plotting sinuos curve using matlab

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fima v
fima v 2017-2-14
移动：DGM 2024-10-9
Hello , i wrote the following code by the known formulla which is attached,but instead of getting the desired sinous shape ,i get a baloon, if any one could tell where did i go wrong . Thanks
*********************
alpha=0.87
tau=1.35
r=1:0.01:1.35;
phi=alpha*sin((log(r)*pi)/(log(tau)));
figure;polarplot(r,phi);
***************************

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回答（1 个）

Honglei Chen
Honglei Chen 2017-2-14
looks like it should be
polarplot(phi,r)
instead of
polarplot(r,phi)
HTH

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