{* *! version 1.0.2  15mar2007}{...}
    {cmd:asin(}{it:x}{cmd:)}
{p2colset 8 22 26 2}{...}
{p2col: Domain:}-1 to 1{p_end}
{p2col: Range:}-pi/2 to pi/2{p_end}
{p2col: Description:}returns the radian value of the arcsine of {it:x}.{p_end}
{p2colreset}{...}
