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欧博abgDefinition, Symbol, Number, & Facts

时间:2025-07-25 10:56来源: 作者:admin 点击: 4 次
Pi, in mathematics, is the ratio of the circumference of a circle to its diameter. Because pi is irrational (not equal to the ratio of any two whole n

Pi is used for solving problems involving the lengths of arcs or other curves, the areas of ellipses, sectors, and other curved surfaces, and the volumes of many solids. It is also used in various formulas of physics and engineering to describe the motion of pendulums, the vibration of strings, and alternating electric currents.

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