[Octave-bug-tracker] [bug #49846] ode45 initial call to event function uses wrong time value

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?49846>

                 Summary: ode45 initial call to event function uses wrong time
value
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Thu 15 Dec 2016 06:14:30 AM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: BP Minaker
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

If ode45 is used with an optional event function to check for stopping
conditions, the very first call to the event function, before the solution
process actually gets underway, is called with the end time of the solution
interval rather than the start time.    I'm pretty sure that this is not the
intended behaviour.  It can lead to incorrect event function value and early
stopping of solver.




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