D.15.3.12 chHE

Usage:

chHE(c); c list of polynomials

Return:

polynomial

Purpose:

computes the highest relevant term of the Chern character

Note:

uses the elimination and is extremely inefficient,
is included just for comparison with chAll(c)

LIB "chern.lib";
ring r = 0, (c(1..3)), dp;
list l=c(1..3);
//the third degree term of the Chern character
print( chHE(l) );
==> 1/6*c(1)^3-1/2*c(1)*c(2)+1/2*c(3)