fact.m

matlab实用教程

function y = fact(n)                           %  函数定义行
%Compute a factorial value.                    %  H1行
%FACT(N) returns the factorial of N,             % 帮助文档
%usually dnoted by N!

%Put simply, FACT(N) is PROD(1:N).           % 注释
y = prod(1: n);