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Don't throw an error if the output buffer had no room
[ghc-base.git]
/
Data
/
Complex.hs
diff --git
a/Data/Complex.hs
b/Data/Complex.hs
index
bbc8a07
..
6965547
100644
(file)
--- a/
Data/Complex.hs
+++ b/
Data/Complex.hs
@@
-198,4
+198,4
@@
instance (RealFloat a) => Floating (Complex a) where
asinh z = log (z + sqrt (1+z*z))
acosh z = log (z + (z+1) * sqrt ((z-1)/(z+1)))
- atanh z = log ((1+z) / sqrt (1-z*z))
+ atanh z = 0.5 * log ((1.0+z) / (1.0-z))