Hello all,
I am trying to figure out the most efficient way to get the sum of the product of two vectors where id != id. E.g.: X = array([1,2,3]) Y = array([1,2,3]) Z = (1*2) + (1*3) + (2*1) + (2*3) + (3*1) + (3*2) = 22 I could obviously do this with loops, but I was wondering if there is a version of multiply that could be used... or a form of vectorize. Any ideas would be greatly appreciated. Mark Janikas Product Engineer ESRI, Geoprocessing 380 New York St. Redlands, CA 92373 909-793-2853 (2563) [EMAIL PROTECTED]
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