/*
 * The Spar Library - modular math parser
 * Copyright (C) 2000,2001 Davide Angelocola <davide178@inwind.it>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA  02111-1307, USA.
 *
 */

#ifndef _sl_constant_h_
#define _sl_constant_h_

#undef M_E
#undef M_LOG2E
#undef M_LOG10E
#undef M_LN2
#undef M_LN10
#undef M_PI
#undef M_PI_2
#undef M_PI_4
#undef M_1_PI
#undef M_2_PI
#undef M_2_SQRTPI
#undef M_SQRT2
#undef M_SQRT1_2

#define M_E            2.7182818284590452354    /* e */
#define M_LOG2E        1.4426950408889634074    /* log_2 e */
#define M_LOG10E       0.43429448190325182765   /* log_10 e */
#define M_LN2          0.69314718055994530942   /* log_e 2 */
#define M_LN10         2.30258509299404568402   /* log_e 10 */
#define M_PI           3.14159265358979323846   /* pi */
#define M_PI_2         1.57079632679489661923   /* pi/2 */
#define M_PI_4         0.78539816339744830962   /* pi/4 */
#define M_1_PI         0.31830988618379067154   /* 1/pi */
#define M_2_PI         0.63661977236758134308   /* 2/pi */
#define M_2_SQRTPI     1.12837916709551257390   /* 2/sqrt(pi) */
#define M_SQRT2        1.41421356237309504880   /* sqrt(2) */
#define M_SQRT1_2      0.70710678118654752440   /* 1/sqrt(2) */

/*
 *  Some other constants
 */
#define SL_NAN                  (0.0 / 0.0)
#define SL_POSINF               (+1.0 / 0.0)
#define SL_NEGINF               (-1.0 / 0.0)
#define SL_DOUBLE_EPSILON    2.2204460492503131e-16
#define SL_DOUBLE_MIN        2.2250738585072014e-308
#define SL_DOUBLE_MAX        1.7976931348623157e+308

#define ZERO 		0.0
#define SL_ZERO		ZERO
#endif /* _sl_constant_h_ */