NPI is a simple calculator that supports Reverse Polish
Notation, devised by Jan Lukasiewicz in the Twenties to
allow evaluation of mathematical expressions without
brackets. It supports completion and command history.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.
