A portable, multi-platform, command-line driven graphing utility
A famous scientific plotting package, features include 2D and 3D plotting, a huge number of output formats, interactive input or script-driven options, and a large set of scripted examples.
Pauker is a generic flashcard program written in Java. It uses an innovative combination of ultra-shortterm, shortterm and longterm memory. You can use it to learn all the things you never want to forget, like vocabularies, capitals, important dates,
pfcalc is a pipe friction calculator using the Darcy-Weisbach equation. gpfcalc is a Gtk front-end for pfcalc. Qpfcalc is a Qt front-end for pfcalc.
RPilot is a GPL'ed implementation of the IEEE-standard language PILOT. It is an interpreter written in ANSI C, and will work on any system with a standard C compiler
It is a word puzzle game which can be played online. It is a Java Applet that can show crossword puzzles. The clues of these kind of puzzles are in squares. The applet can be put on a web-page where visitors can solve crossword puzzles interactively.