One-dimensional Real-to-half-complex/Half-complex-to-real FFTs

Half-complex representation of a conjugate-even symmetric vector of size N in a real array of the same size N consists of N/2+1 real parts of the elements of the vector followed by non-zero imaginary parts in the reverse order. Because the Intel MKL FFT interface does not currently support this representation, all wrappers of this kind are empty and do nothing.

Nevertheless, you can perform one-dimensional real-to-complex and complex-to-real transforms using rfftwnd functions with rank=1.

One-dimensional Real-to-half-complex/Half-complex-to-real FFTs

See Also