F64

Description:

public F64 (int len, bool inverse)

This returns a new F64 instance with the given parameters.

It makes sense to keep one instance for several calls for speed reasons.

len must be even and to get the best performance a product of 2, 3 and 5. To get the next number with this characteristics use fft_next_fast_length.

Parameters:

len	Length of the FFT in the time domain
inverse	true if the F64 instance should be used for the inverse FFT

Returns:

a new F64 instance.