cosd32(), cosd64(), cosd128() — Calculate cosine
Standards
| Standards / Extensions | C or C++ | Dependencies |
|---|---|---|
| C/C++ DFP | both | z/OS® V1.8 |
Format
#define __STDC_WANT_DEC_FP__
#include <math.h>
_Decimal32 cosd32(_Decimal32 x);
_Decimal64 cosd64(_Decimal64 x);
_Decimal128 cosd128(_Decimal128 x);
_Decimal32 cos(_Decimal32 x); /* C++ only */
_Decimal64 cos(_Decimal64 x); /* C++ only */
_Decimal128 cos(_Decimal128 x); /* C++ only */General description
Calculates the cosine
of x. The value x is
expressed in radians.
Notes:
- To use IEEE decimal floating-point, the hardware must have the Decimal Floating-Point Facility installed.
- These functions work in IEEE decimal floating-point format. See "IEEE Decimal Floating-Point" for more information.
Returned value
Returns the calculated value.
If x is outside prescribed limits, the value is not calculated. Instead, the function returns 0 and sets errno to EDOM.
Example
/* CELEBC48
This example illustrates the cosd128() function.
*/
#define __STDC_WANT_DEC_FP__
#include <math.h>
#include <stdio.h>
int main(void)
{
_Decimal128 x, y;
x = 7.2DL;
y = cosd128(x);
printf("cosd128(%DDf) = %DDf\n", x, y);
}