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Collecting against a set of expressions

When given a polynomial p and a set of products of variables {q , ..., q} (where each q is a product of variables), NCCollect begins by creating new variables {v , ..., v}, transforms p by replacing instances of the polynomial q in p with v , performs NCCollect as described in § and then replaces v with q .

Wed Jul 3 10:27:42 PDT 1996