- updated for class series->class pseries

[ginac.git] / ginac / inifcns.h

diff --git a/ginac/inifcns.h b/ginac/inifcns.h
index f4af0cb87465cc6379ea41c89dc16c57125dc658..644492d852dcb42f9f2c697a86409f7b8e8a505f 100644 (file)
--- a/ginac/inifcns.h
+++ b/ginac/inifcns.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's initially known functions. */
 
 /*
- *  GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2000 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
@@ -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__