?? fig7_76.m
字號:
% Figure 7.76 Feedback Control of Dynamic Systems, 4e
% Franklin, Powell, Emami
%
% script to generate Fig. 7.76 heat exchanger root locus
clf;
np=1;
dp=conv([10 1],[60 1]);
r=[-.14+.27*i -.14-.27*i];
dc=poly(r);
nc=[1 1.8];
num=conv(np,nc);
den=conv(dp,dc);
rlocus(num,den)
axis([-.4 .4 -.3 .3])
title('Fig. 7.76 Root locus for the heat exchanger design')
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