lsu.m

信号与系统时域、频域分析及MATLAB软件的应用及仿真m程序

x1=-0.2:0.03:0.2
y1=-0.2:0.03:0.2
[x,y]=meshgrid(x1,y1)
s=x+i*y
fs=abs(1./s)
mesh(x,y,fs)
surf(x,y,fs)
title('单位阶跃信号u(t)拉氏变换曲面图')
colormap(hsv)
axis([-0.2,0.2,-0.2,0.2,0,60])
rotate3d;