KSEG

KSEG is a GNU/Linux program for exploring Euclidean geometry. You create a construction, such as a triangle with a circumcenter, and as you drag verteces of the triangle, the circumcenter moves in real time.

Other features include:

• Fast core which supports large constructions
• Supports multiple languages
• Construction of points, segments, rays, lines, circles, and arcs
• Make measurements
• Transformations (rotation, translation, scaling, reflection)
• Construction of adaptively sampled loci for better quality and speed
• Reverse dragging
• Infinite undo/redo
• Ability to easily redefine points to “edit” drawings
• Editable scripting/macro with support for recursion
• Pretty formulas for calculations-with libkformula
• Small files
• Quick play—one step to play any construction from a directory
• Calculation based transformations
• Improved selection-to-given matching in constructions

 2007–2009 Alexey Beshenov.
Contact: al@cadadr.org.