stem4.m

来自「自制的快速傅立叶变换函数」· M 代码 · 共 6 行

function stem4(s)
subplot(4,1,1);     stem(real(s));    title('Real');
subplot(4,1,2);     stem(imag(s));    title('Imag');
subplot(4,1,3);     stem(abs(s));    title('Abs');
subplot(4,1,4);     stem(angle(s));    title('Angle');