List of periodic functions

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. A definition is given for some of the following functions, though each function may have many equivalent definitions.

This list is incomplete; you can help by expanding it.

Notes
  1. Formulae are given as Taylor series or derived from other entries.
  1. http://web.mit.edu/jorloff/www/18.03-esg/notes/fourier-tan.pdf
  2. Papula, Lothar (2009). Mathematische Formelsammlung: für Ingenieure und Naturwissenschaftler. Vieweg+Teubner Verlag. ISBN 978-3834807571.
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