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| From: | Markus Mützel |
| Subject: | [Octave-bug-tracker] [bug #60240] Jacobian for ode15s as matrix fails |
| Date: | Sat, 20 Mar 2021 09:22:06 -0400 (EDT) |
| User-agent: | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36 Edg/89.0.774.57 |
Update of bug #60240 (project octave):
Status: None => Confirmed
Operating System: GNU/Linux => Any
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Follow-up Comment #2:
@hg200: Both solutions you propose sound fine to me.
Because `__ode15__` might be called by other functions as well (and IIRC it is
used by at least one Octave Forge package), I'm leaning towards defining a
reasonable default value for the mass matrix in that function (maybe using
`octave::identity_matrix`).
Maybe the `set_jacobian` function would be a good place to do that?
Could the same occur for sparse matrices?
Could you please prepare a changeset?
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