SymmetricPolynomial
Input: SymmetricPolynomial(n, X_(1), ..., X_(k))
$$e_{n}\!\left(X_{1}, \ldots, X_{k}\right)$$Elementary symmetric polynomial of degree $n$ in $k$ variables.
$$e_{2}\!\left(X, Y, Z\right) = X Y + X Z + Y Z$$
An elementary symmetric polynomial in three variables.
Last updated: 2020-03-06 00:22:16