| Standards / Extensions | C or C++ | Dependencies |
|---|---|---|
C/C++ DFP |
both | z/OS V1.10 |
#define __STDC_WANT_DEC_FP__
#include <math.h>
_Decimal32 tanhd32(_Decimal32 x);
_Decimal64 tanhd64(_Decimal64 x);
_Decimal128 tanhd128(_Decimal128 x);
_Decimal32 tanh(_Decimal32 x); /* C++ only */
_Decimal64 tanh(_Decimal64 x); /* C++ only */
_Decimal128 tanh(_Decimal128 x); /* C++ only */Calculates the hyperbolic tangent of x, where x is expressed in radians.
Returns the calculated value of the hyperbolic tangent of x.
If the result underflows, the function returns 0 and sets the errno to ERANGE.
⁄* CELEBT23
This example illustrates the tanhd64() function.
This example computes x as the hyperbolic tangent of PI⁄4.
*⁄
#define __STDC_WANT_DEC_FP__
#include <math.h>
#include <stdio.h>
int main(void)
{
_Decimal64 pi, x;
pi = 3.1415926DD;
x = tanhd64(pi⁄4.0DD);
printf("tanhd64( %Df ) = %Df\n", pi⁄4.0DD, x);
}