ctioga2 is a command-line plotting utility. It
enables users to make publication-quality plots of
data and mathematical functions quickly. It is a complete rewrite of the old ctioga, and is much more flexible, with quite a few additional features.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This release has many new features, such as a comfortable way to organize several different plots on one object, the ability to make free-form graphs, and much more control in the look of axes, including the ability to display axes with a non-linear mapping. Several bugs have been fixed.