diff options
Diffstat (limited to 'src/complex/catanl.c')
| -rw-r--r-- | src/complex/catanl.c | 38 |
1 files changed, 2 insertions, 36 deletions
diff --git a/src/complex/catanl.c b/src/complex/catanl.c index a9fc02db..cd2d2b00 100644 --- a/src/complex/catanl.c +++ b/src/complex/catanl.c @@ -67,28 +67,6 @@ long double complex catanl(long double complex z) return catan(z); } #else -static const long double PIL = 3.141592653589793238462643383279502884197169L; -static const long double DP1 = 3.14159265358979323829596852490908531763125L; -static const long double DP2 = 1.6667485837041756656403424829301998703007e-19L; -static const long double DP3 = 1.8830410776607851167459095484560349402753e-39L; - -static long double redupil(long double x) -{ - long double t; - long i; - - t = x / PIL; - if (t >= 0.0L) - t += 0.5L; - else - t -= 0.5L; - - i = t; /* the multiple */ - t = i; - t = ((x - t * DP1) - t * DP2) - t * DP3; - return t; -} - long double complex catanl(long double complex z) { long double complex w; @@ -97,30 +75,18 @@ long double complex catanl(long double complex z) x = creall(z); y = cimagl(z); - if ((x == 0.0L) && (y > 1.0L)) - goto ovrf; - x2 = x * x; a = 1.0L - x2 - (y * y); - if (a == 0.0L) - goto ovrf; t = atan2l(2.0L * x, a) * 0.5L; - w = redupil(t); + w = t; t = y - 1.0L; a = x2 + (t * t); - if (a == 0.0L) - goto ovrf; t = y + 1.0L; a = (x2 + (t * t)) / a; - w = w + (0.25L * logl(a)) * I; - return w; - -ovrf: - // FIXME - w = LDBL_MAX + LDBL_MAX * I; + w = CMPLXF(w, 0.25L * logl(a)); return w; } #endif |