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Euclidean geometry in octave

From: Dirk Laurie
Subject: Euclidean geometry in octave
Date: Wed, 7 Oct 1998 09:26:10 +0200 (SAT)

I often need drawings for Euclidean geometry problems in 
documents.  I don't like any of the software I've seen, so
I would like to do it in Octave.

  1. Am I re-inventing the wheel?  In other words, does there
     exist a perfectly reasonable Octave package which already 
     does this?
  2. I've tried a few simple things, and have immediately come
     up against a plotting problem: I can't find a plotting
     command that forces the scales on the two axes to be the
     same.  For example, what looked like perfectly good circles
     and squares on my X11 screen come out as ellipses and 
     parallelograms on Postscript output. So:
       How does one force a 2D plot to have equal scales
       on both axes?

Dirk Laurie 

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