newlib-cygwin/newlib/libm/mathfp/sf_cosh.c

34 lines
605 B
C

/* @(#)z_coshf.c 1.0 98/08/13 */
/******************************************************************
* Hyperbolic Cosine
*
* Input:
* x - floating point value
*
* Output:
* hyperbolic cosine of x
*
* Description:
* This routine returns the hyperbolic cosine of x.
*
*****************************************************************/
#include "fdlibm.h"
#include "zmath.h"
float
_DEFUN (coshf, (float),
float x)
{
return (sinehf (x, 1));
}
#ifdef _DOUBLE_IS_32BITS
double cosh (double x)
{
return (double) sinehf ((float) x, 1);
}
#endif /* defined(_DOUBLE_IS_32BITS) */