Byrne's Euclid
(news.ycombinator.com)
1.
2.
Binary GCD
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3.
Algebraic topology: knots links and braids
(news.ycombinator.com)
5.
An interactive version of Byrne's The Elements of Euclid (1847)
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6.
Dancing around the rhythm space with Euclid
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7.
What is a manifold?
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