List of periodic functions

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This is a list of some well-known periodic functions.

  • The constant function f (x) = c, where c is independent of x, is periodic with any period, but lacks a fundamental period.

Real-valued functions[edit]

Trigonometric functions[edit]

Sinus-like functions[edit]

Non-smooth functions[edit]

Vector-valued functions[edit]

Complex-valued functions[edit]

  • cis(x) = cos(x) + isin(x) = eix