{* *! version 1.0.1  15mar2007}{...}
    {cmd:digamma(}{it:x}{cmd:)}
{p2colset 8 22 26 2}{...}
{p2col: Domain:}-1e+15 to 8e+307{p_end}
{p2col: Range:}-8e+307 to 8e+307 and {it:missing}{p_end}
{p2col: Description:}returns the {cmd:digamma()} function.
	This is the derivative of {cmd:lngamma(}{it:x}{cmd:)}.

{p2col:}The {cmd:digamma(}{it:x}{cmd:)} function is sometimes called the
        psi function.
{p_end}
{p2colreset}{...}
