a list, the list of power elementary symmetric polynomials
Description
As an example the elementary symmetric polynomials of a ring with three variables are calculated. These polynomials form a basis for the ring of symmetric polynomials.
i1 : R = QQ[x_1..x_3]
o1 = R
o1 : PolynomialRing
i2 : elementarySymmetricPolynomials R
o2 = {x + x + x , x x + x x + x x , x x x }
1 2 3 1 2 1 3 2 3 1 2 3
o2 : List