The Fourier Transform is a mathematical technique that allows us to analyze a signal in the frequency domain.

The continuous Fourier Transform (CFT) takes a continuous-time signal and transforms it into a continuous-frequency representation. The formula for the CFT is as follows:

F(w) = integral from -infinity to +infinity of f(t)e^(-jw*t) dt

where F(w) is the Fourier Transform of the function f(t), and j is the imaginary unit.
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