FourierSeries

Education

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Fourier Series Lab is an interactive learning app for exploring how periodic signals are rebuilt with Fourier series. Choose preset waveforms—square, triangle, or sawtooth—or enter your own expression using standard math syntax such as sin(x) + 0.5*sin(3*x). The app numerically integrates over one period to compute coefficients a₀, aₙ, and bₙ, then plots the original function alongside the partial sum so you can see convergence in real time.  On the Lab tab, adjust the number of terms with a slider or stepper, tune integration accuracy, and play an animation that steps through harmonics one by one. Toggle harmonic overlays, residual curves, and live error metrics including mean squared error and maximum absolute error. The Spectrum tab breaks down each harmonic with bar charts for cosine, sine, and magnitude components, plus phase readouts. The Reference tab keeps standard formulas, study notes on topics like the Gibbs phenomenon, and a live coefficient table synced with your current session.

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The developer, TATJANA MIHEJEVA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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Information

Seller
  • TATJANA MIHEJEVA
Size
  • 5.3 MB
Category
  • Education
Compatibility
Requires iOS 14.0 or later.
  • iPhone
    Requires iOS 14.0 or later.
  • iPod touch
    Requires iOS 14.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © FourierSeries
  • Privacy Policy