29 lines
467 B
C
29 lines
467 B
C
|
|
/* @(#)z_cos.c 1.0 98/08/13 */
|
|
/******************************************************************
|
|
* Cosine
|
|
*
|
|
* Input:
|
|
* x - floating point value
|
|
*
|
|
* Output:
|
|
* cosine of x
|
|
*
|
|
* Description:
|
|
* This routine returns the cosine of x.
|
|
*
|
|
*****************************************************************/
|
|
|
|
#include "fdlibm.h"
|
|
#include "zmath.h"
|
|
|
|
#ifndef _DOUBLE_IS_32BITS
|
|
|
|
double
|
|
cos (double x)
|
|
{
|
|
return (sine (x, 1));
|
|
}
|
|
|
|
#endif /* _DOUBLE_IS_32BITS */
|