Charles Greathouse on Wed, 21 Oct 2015 22:42:27 +0200
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Given a vectors u and v with #v == #u, what's the easiest way to extract the elements of v for which the corresponding element of u is nonzero? (All elements from u will be 0 or 1.)
This is for constructing divisors of factorback(v) in their factored form.
Case Western Reserve University