amath/lib/math.h

96 lines
2.8 KiB
C

/*-
* Copyright (c) 2015-2017 Carsten Sonne Larsen <cs@innolan.dk>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef LIBAMATH_REAL_H
#define LIBAMATH_REAL_H
/**
* @file math.h
* @brief Functions in math library for handling real numbers.
*
* The library is based on fdlib by Sun Microsystems.
* The original library can be downloaded at:
* http://www.netlib.org/fdlibm/
*
* or from mirros site:
* http://www.hensa.ac.uk/
*
* All headers and dates are preserved.
*
*/
#define PI 3.141592653589793238462643383279
#define EULERS 2.718281828459045235360287471352
#define sgn(x) x > 0.0 ? 1.0 : x < 0.0 ? -1.0 : 0.0
#define log2p(x,y) log(x)/log(y)
#ifdef __cplusplus
extern "C" {
#endif
int isnan(double x);
int finite(double x);
double fabs(double x);
double ceil(double x);
double floor(double x);
double round(double x);
double trunc(double x);
double exp(double x);
double sqrt(double x);
double cbrt(double x);
double log(double x);
double log10(double x);
double cos(double x);
double sin(double x);
double tan(double x);
double acos(double x);
double asin(double x);
double atan(double x);
double cosh(double x);
double sinh(double x);
double tanh(double x);
double acosh(double x);
double asinh(double x);
double atanh(double x);
double pow(double x, double y);
double fmod(double x, double y);
double atan2(double y, double x);
double hypot(double x, double y);
double log1p(double x);
double expm1(double x);
double scalbn (double x, int n);
double copysign(double x, double y);
int rempio2(double x, double *y);
#ifdef __cplusplus
}
#endif
#endif