Robust MatLAB differentiation function to compute derivative of discrete time-signal in frequency domain by multiplying its Fourier spectrum with iw (w = cyclic frequency) ; also see inteFD (frequency-domain integration function).
Dr. Erol Kalkan, P.E. (2021). diffFD (https://www.mathworks.com/matlabcentral/fileexchange/58944-difffd), MATLAB Central File Exchange. Retrieved .
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