diff options
Diffstat (limited to 'math/s_casinh.c')
| -rw-r--r-- | math/s_casinh.c | 36 |
1 files changed, 1 insertions, 35 deletions
diff --git a/math/s_casinh.c b/math/s_casinh.c index b493982d88..657e269ac1 100644 --- a/math/s_casinh.c +++ b/math/s_casinh.c @@ -20,7 +20,6 @@ #include <complex.h> #include <math.h> #include <math_private.h> -#include <float.h> __complex__ double __casinh (__complex__ double x) @@ -62,40 +61,7 @@ __casinh (__complex__ double x) } else { - double rx, ix; - __complex__ double y; - - /* Avoid cancellation by reducing to the first quadrant. */ - rx = fabs (__real__ x); - ix = fabs (__imag__ x); - - if (rx >= 1.0 / DBL_EPSILON || ix >= 1.0 / DBL_EPSILON) - { - /* For large x in the first quadrant, x + csqrt (1 + x * x) - is sufficiently close to 2 * x to make no significant - difference to the result; avoid possible overflow from - the squaring and addition. */ - __real__ y = rx; - __imag__ y = ix; - res = __clog (y); - __real__ res += M_LN2; - } - else - { - __real__ y = (rx - ix) * (rx + ix) + 1.0; - __imag__ y = 2.0 * rx * ix; - - y = __csqrt (y); - - __real__ y += rx; - __imag__ y += ix; - - res = __clog (y); - } - - /* Give results the correct sign for the original argument. */ - __real__ res = __copysign (__real__ res, __real__ x); - __imag__ res = __copysign (__imag__ res, __imag__ x); + res = __kernel_casinh (x, 0); } return res; |