GDL is a free/libre/open source incremental compiler compatible with IDL
(Interactive Data Language) and to some extent with PV-WAVE. Together with its
library routines it serves as a tool for data analysis and visualization in such
disciplines as astronomy, geosciences and medical imaging.

IDL is a registered trademark of Harris Geospatial Solutions. PV-WAVE is a
product of Rogue Wave Software.

WWW: https://github.com/gnudatalanguage/gdl