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[Octave-bug-tracker] [bug #59615] feature request for sinpi, cospi, yyax


From: Rik
Subject: [Octave-bug-tracker] [bug #59615] feature request for sinpi, cospi, yyaxis functions
Date: Mon, 7 Dec 2020 23:21:16 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.66 Safari/537.36

Follow-up Comment #6, bug #59615 (project octave):

I already have a sinpi implementation.  I'm working on adapting cospi right
now.  

While implementing sinpi I found that Octave was not very accurate for large
values of the input argument for sind and related functions.  In once sense,
it was useful to be forced to look at this more closely.  I've already checked
in a fix for sind here:
http://hg.savannah.gnu.org/hgweb/octave/rev/ee20ff0ceb60.  I'll get to the
other functions later.

yyaxis is going to be very difficult to implement in Octave at the moment as
it relies on a dual axis graphics primitive object that Octave has no analog
of.

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