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Nyquist plot - Changing the graph axes

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Shahar ben ezra
Shahar ben ezra on 15 Oct 2020
Commented: Shahar ben ezra on 24 Oct 2020
Hello everyone
According to the following code why I see the graph like this:
and not like this :
my code
The most basic there is :
sys1 = tf([1 1 ],[1 -1 0])
nyquist(sys1),grid on

Answers (1)

Chaitanya Mallela
Chaitanya Mallela on 22 Oct 2020
From the basic graph, you can observe that the axis points are different for real and imaginary. Try setting the equal axis and adjust the graph on the figure window.
sys1 = tf([1 1],[1 -1 0])
axis equal
grid on


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