MATLAB程序：蒙特卡洛法求椭圆面积

clear

n=500000;

x=rand(1,n);

y=rand(1,n);

x=2.*x;

y=3.*y;

r=(1/4).*x.*x+(1/9).*y.*y;

m=find(r<=1);

mm=length(m);

S=(mm/n)*24