[GHC] #8532: Hyperbolic arc cosine fails on (-1) :: Complex r.

[GHC]

#8532: Hyperbolic arc cosine fails on (-1) :: Complex r.
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        Reporter:  leftaroundabout   |                Owner:  alekzcb
            Type:  bug               |               Status:  new
        Priority:  low               |            Milestone:  8.4.1
       Component:  Core Libraries    |              Version:  7.6.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:  numrun016
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3916
       Wiki Page:                    |
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Changes (by bgamari):

 * testcase:  acosh(-1) :: Complex Double => numrun016
 * differential:   => Phab:D3916
 * milestone:   => 8.4.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8532#comment:13>
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