- diff() is now only defined on classes ex and basic, where it handles

[ginac.git] / ginac / expairseq.h

diff --git a/ginac/expairseq.h b/ginac/expairseq.h
index 54062f64add25e7f34735a4adbba1400496b338c..9c32dbdf5fb8ec7dd446c10fc146fe617500c9a7 100644 (file)
--- a/ginac/expairseq.h
+++ b/ginac/expairseq.h
@@ -102,9 +102,9 @@ public:
     ex eval(int level=0) const;
     ex evalf(int level=0) const;
     ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
-    ex diff(const symbol & s) const;
     ex subs(const lst & ls, const lst & lr) const;
 protected:
+    ex derivative(const symbol & s) const;
     int compare_same_type(const basic & other) const;
     bool is_equal_same_type(const basic & other) const;
     unsigned return_type(void) const;