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Matrix dimensions must agree for computing spherical harmonics !!!!

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Ano
Ano 2017-3-9
回答： Ano 2017-3-10
Hi i am trying to calculate the spherical harmonic but I get an error saying that the matrices dimensions must agree, here is the code, any suggesions are very welcomed!
L=4;
theta =linspace(0,pi,5); %theta ranges from 0 to pi
phi =linspace(0, 2*pi,5); %phi ranges from 0 to 2*pi
for m=-L:L
cst = sqrt((2*L+1)*factorial(L-m)/((4*pi)*factorial(L+m))); %constant of spherical harmonics
P = legendre(L,cos(theta));
Y = cst.*P.*exp(-1j.*m.*phi);
end
  2 个评论
Rahul Kalampattel
Rahul Kalampattel 2017-3-9
I'm not getting any errors when I run your code in Matlab (R2016b). Which line were you having trouble with?
KSSV
KSSV 2017-3-10
cst.*P.*exp(-1j.*m.*phi) In this P is 5x5 matrix, exp(-1j*m*phi) is 1x5..you expect output to be a matrix or array?

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回答（1 个）

Ano
Ano 2017-3-10
the output should be a matrix I have solve it by using the transpose of P now it works! Thank you!!

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