06-22-2026, 08:35 AM
Dr. Geo
Summary
Dr GEO is a free and open-source interactive geometry program from the GNU project that allows users to create, explore, and manipulate dynamic geometric sketches while respecting mathematical constraints. It is designed for education, helping students from primary school to advanced levels study concepts such as triangles, polygons, transformations, and geometric constructions through visual experimentation.
A distinctive feature of Dr. Geo is its integration of programming: users can create scripted and programmable geometric figures using Smalltalk, study the source code, and even modify or extend the software itself. This makes it not only a geometry learning tool but also an environment that connects mathematics, programming, and scientific modeling.
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