added collect_common_factors() (is this a good name?)

[ginac.git] / ginac / normal.h

diff --git a/ginac/normal.h b/ginac/normal.h
index be67d8ebe450b0f3b0b963907991655914ed4a15..9196f965cf428ec5478f9223c174cc5be4d44169 100644 (file)
--- a/ginac/normal.h
+++ b/ginac/normal.h
@@ -63,6 +63,9 @@ extern ex sqrfree(const ex &a, const lst &l = lst());
 // Square-free partial fraction decomposition of a rational function a(x)
 extern ex sqrfree_parfrac(const ex & a, const symbol & x);
 
+// Collect common factors in sums.
+extern ex collect_common_factors(const ex & e);
+
 } // namespace GiNaC
 
 #endif // ndef __GINAC_NORMAL_H__