| |
| /* @(#)z_acosf.c 1.0 98/08/13 */ |
| /****************************************************************** |
| * Arccosine |
| * |
| * Input: |
| * x - floating point value |
| * |
| * Output: |
| * arccosine of x |
| * |
| * Description: |
| * This routine returns the arccosine of x. |
| * |
| *****************************************************************/ |
| |
| #include "fdlibm.h" |
| #include "zmath.h" |
| |
| float |
| _DEFUN (acosf, (float), |
| float x) |
| { |
| return (asinef (x, 1)); |
| } |
| |
| #ifdef _DOUBLE_IS_32BITS |
| double acos (double x) |
| { |
| return (double) asinef ((float) x, 1); |
| } |
| |
| #endif /* defined(_DOUBLE_IS_32BITS) */ |
