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updated 9 months ago

Fast Chebyshev second order differentiation by Matt

Fast computation of the second derivative of data located along Chebyshev points (spectral analysis, chebyshev, numerical differentia...)

fchd2(v)

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updated 9 months ago

Fast Chebyshev differentiation by Matt

Fast computation of the first derivative of data located along Chebyshev points (spectral analysis, chebyshev, numerical differentia...)

fchd(v)

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updated 1 year ago

Fourier derivative by Matt

A numerical differentiator for periodic functions using Fourier transformations (fourier analysis, spectral methods, numerical differentia...)

fourierderivative(f,a,b)

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updated 11 years ago

Low-pass IIR digital differentiator design by YangQuan Chen

Low pass IIR Digital differentiator weighted Inverse Simpson and trapezoidal scheme. (filter design, filter analysis, iir)

[b,a]=lpiirdd(alpha)

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updated 11 years ago

Low-pass FIR digital differentiator design by YangQuan Chen

Low-pass FIR digital differentiator (LPFIRDD) design via constrained quadratic programming (QP). (filter design, filter analysis, fir)

[Copt,bd]=lpfirdd(N,alpha,beta,r,idraw)

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updated 11 years ago

nd5p.m by YangQuan Chen

Numerical differentiation for an equi-spaced one-dim array. (filter design, filter analysis, digital differentiato...)

[nd_outd]=nd5p(ind,hstep,npoints)

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