--- On Sun, 11/14/10, Mario Rodriguez <biomates at telefonica.net> wrote:
> From: Mario Rodriguez <biomates at telefonica.net>
> Subject: Re: [Maxima] problems with proportional plots
> To: "James Redford" <jrredford at yahoo.com>
> Cc: maxima at math.utexas.edu
> Date: Sunday, November 14, 2010, 3:54 AM
> El s?b, 13-11-2010 a las 10:36
> -0800, James Redford escribi?:
>
>
> > When I try the below example that you gave with the
> wgnuplot.exe that comes with the above Maxima version, it
> comes out non-proportional as an ellipse with the verticle
> axis shorter.
> >
> > However, if I use the wgnuplot.exe Version 4.4
> patchlevel 2 as distributed from the Gnuplot website, it
> comes out proportional as a circle.
> >
>
> Thanks for checking it. The curious fact is that with
> version 4.2.3 I
> get the proportional circle.
>
> It would be great if the Windows packager could build
> Maxima with the
> newest Gnuplot. Version 4.2.3 is more than two years old.
>
> --
> Mario
I just tried the same example with the wgnuplot.exe Version 4.2 patchlevel 3 as distributed in the gp423win32.zip archive file from the Gnuplot SourceForge project page. It does the same as with the Maxima 5.22.1 Windows distribution: it comes out non-proportional as an ellipse with the verticle axis shorter.
So I agree with you, Mario: it would be nice if the next Windows release of Maxima comes with the newest Gnuplot.
For those new to the discussion, the following is the example I am referring to:
gnuplot> set parametric
dummy variable is t for curves, u/v for surfaces
gnuplot> set size ratio -1
gnuplot> set xrange [-1:1]
gnuplot> set yrange [-1:1]
gnuplot> plot [0:2*pi] sin(t),cos(t)