Pole-zero map of dynamic system model with plot customization options

`h = pzplot(sys)`

pzplot(sys1,sys2,...)

pzplot(AX,...)

pzplot(..., plotoptions)

`h = pzplot(sys)`

computes the poles and
(transmission) zeros of the dynamic
system model `sys`

and plots them
in the complex plane. The poles are plotted as x's and the zeros are
plotted as o's. It also returns the plot handle `h`

.
You can use this handle to customize the plot with the `getoptions`

and `setoptions`

commands.
Type

help pzoptions

for a list of available plot options. For more information on the ways to change properties of your plots, see Ways to Customize Plots.

`pzplot(sys1,sys2,...)`

shows the poles and
zeros of multiple models `sys1`

,`sys2`

,...
on a single plot. You can specify distinctive colors for each model,
as in

pzplot(sys1,'r',sys2,'y',sys3,'g')

`pzplot(AX,...)`

plots into the axes with
handle `AX`

.

`pzplot(..., plotoptions)`

plots the poles
and zeros with the options specified in `plotoptions`

.
Type

help pzoptions

for more detail.

The function `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 dynamic system models, `pzmap`

plots
the poles and zeros of each model in the array on the same diagram.

`getoptions`

| `iopzplot`

| `pzmap`

| `setoptions`

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