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To compute 1-dimensional inverse discrete Fourier transforms, we use ____

15. To compute 1-dimensional inverse discrete Fourier transforms, we use ____.

1. ifft(a[, n, axis, norm])
2. fft(a[, n, axis, norm])
3. ufft(a[, n, axis, norm])
4. None of the mentioned above

Answer: A) ifft(a[, n, axis, norm])

Explanation:

The Fourier transform (FT) is a type of mathematical transform that decomposes functions that are space- or time-dependent into functions that are either space- or time-frequency-dependent. Decomposing the waveform of a musical chord into terms of the strength of its constituent pitches is an illustration of one possible application of this technique. The frequency domain representation as well as the mathematical operation that relates the frequency domain representation to a function of space or time is both included in the definition of the word "Fourier transform," which applies to both of these concepts.