[Bug 38266] New: Precision of math functions needs to be improved

https://bugs.winehq.org/show_bug.cgi?id=38266

Bug ID: 38266
           Summary: Precision of math functions needs to be improved
           Product: Wine
           Version: 1.7.39
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 51094
  --> https://bugs.winehq.org/attachment.cgi?id=51094
Testcase showing the precision of exp() function

The math functions don't provide enough precision, which causes part of the
bugs 37149 and 37150.
Attached is a testcase, shows the exp() function holds about 13 precision
digits while there are about 16 in Windows/Linux.