| /** |
| * This file has no copyright assigned and is placed in the Public Domain. |
| * This file is part of the w64 mingw-runtime package. |
| * No warranty is given; refer to the file DISCLAIMER.PD within this package. |
| */ |
| /* catanh.c */ |
| /* |
| Contributed by Danny Smith |
| 2003-10-20 |
| */ |
| |
| #include <math.h> |
| #include <complex.h> |
| |
| /* catanh (z) = -I * catan (I * z) */ |
| |
| double complex catanh (double complex Z) |
| { |
| double complex Tmp; |
| double complex Res; |
| |
| __real__ Tmp = - __imag__ Z; |
| __imag__ Tmp = __real__ Z; |
| Tmp = catan (Tmp); |
| __real__ Res = __imag__ Tmp; |
| __imag__ Res = - __real__ Tmp; |
| return Res; |
| } |