* Interface to GiNaC's non-commutative products of expressions. */
/*
- * GiNaC Copyright (C) 1999-2015 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2018 Johannes Gutenberg University Mainz, Germany
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
int ldegree(const ex & s) const override;
ex expand(unsigned options=0) const override;
ex coeff(const ex & s, int n=1) const override;
- ex eval(int level=0) const override;
+ ex eval() const override;
ex evalm() const override;
exvector get_free_indices() const override;
ex thiscontainer(const exvector & v) const override;