f_gammap.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

{* 30nov2004}{...}
{phang}
{cmd:gammap(}{it:a}{cmd:,}{it:x}{cmd:)} returns the cumulative Gamma
	distribution for {it:a} > 0; returns 0 unless {it:x} {ul:>} 0.
	This function is also known as the incomplete gamma function,
	{it:P(a,x)}.{p_end}