Function fft

Fast Fourier transform.

Computes the 1-dimensional discrete Fourier transform over the inner-most dimension of input.

const real = tf.tensor1d([1, 2, 3]);
const imag = tf.tensor1d([1, 2, 3]);
const x = tf.complex(real, imag);

x.fft().print();  // tf.spectral.fft(x).print();
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