KSEG (Knowledge-based Systems Engineering Group) is an online platform that provides educational and reference materials related to knowledge-based systems engineering. It offers a variety of services and resources, such as webinar seminars, tutorials, and reference materials. KSEG also provides access to a wide range of tools and resources, including a knowledge-based systems engineering guide and an extensive library of engineering resources. Additionally, the platform features a discussion board where users can ask questions and share their experiences. KSEG also offers a wealth of resources, including a library of engineering books, case studies, and sample projects. This platform provides users with the opportunity to learn more about knowledge-based systems engineering and to become experts in the field.
GeoGebra
GnuPlot
Graph
The Geometer's Sketchpad
Lybniz
Apollonius
Grapher
Graphmatica
Latest discontinued version is 4.4.2 (2013) https://sourceforge.net/projects/graph/files/Graph/