1. This computer visualization activity is designed to help upper-division undergraduate students understand superposition and Fourier series.
  2. Students used Maple/Mathematica to guess the terms of a Fourier series and compared to a plot of an assigned function that was the superposition of two or more harmonic functions.
  3. The wrap-up discussion focuses on the idea of superposition and introduces students to the idea of Fourier Expansion.

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