[Octave-bug-tracker] [bug #47654] odeset does not allow zero value for tolerance

[Carlo de Falco]

URL:
  <http://savannah.gnu.org/bugs/?47654>

                 Summary: odeset does not allow zero value for tolerance
                 Project: GNU Octave
            Submitted by: cdf
            Submitted on: Sat 09 Apr 2016 06:11:36 AM CEST
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: In Progress
             Assigned to: cdf
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

In Matlab, odeset allows to set either 'AbsTol' or 'RelTol'
to 0, which is useful in order to disable one of the two 
error checks.

In Octave this is not allowed:


>> odeset ('reltol', 0)
error: odeset: invalid value assigned to field 'RelTol'
error: called from
    ode_struct_value_check at line 227 column 13
    odeset at line 208 column 5






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