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Fundamental Period

Definition: A function f is said to be periodic with period T > 0 if the domain of f contains x+T whenever it contains x, and if f(x+T) = f(x) for every value of x. The smallest value of T for which the above equation holds is called the fundamental period of f.
Source: Elementary Differential Equations and Boundary Value Problems  William Boyce & Richard DiPrima

Listed under: Periodic Function, Differential Equations
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