#ifndef MATH_H
#define MATH_H

/*
 *  math.lib
 */

extern double	modf();		/* Integer and remainder			*/
extern double	ldexp();	/* load the exponent				*/
extern double	frexp();	/* retrieve the exponent			*/

extern double	acos();		/* inverse trigonometric function	*/
extern double	asin();		/* inverse trigonometric function 	*/
extern double	atan();		/* inverse trigonometric function	*/
extern double	atan2();	/* inverse trigonometric function 	*/
extern double	cos();		/* trigonometric function			*/
extern double	sin();		/* trigonometric function			*/
extern double	tan();		/* trigonometric function			*/

extern double	acosh();	/* inverse hyperbolic function		*/
extern double	asinh();	/* inverse hyperbolic function		*/
extern double	atanh();	/* inverse hyperbolic function		*/

extern double	cosh();		/* hyperbolic function				*/
extern double	tanh();		/* hyperbolic function 				*/
extern double	sinh();		/* hyperbolic function				*/

extern double	cabs();		/* complex absolute value			*/

extern double	cbrt();		/* cube root						*/
extern double	sqrt();		/* square root						*/
extern double	hypot();	/* Euclidean distance				*/

extern double	fabs();		/* absolute value					*/
extern double	floor();	/* integer no greater than			*/
extern double	ceil();		/* integer no less than				*/
extern double	rint();		/* round to nearest integer			*/

extern double	drem();		/* remainder						*/
extern double	copysign();	/* copy sign bit					*/
extern double	logb();		/* exponent extraction				*/
extern double	scalb();	/* exponent adjustment				*/

extern double	exp();		/* exponential						*/
extern double	expm1();	/* exp(x)-1							*/
extern double	log();		/* natural logarithm				*/
extern double	log10();	/* logarithm to base 10				*/
extern double	log1p();	/* log(1+x)							*/
extern double	pow();		/* exponential x**y					*/

#ifndef MAXDOUBLE

#define BITS(type)	(8 * (int)sizeof(type))

#define MAXDOUBLE	1.79769313486231470e+308
#define MAXFLOAT	((float)3.40282346638528860e+38)
#define MINDOUBLE	4.94065645841246544e-324
#define MINFLOAT	((float)1.40129846432481707e-45)

#define DMINEXP	(-(DMAXEXP + DSIGNIF - 4))
#define FMINEXP	(-(FMAXEXP + FSIGNIF - 4))

#define DSIGNIF	(BITS(double)-11)
#define FSIGNIF	(BITS(float)-8)

#define DMAXEXP	(1 << 11 - 1)
#define FMAXEXP	(1 << 8 - 1)

#endif