{* *! version 1.0.1  09feb2009}{...}
    {cmd:asinh(}{it:x}{cmd:)}
{p2colset 8 22 26 2}{...}
{p2col: Domain:}-8.9e+307 to 8.9e+307{p_end}
{p2col: Range:}-709.77 to 709.77{p_end}
{p2col: Description:}returns the inverse hyperbolic sine
	of {it:x}, {break}
        {cmd:asinh(}{it:x}{cmd:)} =
        ln{{it:x}+sqrt({it:x}*{it:x} + 1)}.{break}
	{p_end}
{p2colreset}{...}
