[Octave-bug-tracker] [bug #57838] The cos function is returning wrong values at few parameters.

[Gurjeet Singh]

URL:
  <https://savannah.gnu.org/bugs/?57838>

                 Summary: The cos function is returning wrong values at few
parameters.
                 Project: GNU Octave
            Submitted by: gurjeet
            Submitted on: Mon 17 Feb 2020 04:14:07 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: 5.2.0
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

'cos' is a built-in function from the file libinterp/corefcn/mappers.cc.


cos(pi*(1/2))
ans =    6.1232e-17

The actual ans should be 0;





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