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Trigonometry, in the form of a table of chord lengths in a circle, was probably used by Claudius Ptolemy of Alexandria to obtain the value of π given in the Almagest (circa 150 CE). [ 68 ] Advances in the approximation of π (when the methods are known) were made by increasing the number of sides of the polygons used in the computation.
The number π (/ p aɪ /; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159.The number π appears in many formulae across mathematics and physics.
Aphrodite (/ ˌ æ f r ə ˈ d aɪ t iː / ⓘ, AF-rə-DY-tee) [a] is an ancient Greek goddess associated with love, lust, beauty, pleasure, passion, procreation, and as her syncretized Roman goddess counterpart Venus, desire, sex, fertility, prosperity, and victory.
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