Great Software for Plane Geometry

By Xah Lee. Date: . Last updated: .


Spirograph By Nathan Friend e6a8e
[Spirograph By Nathan Friend. At [2016-12-29 best spirograph emulation in JavaScript. source code at ]]


GeoGebra screenshot

GeoGebra is a interactive geometry software. Written by Markus Hohenwarter, started in 2001.

For some sample files of GeoGebra, see deltoid curve, cross curve, nephroid curve .

See also: Visual Dictionary of Special Plane Curves

Geometry Expressions

Geometry Expressions 26072
Geometry Expressions

Cabri II Plus

Cabri II Plus, developed in France. Cabri is one of the early interactive geometry software in the mid 1990s. Cabri has a hardware TI calculator version. A particular feature that is first done by Cabri is that it has conics sections as a primitive. That is, you can have 5 points that defines a conic section, that is any of parabola, ellipse, hyperbola. Dragging any of the points will change the conics section. Any other figures build on the conic section will of course change accordingly. This makes Cabri a excellent choice for doing projective geometry.

Books and Reference

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Math Software

  1. 3dxm-s279x224
    Curves and Surfaces
  2. curved space mac-s245x256
    3D Geometry
  3. GeoGebra screenshot-s274x228
    Plane Geometry
  4. NonEuclid by Joel Castellanos 2018 33578-s274x228
  5. girih tiling app 6792f-s316x198
    Tilings, Patterns
  6. kaleidoTileScreen-s289x217
    Polyhedrons and Polytopes
  7. xaos screen-s271x231
  8. stdmap
    Dynamical Systems
  9. Hexagonal Generative Art by Charlotte Dann 52463-s344x181
    Cellular Automata
  10. chinese checkers 7889e-s315x198
    Math Board Game
  11. peg solitaire puzzle 42044-s296x211
  12. Kawai MP9000 piano dodecahedron-s289x217
    Magic Polyhedrons
  13. Math Software for Programers
  14. Old Math Software