a versatile Integrated Development Environment (IDE) for C and C++ on GNU/Linux. It has been written for GTK/GNOME and features a number of advanced programming facilities. (same as http://anjuta.org/)
a tool to optimize the placement of rectangles in a band of semi-infinite size (2D bin packing problem). It can be useful for cutting stocks in trucks and factories.
a practical calculating tool and programming language designed to help us all to better understand the world around us, to help us get calculations right without getting bogged down in the mechanics, and to make a tool that's really useful in the real wor