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Harmonic Analysis
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Demonstrations 21  40 of 45
Sums of Sine Waves with Several Step Sizes (Sawtooth or Square Approximations)
Haar Functions
Visualizing the Poisson Kernel
Numerical Approximation of the Fourier Transform by the Fast Fourier Transform (FFT) Algorithm
Cesàro Summation
Laser Diffraction Pattern
Discrete Fourier Sine and Cosine Transforms
Fourier Synthesis for Selected Waveforms
Modulaciones AM (Spanish)
Examples of Fourier Series
Cesàro Sums of Some Unit Sequences
Gibbs Phenomena for 1D Fourier Series
Representations of the Dirac Deltafunction
Amplitude Modulation
Sounds from Amplitude and Frequency
Approximation of Discontinuous Functions by Fourier Series
Trigonometric Sums as Parametric Curves
Extremal Trigonometric Polynomials
The Sound of Sine Waves
Fractional Fourier Transform
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