Saturday, May 21

What numbers did the ancient Greeks use when making their amazing discoveries

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  • BBC World News


Pythagoras (right) using a tally table, competes against Boethius (Boece) using speed algorithms in calculation. By Margarita Philosophica. (Basel, 1508)

Thales of Miletus explained the solstice and equinox, predicted eclipses, and invented abstract geometry.

Eudoxus of Cnido, in addition to being the father of mathematical astronomy, devised a theory of proportion, which allowed irrational numbers, a concept of magnitude and a method to find areas and volumes of curvilinear objects.

Hipparchus produced a table of chords, an early trigonometric table.

Euclid wrote a textbook on algebra, number theory, and geometry that is still relevant today.

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