- fixed normal((b*a-c*a)/(4-a)) bug: heur_gcd() only works when both input

[ginac.git] / ginac / inifcns.h

diff --git a/ginac/inifcns.h b/ginac/inifcns.h
index 5dfbdaa902844d31f101f020e191d3ed06968e97..95ed15a1606404e458a41e3aab64801e21da1f2b 100644 (file)
--- a/ginac/inifcns.h
+++ b/ginac/inifcns.h
@@ -32,6 +32,12 @@ namespace GiNaC {
 
 /** Absolute value. */
 DECLARE_FUNCTION_1P(abs)
+    
+/** Complex sign. */
+DECLARE_FUNCTION_1P(csgn)
+
+/** Eta function: log(a*b) == log(a) + log(b) + eta(a, b). */
+DECLARE_FUNCTION_2P(eta)
 
 /** Sine. */
 DECLARE_FUNCTION_1P(sin)
@@ -84,7 +90,7 @@ DECLARE_FUNCTION_1P(Li2)
 /** Trilogarithm. */
 DECLARE_FUNCTION_1P(Li3)
 
-// overloading at work: we cannot use the macros
+// overloading at work: we cannot use the macros here
 /** Riemann's Zeta-function. */
 extern const unsigned function_index_zeta1;
 inline function zeta(const ex & p1) {
@@ -97,12 +103,13 @@ inline function zeta(const ex & p1, const ex & p2) {
 }
 
 /** Gamma-function. */
-DECLARE_FUNCTION_1P(Gamma)
+DECLARE_FUNCTION_1P(lgamma)
+DECLARE_FUNCTION_1P(tgamma)
 
 /** Beta-function. */
-DECLARE_FUNCTION_2P(Beta)
+DECLARE_FUNCTION_2P(beta)
 
-// overloading at work: we cannot use the macros
+// overloading at work: we cannot use the macros here
 /** Psi-function (aka digamma-function). */
 extern const unsigned function_index_psi1;
 inline function psi(const ex & p1) {
@@ -123,9 +130,6 @@ DECLARE_FUNCTION_2P(binomial)
 /** Order term function (for truncated power series). */
 DECLARE_FUNCTION_1P(Order)
 
-/** Inert differentiation. */
-DECLARE_FUNCTION_2P(Diff)
-
 /** Inert partial differentiation operator. */
 DECLARE_FUNCTION_2P(Derivative)