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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | FFTN FFTN N-Dimensional Forward FFT
Usage
Computes the DFT of an N-dimensional numerical array along all
dimensions. The general syntax for its use is
y = fftn(x)
which computes the same-size FFTs for each dimension of x.
Alternately, you can specify the size vector
y = fftn(x,dims)
where dims is a vector of sizes. The array x is zero padded
or truncated as necessary in each dimension so that the output
is of size dims. The fftn function is implemented by a sequence
of calls to fft.
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