Poincaré disk
The Poincaré disk: a model for hyperbolic geometry.
85 total views, 1 views today
The Poincaré disk: a model for hyperbolic geometry.
85 total views, 1 views today
A digital spirograph
89 total views, 2 views today
The 11 nets of a cube.
117 total views, 3 views today