Ellipses
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Deutsch: Ellipsen sind mathematische Objekte
English: Ellipses are mathematical objects
- Blue ellipse
- Ellipse formed out of a conic section
- different types of ellipses, animation and description
- Parametric ellipse (in red)
- Archimedes Trammel - ellipsograph for drawing
- Bullshit grinder - ellipsograph for construction
- Proof of a property of ellipse tangents
- Basic form of a ellipse, media file