Turning a complex function into 3d graph

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Beyza Nur
Beyza Nur on 15 Jan 2023
Commented: Beyza Nur on 15 Jan 2023
Ran in:
lambda= 0.1;
k= 2.*pi./lambda;
theta= 0:.01:2.*pi;
b= 4.*lambda;
r= 6.*lambda;
z= r.*cos(theta);
rho= r.*sin(theta);
f= (exp(-j.*k.*(z-(j.*b)))./(z-(j.*b)).*exp(j.*k.*sqrt(rho)./2.*(z-(j.*b)))).'
f =
1.0e-06 * 0.0000 + 0.0000i -0.0000 + 0.0000i -0.0001 + 0.0000i -0.0001 + 0.0000i -0.0001 - 0.0000i -0.0001 - 0.0001i -0.0001 - 0.0002i -0.0000 - 0.0002i 0.0000 - 0.0003i 0.0001 - 0.0003i 0.0002 - 0.0003i 0.0003 - 0.0003i 0.0005 - 0.0002i 0.0006 - 0.0001i 0.0006 + 0.0001i 0.0007 + 0.0002i 0.0007 + 0.0004i 0.0007 + 0.0007i 0.0006 + 0.0009i 0.0004 + 0.0011i 0.0002 + 0.0013i -0.0001 + 0.0015i -0.0005 + 0.0015i -0.0009 + 0.0015i -0.0013 + 0.0015i -0.0018 + 0.0013i -0.0022 + 0.0009i -0.0026 + 0.0005i -0.0029 - 0.0001i -0.0031 - 0.0007i -0.0031 - 0.0015i -0.0030 - 0.0023i -0.0026 - 0.0032i -0.0021 - 0.0040i -0.0013 - 0.0047i -0.0003 - 0.0052i 0.0009 - 0.0056i 0.0022 - 0.0058i 0.0036 - 0.0056i 0.0051 - 0.0051i 0.0065 - 0.0042i 0.0078 - 0.0029i 0.0089 - 0.0013i 0.0096 + 0.0006i 0.0099 + 0.0029i 0.0098 + 0.0053i 0.0090 + 0.0077i 0.0077 + 0.0102i 0.0057 + 0.0124i 0.0031 + 0.0142i 0.0000 + 0.0155i -0.0036 + 0.0162i -0.0074 + 0.0161i -0.0114 + 0.0150i -0.0153 + 0.0130i -0.0189 + 0.0099i -0.0219 + 0.0060i -0.0240 + 0.0012i -0.0252 - 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this is the function and I use a few method for 3D graph but I can't get enough result for my project. I think someting is missing. I don't like my results. I used meshgrid and surf command but results not good. Can anyone help me this one? Thank you.
  9 Comments
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Torsten
Torsten on 15 Jan 2023
Edited: Torsten on 15 Jan 2023
Ran in:
lambda= 0.1;
k= 2*pi/lambda;
theta= 0:.01:2*pi;
b= 4*lambda;
r= 6*lambda;
z= r*cos(theta);
rho= (r*sin(theta)).';
f= exp(-j.*k.*(z-(j.*b)))./(z-(j.*b)).*exp(j.*k.*sqrt(rho)./2.*(z-(j.*b)));
surf(z,rho,abs(f),"edgecolor","none")
Beyza Nur
Beyza Nur on 15 Jan 2023
okey, thank you for your concern. If I get different information I will update this question.

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