Tijl Coosemans db7548d040 Fix some exceptional cases where the sign of the result is unspecified
but must still satisfy ccosh(conj(z)) == conj(ccosh(z)) and ccosh(-z) ==
ccosh(z).

In collaboration with:	bde
2015-06-15 20:11:06 +00:00
..
2014-12-16 09:21:56 +00:00
2014-12-16 09:21:56 +00:00
2015-04-26 11:35:36 +00:00
2014-07-07 00:27:09 +00:00
2015-06-13 19:20:56 +00:00
2014-09-15 23:21:57 +00:00