38 lines
596 B
C
38 lines
596 B
C
|
/*
|
||
|
|
cacoshf.c
|
||
|
|
Contributed by Danny Smith
|
||
|
|
2004-12-24
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <math.h>
|
||
|
|
#include <complex.h>
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
/* cacoshf (z) = I * cacos (z) */
|
||
|
|
float complex cacosh (float complex Z)
|
||
|
|
{
|
||
|
|
float complex Tmp;
|
||
|
|
float complex Res;
|
||
|
|
|
||
|
|
Tmp = cacosf (Z);
|
||
|
|
__real__ Res = -__imag__ Tmp;
|
||
|
|
__imag__ Res = __real__ Tmp;
|
||
|
|
return Res;
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
/* cacosh (z) = I * cacos (z) = I * (pi/2 - casin (z)) */
|
||
|
|
|
||
|
|
float complex cacoshf (float complex Z)
|
||
|
|
{
|
||
|
|
float complex Tmp;
|
||
|
|
float complex Res;
|
||
|
|
|
||
|
|
Tmp = casinf (Z);
|
||
|
|
__real__ Res = __imag__ Tmp;
|
||
|
|
__imag__ Res = M_PI_2 - __real__ Tmp;
|
||
|
|
return Res;
|
||
|
|
}
|
||
|
|
#endif
|