X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Finifcns.h;h=3d170ff8df5435d332971e9731e3795c3cbaefc4;hb=f1637dceefe0fbf79308958f8bc28dedd38aab85;hp=cff2bb2484309200a3ff777665e1c5b6dbb90979;hpb=8d08b902f1bb734fe91b5aa29c66c59788464be7;p=ginac.git

diff --git a/ginac/inifcns.h b/ginac/inifcns.h
index cff2bb24..3d170ff8 100644
--- a/ginac/inifcns.h
+++ b/ginac/inifcns.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's initially known functions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2001 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
@@ -26,12 +26,16 @@
 #include "function.h"
 #include "ex.h"
 
-#ifndef NO_NAMESPACE_GINAC
 namespace GiNaC {
-#endif // ndef NO_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)
@@ -84,36 +88,37 @@ 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) {
-    return function(function_index_zeta1, p1);
+	return function(function_index_zeta1, p1);
 }
 /** Derivatives of Riemann's Zeta-function. */
 extern const unsigned function_index_zeta2;
 inline function zeta(const ex & p1, const ex & p2) {
-    return function(function_index_zeta2, p1, p2);
+	return function(function_index_zeta2, p1, 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) {
-    return function(function_index_psi1, p1);
+	return function(function_index_psi1, p1);
 }
 /** Derivatives of Psi-function (aka polygamma-functions). */
 extern const unsigned function_index_psi2;
 inline function psi(const ex & p1, const ex & p2) {
-    return function(function_index_psi2, p1, p2);
+	return function(function_index_psi2, p1, p2);
 }
-    
+	
 /** Factorial function. */
 DECLARE_FUNCTION_1P(factorial)
 
@@ -128,15 +133,30 @@ DECLARE_FUNCTION_2P(Derivative)
 
 ex lsolve(const ex &eqns, const ex &symbols);
 
-ex ncpower(const ex &basis, unsigned exponent);
+/** Symmetrize expression over a set of objects (symbols, indices). */
+ex symmetrize(const ex & e, exvector::const_iterator first, exvector::const_iterator last);
+
+/** Symmetrize expression over a set of objects (symbols, indices). */
+inline ex symmetrize(const ex & e, const exvector & v)
+{
+	return symmetrize(e, v.begin(), v.end());
+}
+
+/** Antisymmetrize expression over a set of objects (symbols, indices). */
+ex antisymmetrize(const ex & e, exvector::const_iterator first, exvector::const_iterator last);
+
+/** Antisymmetrize expression over a set of objects (symbols, indices). */
+inline ex antisymmetrize(const ex & e, const exvector & v)
+{
+	return antisymmetrize(e, v.begin(), v.end());
+}
 
+/** Check whether a function is the Order (O(n)) function. */
 inline bool is_order_function(const ex & e)
 {
-    return is_ex_the_function(e, Order);
+	return is_ex_the_function(e, Order);
 }
 
-#ifndef NO_NAMESPACE_GINAC
 } // namespace GiNaC
-#endif // ndef NO_NAMESPACE_GINAC
 
 #endif // ndef __GINAC_INIFCNS_H__