FFT vs DFT of a square wave.

Benchmark comparison of direct DFT and manual radix-2 FFT for a square wave using MATLAB, including tic–toc timing and spectrum validation.

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This submission provides a clear, educational comparison between the Discrete Fourier Transform (DFT) and the Fast Fourier Transform (FFT) using a square wave signal.

Cite As

RAJA KUMAR (2026). FFT vs DFT of a square wave. (https://se.mathworks.com/matlabcentral/fileexchange/182943-fft-vs-dft-of-a-square-wave), MATLAB Central File Exchange. Retrieved .

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.0.0