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.
CUPS provides a portable printing layer for UNIX®-based operating systems. It was developed by Easy Software Products and is now owned and maintained by Apple Inc. to promote a standard printing solution. It is the standard printing system in Mac OS® X and most Linux® distributions.