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单词 fourier transform
释义

WordReference Random House Unabridged Dictionary of American English © 2024
Fourier trans′form, [Math.]
  1. Mathematicsa mapping of a function, as a signal, that is defined in one domain, as space or time, into another domain, as wavelength or frequency, where the function is represented in terms of sines and cosines.
  • see Fourier analysis 1920–25

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