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Greek Mathematics
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Demonstrations 1  20 of 82
Doubling a Distance with a Compass
Updated this month
Proposition 30, Book XI, Euclid's Elements
Proposition 29, Book XI, Euclid's Elements
Hirano's Construction of a Regular Pentagon
Proposition 7, Book XII, Euclid's Elements
Three Proofs of the Pythagorean Theorem
The Euclidean Algorithm and Simple Continued Fractions
Dudeney's Proof of the Pythagorean Theorem
Equality of a Segment and an Arc in Archimedes's Spiral
Nicomedes's Mechanism for Constructing a Conchoid
Primitive Pythagorean Triples on a Curvilinear Grid Defined by Euclid's Formula
Archimedes' Approximation of Pi
Antikythera Mechanism
The Eratosthenes Machine for Finding the Cube Root of Two
Trisection by Sliding a Line
Pascal's Angle Trisection
Solve the Loculus of Archimedes
Hippopede of Eudoxus
Areas of the Lens and Two Lunes of Two Intersecting Circles
Primitive Pythagorean Triples 4: Ordered Tree Matrices
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