www.gusucode.com > MATLAB仿真技术与应用__的配套例题和习题的matlab源代码 > 第七章/example12.m
%MATLAB program 7-12 %Draw Bode, Nichols and Nyquist clear all; clc; num=[1 1 32]; den=conv([1 40],[1 4 32]); G=tf(40*num,den); bode(G); nichols(G); grid; ngrid; nyquist(G); axis equal;