segreDimX(IX,IY,A)
For subschemes X,Y of \PP^{n_1}x...x\PP^{n_m} this command computes the dimension X part of the Segre class s(X,Y) of X in Y as a class in the Chow ring of \PP^{n_1}x...x\PP^{n_m}. This is faster than computing the entire Segre class.
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The object segreDimX is a method function with options.