[Octave-bug-tracker] [bug #53462] angle(0+xi) producing inaccurate result.

[Dildar Sk]

URL:
  <http://savannah.gnu.org/bugs/?53462>

                 Summary: angle(0+xi) producing inaccurate result.
                 Project: GNU Octave
            Submitted by: hodor123456
            Submitted on: Sun 25 Mar 2018 01:55:31 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Dildar Sk
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

In MATLAB,


>> angle(i)

ans =

    1.5708

>> angle(10i)

ans =

    1.5708


In Octave,


>> angle(i)
ans = 0
>> angle(10i)
ans =  1.5708


angle(x+iy) is equal to,atan(y/x),
so,angle(0+iy)=atan(y/0)=atan(inf)=pi/2.
Definite the answer should be like MATLAB 1.5708.




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