NetCDF is a format developed at Unidata that was
inspired by the CDF format from NASA. NetCDF
stands for "Network Common Data Form" and is a
self-describing data format, commonly used in
scientific and engineering applications.
RPL/2 (Reverse Polish Lisp/2) is a langage derived from the RPL made by Hewlett-Packard for its HP-28S. It has some extensions (preprocessor, compilated libraries, new functions), a TeX output, and can draw graphics.