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From: Johann Klammer <klammerj@NOSPAM.a1.net>
Newsgroups: comp.graphics.apps.gnuplot
Subject: hermite spline?
Date: Thu, 04 Feb 2021 19:17:19 +0100
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Is there a way to smooth with a cubic hermite spline?
I.e. One that matches f and f' at interval bounds.

The manual doesn't really say what's what.