cupyx.scipy.fftpack.rfft(x, n=None, axis=-1, overwrite_x=False)

Compute the one-dimensional FFT for real input.

The returned real array contains

[y(0),Re(y(1)),Im(y(1)),...,Re(y(n/2))]  # if n is even
[y(0),Re(y(1)),Im(y(1)),...,Re(y(n/2)),Im(y(n/2))]  # if n is odd
  • x (cupy.ndarray) – Array to be transformed.
  • n (None or int) – Length of the transformed axis of the output. If n is not given, the length of the input along the axis specified by axis is used.
  • axis (int) – Axis over which to compute the FFT.
  • overwrite_x (bool) – If True, the contents of x can be destroyed.

The transformed array.

Return type: