In last years Caius Engineer we had an article on the Scientific Graphics Package, GLE.
This is a public domain program for drawing diagrams and graphs. Any of you who used this may like to know that it has now been extended to cover polar co-ordinate plots, graded colour fills, and various other features. Some of these are shown in the sample below. Copies of GLE can be downloaded from:
http://www.cai.cam.ac.uk/people/dgi/
The latest update will be found in GLEFix2.zip
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