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How to find the product of each element of a matrix by itself and by the other elemets at the same row?

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Matt Talebi
Matt Talebi 2015-3-27
评论： Andrei Bobrov 2015-3-31
input:
x = [a,b,c;
d,e,f]
output:
y = [a^2,a*b,a*c,b^2,b*c,c^2;
d^2,d*e,d*f,e^2,e*f,f^2]

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Andrei Bobrov
Andrei Bobrov 2015-3-27
编辑：Andrei Bobrov 2015-3-31
EDIT
[n1,n2] = ndgrid(1:size(x));
y = x(:,nonzeros(tril(n1))).*x(:,nonzeros(tril(n2)));
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Matt Talebi
Matt Talebi 2015-3-29
Hi Andrei! Sorry it seems that I should have mentioned the dimension of my actual matrix, which is 85 * 15. I'm given this error: "Error using .* Matrix dimensions must agree." I appreciate your help again!

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