GeoGebra
GeoGebra
Fourier series and Discrete Fourier transform
Geometric interpretation
Fourier series and epicycles
Approximating curves
Epicycles tracing out closed curves
GGB Script
Fourier series and Discrete Fourier transform
Author:
Juan Carlos Ponce Campuzano
A set of animation showing a geometric representation of the the Discrete Fourier Transform and how to use it to draw closed curves with epicycles.
Table of Contents
Geometric interpretation
Discrete Fourier Transform: A geometric interpretation
Fourier series and epicycles
The Fourier Transform
Fourier Transform animation
Fourier Transform animation: Signal
Fourier Transform animation: Saw tooth
Approximating curves
Drawing an elephant with four parameters
Fourier transform: Circle - Cat
Discrete Fourier Transform: Trigonometric interpolation
Epicycles tracing out closed curves
Epicycles tracing a square closed curve
Drawing a square with epicycles
Drawing a Cat with epicycles
Drawing Pi with epicycles
Discrete Fourier Transform: GeoGebra logo
Drawing a T-Rex with epicycles
The animated curves
GGB Script
Discrete Fourier Transform & Epicycles: Scripting
Next
Discrete Fourier Transform: A geometric interpretation
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Congruence
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