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+/*-------------------------------------------------------------------------
+   math.h - Floating point math function declarations
+
+   Copyright (C) 2001, Jesus Calvino-Fraga <jesusc AT ieee.org>
+   Ported to PIC16 port by Vangelis Rokas, 2004 <vrokas AT otenet.gr>
+
+   This library 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, or (at your option) any
+   later version.
+
+   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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this library; see the file COPYING. If not, write to the
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA.
+
+   As a special exception, if you link this library with other files,
+   some of which are compiled with SDCC, to produce an executable,
+   this library does not by itself cause the resulting executable to
+   be covered by the GNU General Public License. This exception does
+   not however invalidate any other reasons why the executable file
+   might be covered by the GNU General Public License.
+-------------------------------------------------------------------------*/
+
+#ifndef __PIC16_MATH_H
+#define __PIC16_MATH_H	1
+
+#pragma library math
+
+#include <sdcc-lib.h>
+
+#define PI          3.1415926536
+#define TWO_PI      6.2831853071
+#define HALF_PI     1.5707963268
+#define QUART_PI    0.7853981634
+#define iPI         0.3183098862
+#define iTWO_PI     0.1591549431
+#define TWO_O_PI    0.6366197724
+
+// EPS=B**(-t/2), where B is the radix of the floating-point representation
+// and there are t base-B digits in the significand.  Therefore, for floats
+// EPS=2**(-12).  Also define EPS2=EPS*EPS.
+#define EPS 244.14062E-6
+#define EPS2 59.6046E-9
+#define XMAX 3.402823466E+38
+
+union float_long
+{
+    float f;
+    long l;
+};
+
+/**********************************************
+ * Prototypes for float ANSI C math functions *
+ **********************************************/
+
+/* Trigonometric functions */
+float sinf(float x) _MATH_REENTRANT;
+float cosf(float x) _MATH_REENTRANT;
+float tanf(float x) _MATH_REENTRANT;
+float cotf(float x) _MATH_REENTRANT;
+float asinf(float x) _MATH_REENTRANT;
+float acosf(float x) _MATH_REENTRANT;
+float atanf(float x) _MATH_REENTRANT;
+float atan2f(float x, float y);
+
+/* Hyperbolic functions */
+float sinhf(float x) _MATH_REENTRANT;
+float coshf(float x) _MATH_REENTRANT;
+float tanhf(float x) _MATH_REENTRANT;
+
+/* Exponential, logarithmic and power functions */
+float expf(float x);
+float logf(float x) _MATH_REENTRANT;
+float log10f(float x) _MATH_REENTRANT;
+float powf(float x, float y);
+float sqrtf(float a) _MATH_REENTRANT;
+
+/* Nearest integer, absolute value, and remainder functions */
+float fabsf(float x) _MATH_REENTRANT;
+float frexpf(float x, int *pw2);
+float ldexpf(float x, int pw2);
+float ceilf(float x) _MATH_REENTRANT;
+float floorf(float x) _MATH_REENTRANT;
+float modff(float x, float * y);
+
+int isnan(float f);
+int isinf(float f);
+#endif  /* _PIC16_MATH_H */