I want to plot a complex function f(z) in 3D

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Achyuth S.S
Achyuth S.S 2022-8-21
回答： Star Strider 2022-8-21
A complex function f (z) = Conjugate(z) / z
How do we plot this in MATLAB?

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Star Strider
Star Strider 2022-8-21
Ran in:
I’m not certain what you want.
Try this —
t = linspace(0, 10);
f = @(z) conj(z)./z;
z = exp(1j*2*pi*t/max(t));
figure
plot3(real(f(z)), imag(f(z)), t)
xlabel('Re')
ylabel('Im')
zlabel('t')
title('f(z)')
grid on
.

更多回答（1 个）

Paul
Paul 2022-8-21
Ran in:
f(z) can be defined by:
f = @(z) conj(z)./z;
As for the plot, that depends on the kind of plot that's desired. Here's a plot of Re(f) over a region of the complex plane.
[R,I] = meshgrid(-5:.1:5,-5:.1:5);
F = real(f(R + 1j*I));
surf(R,I,F);

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