One-dimensional Real-to-half-complex/Half-complex-to-real FFTs
Half-complex representation of a
conjugate-even symmetric vector of size FFT interface does not currently support this representation, all wrappers of this kind are empty and do nothing.
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® oneAPI Math Kernel Library
Nevertheless, you can perform
one-dimensional real-to-complex and complex-to-real transforms
using
rfftwnd
functions
with rank
=1.