X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Finifcns.h;h=6f5f47223e3a5a9ea865ee58d789b2c5ef880f56;hp=f4af0cb87465cc6379ea41c89dc16c57125dc658;hb=8916b8b2f24b374dfda8a9dd37e6b8d6bf7602c4;hpb=487e5659efe401683eee0381b0d23f967ffffc3c

diff --git a/ginac/inifcns.h b/ginac/inifcns.h
index f4af0cb8..6f5f4722 100644
--- a/ginac/inifcns.h
+++ b/ginac/inifcns.h
@@ -26,6 +26,13 @@
 #include <ginac/function.h>
 #include <ginac/ex.h>
 
+#ifndef NO_GINAC_NAMESPACE
+namespace GiNaC {
+#endif // ndef NO_GINAC_NAMESPACE
+
+/** Absolute value. */
+DECLARE_FUNCTION_1P(abs)
+
 /** Sine. */
 DECLARE_FUNCTION_1P(sin)
 
@@ -77,9 +84,36 @@ DECLARE_FUNCTION_1P(Li2)
 /** Trilogarithm. */
 DECLARE_FUNCTION_1P(Li3)
 
-/** Gamma function. */
+// overloading at work: we cannot use the macros
+/** Riemann's Zeta-function. */
+extern const unsigned function_index_zeta1;
+inline function zeta(ex const & p1) {
+    return function(function_index_zeta1, p1);
+}
+/** Derivatives of Riemann's Zeta-function. */
+extern const unsigned function_index_zeta2;
+inline function zeta(ex const & p1, ex const & p2) {
+    return function(function_index_zeta2, p1, p2);
+}
+
+/** Gamma-function. */
 DECLARE_FUNCTION_1P(gamma)
 
+/** Beta-function. */
+DECLARE_FUNCTION_2P(beta)
+
+// overloading at work: we cannot use the macros
+/** Psi-function (aka digamma-function). */
+extern const unsigned function_index_psi1;
+inline function psi(ex const & p1) {
+    return function(function_index_psi1, p1);
+}
+/** Derivatives of Psi-function (aka polygamma-functions). */
+extern const unsigned function_index_psi2;
+inline function psi(ex const & p1, ex const & p2) {
+    return function(function_index_psi2, p1, p2);
+}
+    
 /** Factorial function. */
 DECLARE_FUNCTION_1P(factorial)
 
@@ -95,7 +129,11 @@ ex ncpower(ex const &basis, unsigned exponent);
 
 inline bool is_order_function(ex const & e)
 {
-	return is_ex_the_function(e, Order);
+    return is_ex_the_function(e, Order);
 }
 
+#ifndef NO_GINAC_NAMESPACE
+} // namespace GiNaC
+#endif // ndef NO_GINAC_NAMESPACE
+
 #endif // ndef __GINAC_INIFCNS_H__