# Fourier Series Visualization

Any periodic function can be represented as a sum of sine functions of different frequencies

> Canonical page: https://elysiatools.com/en/visualizations/fourier-series

- **Category:** Math

## Overview

Interactive Fourier Series visualization showing how any periodic function can be represented as a sum of sine functions of different frequencies. Features rotating epicycles (circles) connected head-to-tail, DFT for custom drawn curves, adjustable number of terms, and real-time animation. Explore square waves, sawtooth waves, or draw your own closed curve

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