D.5.2.8 sum_of_powers

Usage:

sum_of_powers(k, l); k non-negative integer, l list of polynomials

Return:

polynomial

Purpose:

computes the sum of k-th powers of the entries of l

Note:

returns 0 if k is negative

LIB "chern.lib";
ring r = 0, (x, y, z), dp;
list l=x, y, z;
//sum of 7-th powers of x, y, z
print( sum_of_powers(7, l) );