Merge commit 'origin/master'

[ginac.git] / ginac / indexed.h

diff --git a/ginac/indexed.h b/ginac/indexed.h
index 4ad25cb96dadf00609f9d1e11862daf735d43e0b..3c8951a1ee4b4af48a7108d01998fb59083cff27 100644 (file)
--- a/ginac/indexed.h
+++ b/ginac/indexed.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's indexed expressions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2006 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2008 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
@@ -147,6 +147,8 @@ public:
        unsigned precedence() const {return 55;}
        bool info(unsigned inf) const;
        ex eval(int level = 0) const;
+       ex real_part() const;
+       ex imag_part() const;
        exvector get_free_indices() const;
 
 protected:
@@ -268,7 +270,7 @@ lst rename_dummy_indices_uniquely(const exvector & va, const exvector & vb);
 
 /** This function returns the given expression with expanded sums
  *  for all dummy index summations, where the dimensionality of 
- *  the dummy index is numeric.
+ *  the dummy index is a nonnegative integer.
  *  Optionally all indices with a variance will be substituted by 
  *  indices with the corresponding numeric values without variance.
  *