* 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
#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)
/** 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. */
/** Beta-function. */
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)
ex lsolve(const ex &eqns, const ex &symbols);
-ex ncpower(const ex &basis, unsigned exponent);
-
+/** 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__