* Interface to GiNaC's initially known functions. */
/*
- * GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2003 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
#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)
// 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);
+class zeta1_SERIAL { public: static unsigned serial; };
+template<typename T1>
+inline function zeta(const T1 & p1) {
+ return function(zeta1_SERIAL::serial, ex(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);
+class zeta2_SERIAL { public: static unsigned serial; };
+template<typename T1, typename T2>
+inline function zeta(const T1 & p1, const T2 & p2) {
+ return function(zeta2_SERIAL::serial, ex(p1), ex(p2));
+}
+class zeta_SERIAL;
+template<> inline bool is_the_function<class zeta_SERIAL>(const ex & x)
+{
+ return is_the_function<zeta1_SERIAL>(x) || is_the_function<zeta2_SERIAL>(x);
}
/** Gamma-function. */
// 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);
+class psi1_SERIAL { public: static unsigned serial; };
+template<typename T1>
+inline function psi(const T1 & p1) {
+ return function(psi1_SERIAL::serial, ex(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);
+class psi2_SERIAL { public: static unsigned serial; };
+template<typename T1, typename T2>
+inline function psi(const T1 & p1, const T2 & p2) {
+ return function(psi2_SERIAL::serial, ex(p1), ex(p2));
+}
+class psi_SERIAL;
+template<> inline bool is_the_function<class psi_SERIAL>(const ex & x)
+{
+ return is_the_function<psi1_SERIAL>(x) || is_the_function<psi2_SERIAL>(x);
}
-
+
/** Factorial function. */
DECLARE_FUNCTION_1P(factorial)
/** Order term function (for truncated power series). */
DECLARE_FUNCTION_1P(Order)
-/** Inert partial differentiation operator. */
-DECLARE_FUNCTION_2P(Derivative)
-
-ex lsolve(const ex &eqns, const ex &symbols);
-
-ex ncpower(const ex &basis, unsigned exponent);
+ex lsolve(const ex &eqns, const ex &symbols, unsigned options = solve_algo::automatic);
+/** 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__