# Superposition of Two Sine Waves with Sum and Beats

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This Demonstration shows the sum and the envelope of the beat for two sine waves. You can change the frequencies of either wave or modulate the amplitude or phase of the second wave.

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Contributed by: Arthur Stammet (March 2011)

Open content licensed under CC BY-NC-SA

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"Superposition of Two Sine Waves with Sum and Beats"

http://demonstrations.wolfram.com/SuperpositionOfTwoSineWavesWithSumAndBeats/

Wolfram Demonstrations Project

Published: March 7 2011