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  1. Haff Ellipsograph Nr. 97 (MathsJam2015)
    1. What I bought on ebay for £10
    2. Haff Ellipsograph Nr. 97
    3. Trammel of Archimedes by Ryan Hirst
    4. Haff Ellipsograph
    5. Can you really draw all these?
    6. Haff Ellipsograph
    7. van Schooten's Ellipsograph (with non-perpendicular axes)
    8. K'NEX Ellipsograph
    9. Lego Ellipsograph
    10. The End

Haff Ellipsograph Nr. 97 (MathsJam2015)

Author:Michael Borcherds

  • What I bought on ebay for £10

  • Haff Ellipsograph Nr. 97

  • Trammel of Archimedes by Ryan Hirst

  • Haff Ellipsograph

  • Can you really draw all these?

  • Haff Ellipsograph

  • van Schooten's Ellipsograph (with non-perpendicular axes)

  • K'NEX Ellipsograph

  • Lego Ellipsograph

  • The End

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What I bought on ebay for £10

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