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[Octave-bug-tracker] [bug #52004] assert with tolerance


From: Ernst Reissner
Subject: [Octave-bug-tracker] [bug #52004] assert with tolerance
Date: Tue, 12 Sep 2017 19:35:31 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:51.0) Gecko/20100101 Firefox/51.0

URL:
  <http://savannah.gnu.org/bugs/?52004>

                 Summary: assert with tolerance
                 Project: GNU Octave
            Submitted by: ernstreissner
            Submitted on: Tue 12 Sep 2017 11:35:30 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: ernstreissner
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

assert(3, 3.1,0.1) yields 


error: ASSERT errors for:  assert (3,3.1,0.1)

  Location  |  Observed  |  Expected  |  Reason
     ()           3           3.1        Abs err 0.1 exceeds tol 0.1


although 0.1 does not exceed 0.1. 
In my opinion, an error shall be raised only if deviation exceeds tolerance.
not if deviation equals tolerance. 

Note that this form of assertion is typical for octave 
and has no counterpart in matlab. 




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