- 零入力応答=自由応答=初期条件応答 -> initial()
- ステップ応答=零状態応答 -> step()
- 時間応答=ステップ応答+零入力応答 -> lsim()
clear all; close all; drawResponse(1); drawResponse(2); drawResponse(3); function drawResponse(number) aa=[-11 -2 0]; c = [1 0]; x0 = [1 0]'; A = [ 0 1 -10 aa(number) ]; b = [0 1]'; d = 0; t = 0:0.1:5; sys = ss(A,b,c,d); subplot(3,3,number); initial(sys,x0,t); subplot(3,3,3+number); step(sys,t); subplot(3,3,6+number); u = zeros(size(t))+1; lsim(sys,u,t,x0); end