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how to take all non zero elements product of matrix

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Jay Hanuman
Jay Hanuman 2016-11-9
编辑： KSSV 2016-11-9
how to do.

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KSSV
KSSV 2016-11-9
编辑：KSSV 2016-11-9
Let A me your matrix or array.
idx = A~=0;
iwant=prod(A(idx));
idx should be an array. If not change A matrix to column using
A=A(:);
And then use the above code.

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