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D.5.17.15 totalSegreClass

Procedure from library schubert.lib (see schubert_lib).

Usage:
totalSegreClass(S); S sheaf

Return:
poly

Input:
S is a sheaf

Theory:
This is the total Segre class of a sheaf.
SEE AlSO: totalChernClass

Example:
 
LIB "schubert.lib";
variety G = Grassmannian(2,4);
def R = G.baseRing;
setring R;
sheaf S = makeSheaf(G,subBundle);
totalSegreClass(S);
==> q(2)+q(1)+1

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