Signals and Sinusoids

This is an evaluated Mathematica notebook. Since the notebook is intended to be interactive, it may be helpful to also view the unevaluated version

by David Messerschmitt

What is a signal?

What is a sinusoid?

Modulation of a sinusoid

Why are sinusoids important?

Audio demonstration: frequency, phase, frequency modulation

Superposition of sinusoids: frequency domain

Periodic signals

Audio demonstration: superposition of sinusoids

Key points you have learned

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