f_dgammapdadx.ihlp

来自「是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到」· IHLP 代码 · 共 7 行

{* 30nor2004}{...}
{phang}
{cmd:dgammapdadx(}{it:a}{cmd:,}{it:x}{cmd:)} returns the 2nd partial
	derivative of the cumulative Gamma distribution
	{cmd:gammap(}{it:a}{cmd:,}{it:x}{cmd:)}
	with respect to {it:a} and {it:x}, for {it:a} > 0.{p_end}