We have some troubles with optimizing our math algorithm.
We calculate the spectrum using FFT functions ant then we need to perform some mathematical operations on it.
The spectrum is in Pack/Perm or CCS format. We can convert it to complex data format but finally we want to take an inverse Fast Fourier transformation.
We cannot find the IFFT function which takes complex data format as it's argument. There are no function to convert complex data format to Pack/Perm/CCS as well.
Could you help us on that issue?
PS: There was IFFT function in old (SPL) library which calculated Inverse Fourier on the complex data.
Thanks in advance,