{* *! version 1.0.2  15mar2007}{...}
    {cmd:comb(}{it:n}{cmd:,}{it:k}{cmd:)}
{p2colset 8 22 26 2}{...}
{p2col: Domain {it:n}:}integers 1 to 1e+305{p_end}
{p2col: Domain {it:k}:}integers 0 to {it:n}{p_end}
{p2col: Range:}0 to 8e+307 and {it:missing}{p_end}
{p2col: Description:}returns the combinatorial function
        {it:n}!/{{it:k}!({it:n} - {it:k})!}.
{p_end}
{p2colreset}{...}
