More evaluation rules: abs(x^n) => abs(x)^n (x > 0, n is real).

[ginac.git] / ginac / mul.h

diff --git a/ginac/mul.h b/ginac/mul.h
index 50ab6edc0b6f0e2da608ff07708c943ab46a93f9..d28b6276c8b3d91039f9a5d0276e4a80bb490731 100644 (file)
--- a/ginac/mul.h
+++ b/ginac/mul.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's products of expressions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2009 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2011 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
@@ -49,6 +49,7 @@ public:
 public:
        unsigned precedence() const {return 50;}
        bool info(unsigned inf) const;
+       bool is_polynomial(const ex & var) const;
        int degree(const ex & s) const;
        int ldegree(const ex & s) const;
        ex coeff(const ex & s, int n = 1) const;
@@ -64,6 +65,7 @@ public:
        ex smod(const numeric &xi) const;
        numeric max_coefficient() const;
        exvector get_free_indices() const;
+       ex conjugate() const;
 protected:
        ex derivative(const symbol & s) const;
        ex eval_ncmul(const exvector & v) const;