Example: stock market
Notes 8: Fourier Transforms - Warwick
The Fourier transform is used to represent a function as a sum of constituent harmonics. It is a linear invertible transfor-mation between the time-domain representation of a function, which we shall denote by h(t), and the frequency domain representation which we shall denote by H(f). In one dimension, the Fourier transform pair consisting of ...
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