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Non si est dare primum motum esse o se del mezzo cerchio far si puote triangol sì c'un recto nonauesse. – Dante's Paradiso, Canto 13, lines 100–102 No
Non si est dare primum motum esse o se del mezzo cerchio far si puote triangol sì c'un recto nonauesse. – Dante's Paradiso, Canto 13, lines 100–102 Non si est dare primum motum esse, Or if in semicircle can be made Triangle so that it have no right angle. – English translation by Henry Wadsworth Longfellow
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A European and an Arab practicing geometry in the 15th century
A European and an Arab practicing geometry in the 15th century
Woman teaching geometry. Illustration at the beginning of a medieval translation of Euclid's Elements, (c. 1310).
Woman teaching geometry. Illustration at the beginning of a medieval translation of Euclid's Elements, (c. 1310).
Visual checking of the Pythagorean theorem for the (3, 4, 5) triangle as in the Zhoubi Suanjing 500–200 BC. The Pythagorean theorem is a consequence o
Visual checking of the Pythagorean theorem for the (3, 4, 5) triangle as in the Zhoubi Suanjing 500–200 BC. The Pythagorean theorem is a consequence of the Euclidean metric.
Quintic Calabi–Yau threefold
Quintic Calabi–Yau threefold