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double summation of an equation with four variables

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Preethi
Preethi 2015-5-2
关闭： MATLAB Answer Bot 2021-8-20
i need some help using symbolic variables. i have a equation with double summation
f(x,y)=sigma(i=1:4)sigma(j=1:5)g(x,y,i,j)*w(i,j) where g() is a function but w is a matrix, x and y are vectors. i need to multiply the element corresponding to w(i,j) while doing the summation. how can i do it considering four variables.
thanking you in advance

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