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| Term | Main definition |
|---|---|
| Fast Fourier Transform | Algorithm to compute the discrete Fourier transform (DFT) and its inverse. Converts time (or space) to frequency and vice versa. |
| FFT | Fast Fourier Transform - algorithm to compute the discrete Fourier transform (DFT) and its inverse. Converts time (or space) to frequency and vice versa. |
| frequency | Number of cycles over a time period (normally per second). Expressed in Hz. |
