DescriptionComplex Fourier series animation tracing the letter 'e'.webm
English: 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.
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https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue
the front and back planes show the real and imaginary parts of the sum of the first +/-n terms of the complex Fourier series that has coefficients to converge to a tracing of the letter 'e' (for exponential)