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From: | Marco Caliari |
Subject: | [Octave-bug-tracker] [bug #56665] Incorrect results with ppval and interp1 when using complex query points |
Date: | Thu, 25 Jul 2019 14:14:11 -0400 (EDT) |
User-agent: | Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0 |
Update of bug #56665 (project octave): Item Group: Incorrect Result => Feature Request _______________________________________________________ Follow-up Comment #4: The result of interp1 is not a differentiable function. You should not ask for the derivative between consecutive intervals. A part from those points, it is a polynomial which is safe to evaluate at complex points, with the note that the interval of reference is chosen according to the real part of the query point. I think that the hints in the original submission should fix the problems there observed. _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/bugs/?56665> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/
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