FastHartleyTransformRealFFT(Double, Int32, FourierDirection) Method

Does a real-valued fourier transform of 'n' points of the 'real' array. On forward transform, the real part of the transform ends up in the first half of the array and the imaginary part of the transform ends up in the second half of the array. On backward transform, real and imaginary part have to be located in the same way like the result of the forward transform.

public static void RealFFT(
	double[] real,
	int n,
	FourierDirection direction
)