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Optimized convolution by FFT / complex multiplication / IFFT

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#convolution #fast-fourier-transform
49
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Artificially improving the spectral power of a low frequency signal

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#fast-fourier-transform
1.8k
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Multivariate Polynomial Multiplication using Fast Fourier Transform (FFT)

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#polynomials #fourier-analysis #matlab #fourier-transform #fast-fourier-transform
211
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Best curve fitting

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#least-squares #fast-fourier-transform #python
528
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What is the correct order of DFT values when executing the DIT FFT algorithm?

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#fourier-transform #wolfram-alpha #sagemath #fast-fourier-transform
705
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Convolution of function with singularity

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#convolution #singularity #cauchy-principal-value #fast-fourier-transform
631
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Is the DFT really the DTFS?

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#fourier-analysis #fourier-series #fast-fourier-transform
95
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Sample equally a set of discontinuous points

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#interpolation #sampling #fast-fourier-transform
143
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Calculating of roots of unity

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#polynomials #fast-fourier-transform
83
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Is this solution for the fourier transform correct? Thank you!

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#fourier-analysis #fourier-series #fourier-transform #fast-fourier-transform
1.3k
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Using NTT (Number Theoretic Transform) to multiply two Polynomials

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#polynomials #modular-arithmetic #fourier-transform #convolution #fast-fourier-transform
37
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How to transform between different indexing of DFT

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#fourier-analysis #fourier-transform #fast-fourier-transform
115
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Can Fast Fourier Transform (FFT) be implemented using Clifford Algebra over GF(3)?

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#finite-fields #fourier-transform #clifford-algebras #fast-fourier-transform #geometric-algebras
74
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FFT Bin Estimation - Quadratic Interpolation Equation Differences

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#complex-numbers #fourier-analysis #quadratics #signal-processing #fast-fourier-transform
24
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Trying to understand what a fast fourier transform (np.fft) returns

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#numerical-methods #python #fast-fourier-transform

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