Control System Toolbox™

iopzmap - Plot pole-zero map for I/O pairs of LTI model

Syntax

iopzmap(sys)
iopzmap(sys1,sys2,...)

Description

iopzmap(sys) computes and plots the poles and zeros of each input/output pair of the LTI model sys. The poles are plotted as x's and the zeros are plotted as o's.

iopzmap(sys1,sys2,...) shows the poles and zeros of multiple LTI models sys1,sys2,... on a single plot. You can specify distinctive colors for each model, as in iopzmap(sys1,'r',sys2,'y',sys3,'g').

The functions sgrid or zgrid can be used to plot lines of constant damping ratio and natural frequency in the s or z plane.

For arrays sys of LTI models, iopzmap plots the poles and zeros o each model in the array on the same diagram.

Example

Create a one-input, two-output system and plot pole-zero maps for I/O pairs.

H = [tf(-5 ,[1 -1]); tf([1 -5 6],[1 1 0])];
iopzmap(H) 

See Also

pzmap, pole, zero, sgrid, zgrid, ltimodels

inv

iopzplot