# Sums of Sine Waves with Several Step Sizes (Sawtooth or Square Approximations)

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This Demonstration shows the functions , for values of that run from 1 to the maximum frequency in steps of size in the bottom plot, and their sum in the top plot. This illustrates an approximation of standard waves (sawtooth, square, etc.) by adding sine waves (Fourier method).

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Contributed by: Arthur Stammet (March 2011)

Open content licensed under CC BY-NC-SA

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