MATLAB: Need help solving this summation

summations

I need to solve this, but keep getting an error about the matrix, probably dealing with the x and y variables set.
L=3; W=5; x=linspace(0,L,10); 
y = linspace(0,W,7); N=9; 
P = 1:2:N
w = 2/pi .* sum(2./P .* sin(P.*pi.*x./L) .* (sinh(P.*pi.*y./L) ./ sinh(P.*pi.*W./L)))
there is a picture attached, showing the summation, I might not even be doing this right Im new to matlab. It has to be done using the sum function not symsum, a for loop also can be done to solve this if possible.

Best Answer

Make these changes in your code:
   L=3;
   W=5;
   x=linspace(0,L,10); 
   y = linspace(0,W,7);
   N=9; 
   P = 1:2:N
   for ix = 1:10
     for iy  = 1:7
       w(ix,iy) = 2/pi .* sum(2./P .* sin(P.*pi.*x(ix)./L) .* (sinh(P.*pi.*y(iy)./L) ./ sinh(P.*pi.*W./L)));
     end
   end
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