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    Computes the fast Fourier transform (FFT).

    Syntax

    c = fft(a)
    c = fft(a, b)
    c = fft(a, b, d)
    c = fft(a, [], d)

    Inputs

    a

    Scalar or array of any dimension.

    b

    Number of rows of a to use. If b is larger than the size of a, a is resized and padded with zeros. b is an integer and is typically a power of 2.

    d

    Dimension of a in which MathScript performs the FFT. d is an integer.

    []

    Tells MathScript that you want to specify a and d but not b.

    c

    Fast Fourier transform of a. Array with the same size as a, except you define a specific dimension. If you specify d, the size of c is the specified dimension. If a is a vector, c = fft(a) returns the original discrete Fourier transform (DFT). If a is a matrix, c = fft(a) returns the column-wise fast Fourier transforms of all columns of a.