/** @file inifcns.h
 *
 *  Interface to GiNaC's initially known functions.
 *
 *  GiNaC Copyright (C) 1999 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
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __GINAC_INIFCNS_H__
#define __GINAC_INIFCNS_H__

#include <ginac/function.h>
#include <ginac/ex.h>

/** Sine. */
DECLARE_FUNCTION_1P(sin)

/** Cosine. */
DECLARE_FUNCTION_1P(cos)

/** Tangent. */
DECLARE_FUNCTION_1P(tan)

/** Exponential function. */
DECLARE_FUNCTION_1P(exp)

/** Natural logarithm. */
DECLARE_FUNCTION_1P(log)

/** Inverse sine (arc sine). */
DECLARE_FUNCTION_1P(asin)

/** Inverse cosine (arc cosine). */
DECLARE_FUNCTION_1P(acos)

/** Inverse tangent (arc tangent). */
DECLARE_FUNCTION_1P(atan)

/** Inverse tangent with two arguments. */
DECLARE_FUNCTION_2P(atan2)

/** Hyperbolic Sine. */
DECLARE_FUNCTION_1P(sinh)

/** Hyperbolic Cosine. */
DECLARE_FUNCTION_1P(cosh)

/** Hyperbolic Tangent. */
DECLARE_FUNCTION_1P(tanh)

/** Inverse hyperbolic Sine (area hyperbolic sine). */
DECLARE_FUNCTION_1P(asinh)

/** Inverse hyperbolic Cosine (area hyperbolic cosine). */
DECLARE_FUNCTION_1P(acosh)

/** Inverse hyperbolic Tangent (area hyperbolic tangent). */
DECLARE_FUNCTION_1P(atanh)

/** Dilogarithm. */
DECLARE_FUNCTION_1P(Li2)

/** Trilogarithm. */
DECLARE_FUNCTION_1P(Li3)

/** Gamma function. */
DECLARE_FUNCTION_1P(gamma)

/** Factorial function. */
DECLARE_FUNCTION_1P(factorial)

/** Binomial function. */
DECLARE_FUNCTION_2P(binomial)

/** Order term function (for truncated power series). */
DECLARE_FUNCTION_1P(Order)

ex lsolve(ex const &eqns, ex const &symbols);

ex ncpower(ex const &basis, unsigned exponent);

inline bool is_order_function(ex const & e)
{
	return is_ex_the_function(e, Order);
}

#endif // ndef __GINAC_INIFCNS_H__