Asymptote

Asymptote 2.44

Free
Provides a natural coordinate-based framework for technical drawing.
 
2.44 (See all)

Asymptote is a powerful descriptive vector graphics language that provides a natural coordinate-based framework for technical drawing. Labels and equations are typeset with LaTeX, for high-quality PostScript output.

A major advantage of Asymptote over other graphics packages is that it is a programming language, as opposed to just a graphics program.

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