Class xlifepp::PolyNodeT# template<typename K = real_t>class PolyNodeT# deals with a tree representation of Polynomials Public Members PolyNodeT<K> *child# the first child K coef# coefficient of a monomial when node is a leaf, 0 is not a leaf PolyNodeT<K> *parent# the parent node PolyNodeT<K> *right# the right node dimen_t type# 0: 1, 1: x1, 2:x2, 3:x3, …