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Rewrite of odeplot


From: Rik
Subject: Rewrite of odeplot
Date: Mon, 17 Oct 2016 14:19:51 -0700

10/17/16

Carlo,

I rewrote odeplot for improved performance
(http://hg.savannah.gnu.org/hgweb/octave/rev/0128795eeac6).  Using the test
code

tic; demo ("odeplot", 1); toc

the previous running time was 36 seconds.  The new running time is 11.8
seconds or a 3X speedup.  There's still one or two more tweaks I can do,
but I need some information from Matlab.

Incidentally, I noticed that we use the Van der Pol equation as an
example.  The function handle is @fvdb.  Shouldn't this be @fvdp?  Maybe a
search and replace in scripts/ode is necessary.

Cheers,
Rik



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