Find the negative entries in a array.

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E
E 2014-3-31
回答： Mischa Kim 2014-3-31
Hi everybody! I am new to Matlab and I have been using it for like one week. Now I got stuck because I need to individuate the negative entries of an array in order to modify them: I wonder then if there's a way to get the position (row and column) of these entries in the array of interest.
Thanks in advance!

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Mischa Kim
Mischa Kim 2014-3-31
E, use
[row col] = find(a<0)

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