Cartoon20215 min720×480

Complex Fourier series animation tracing the letter 'e'

Greg Sepesi

AnimationEducationScience

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About

The animation gives four perspectives of a converging complex Fourier series as more terms are added. 1) The front plane shows a two arm aggregation of series terms where one arm is the sum of the positive rotating terms and the other arm is the sum of the negative rotating terms. 2) The back plane shows a one arm zigzag aggregation of series terms where positive and negative rotating terms are added as pairs producing the zigzag appearance. 3) The intermediate planes (trapezoid baseline) show the frequency and phase information as rotating trapezoids representing individually scaled and rotating terms of the complex geometric series. 4) The audio is what those rotating trapezoids would sound like if they were rotating 3530 times faster.

Human-made No record of this work says a model made it. What this means.

Archive
Wikimedia Commons, in Wikimedia Commons
Licence or status
CC BY 4.0, as the Wikimedia Commons states it.
Rights statement
Creative Commons Attribution 4.0
Credit
Greg Sepesi
Who can watch
The archive gives no rating. Invisible Network shows it to Kids profiles and older, judged from its collection and subjects. How films are placed