mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-30 19:53:46 +00:00
30 lines
523 B
C
30 lines
523 B
C
|
|
||
|
|
/* @(#)z_log.c 1.0 98/08/13 */
|
||
|
|
/******************************************************************
|
||
|
|
* Logarithm
|
||
|
|
*
|
||
|
|
* Input:
|
||
|
|
* x - floating point value
|
||
|
|
*
|
||
|
|
* Output:
|
||
|
|
* natural logarithm of x
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* This routine returns the natural logarithm of x.
|
||
|
|
*
|
||
|
|
*****************************************************************/
|
||
|
|
|
||
|
|
#include "fdlibm.h"
|
||
|
|
#include "zmath.h"
|
||
|
|
|
||
|
|
#ifndef _DOUBLE_IS_32BITS
|
||
|
|
|
||
|
|
double
|
||
|
|
_DEFUN (log, (double),
|
||
|
|
double x)
|
||
|
|
{
|
||
|
|
return (logarithm (x, 0));
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* _DOUBLE_IS_32BITS */
|