How to fix the error "Matrix dimensions must agree" in my code

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may
may 2013-9-22
I have the following two functions:
function [answer]=Sum_of_randomVariable(mean11,sigma11,mean12,sigma12,mean21,sigma21,mean22,sigma22,z)
A=@(x)FindIntegral(mean11,sigma11,mean12,sigma12,x);
B=@(x)FindIntegral(mean21,sigma21,mean22,sigma22,x);
F=@(y)A(z-y).*B(y);
answer= integral(F,-Inf,Inf);
end
function [answer] = FindIntegral(mean1,sigma1,mean2,sigma2,u)
F = @(x)normpdf(x, mean1, sigma1).*normpdf(u./x, mean2, sigma2).*(1./abs(x));
answer= integral(F,-Inf,Inf);
end
When I run Sum_of_randomVariable for the following input parameters:
Sum_of_randomVariable(1,0.2,2,0.5,5,0.6,2,5,2)
I get the following error: Error using ./ Matrix dimensions must agree.
I would appreciate if you could help me fix this error. Thank you.

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回答（1 个）

Image Analyst
Image Analyst 2013-9-22
Evidently x and u aren't the same size. Set a breakpoint there. What does it say their sizes are?

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