Hyperboloid and projections

Author:Malin Christersson

The blue circle shows the Klein disk end the red circle the Poincaré disk. Move the blue dots to change the Klein line, the corresponding Poincaré line is the red arc.

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Circle Passing Through 3 Points
Triangle with 3 Right Angles
Untitled
Reflection across a line
Making New Year's resolutions for 2026

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Create a Rotation Tessellation using a Triangle
Sector to Cone Lateral Area split screen
lines
คิดเลขเร็ว
Angles, Arcs, and Radii: IM Geo.7.10

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Continuity
Hyperbola
Parametric Curves
Right Triangles
Exponent