Periodic functions are functions that regularly repeat. Periodic functions are fundamental to trigonometry and are also used throughout analysis of waves and signals. Wolfram|Alpha can compute the periodicity and root-mean-square (RMS) amplitude of periodic functions.
Find the period of a function.
Compute the period of a periodic function:
Find periods of a function of several variables:
Calculate the root-mean-square (RMS) value of a periodic function.