#include <ginac/function.h>
#include <ginac/ex.h>
+#ifndef NO_GINAC_NAMESPACE
+namespace GiNaC {
+#endif // ndef NO_GINAC_NAMESPACE
+
/** Sine. */
DECLARE_FUNCTION_1P(sin)
/** 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)
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__