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Pi is a mathematical constant representing the ratio of a circle’s circumference to its diameter, approximately equal to 3.14159. It is an irrational number, meaning it cannot be expressed exactly as a fraction, and its decimal expansion goes on forever without repeating. Pi appears in countless formulas across mathematics and physics, from calculating areas and volumes of circular shapes to describing wave patterns and the behavior of pendulums. Despite its simple definition, pi holds deep sign
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