Matrix dimensions must agree in a function with the sum

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Yuriy Yerin
Yuriy Yerin 2022-1-18
评论： Torsten 2022-1-18
Hello everybody.
Sorry for a stupid question but can't resolve this problem.
How can I avoid the error "Matrix dimensions must agree" without implementation of two loops for two variables?
The code is below.
function z=coeff
n=0:1:100000;
t=linspace(0.5,1.25,100);
G=linspace(0.1,1,100);
[t G] = meshgrid(t,G);
b11= @(t, G) (pi*t.*(sum((((2*n+1).*pi.*t)+G).^4./(((2*n+1).*pi.*t).^3.*(((2*n+1).*pi.*t)+2*G).^4)))+...
pi*t*(sum((((2*n+1).*pi.*t)+G).*G.*(G.^2+3*G.*((2*n+1).*pi.*t)+((2*n+1).*pi.*t).^2)./(((2*n+1).*pi.*t).^3.*(((2*n+1).*pi.*t)+2*G).^4))));
z1=b11(t,G);
contourf(t,G,z1);
colormap jet
colorbar
set(gca,'FontName','Times New Roman','FontSize',34)
end
Many thanks in advance.
  1 个评论
Torsten
Torsten 2022-1-18
Insert the lines
size(t)
size(G)
size(n)
after the call to meshgrid.
These sizes must be equal in order for the function b11 to work. In your case, they are different.

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