From: Stefan Jahn <stefan@gr...>  20090507 08:55:46

Am Mi, 6.05.2009, 07:35, schrieb Áîãîìîëîâ Ñåðãåé Èëüè÷: > Good day, Qucshelp. Hello Sergey, > Discrete Fourier Transformation (DFT) and FFT may have number from 0 to > N1. > Why number of DFT or FFT start from 1 (in Qucs 0.0.14)? Why DFT or FFt > with > number=0 is absent in result? It's not missing. fft() and dft() deliver independent data vectors with N values exactly. So how you numerate them (0 to N1 or 1 to N) is meaningless. Please see attached file that everything is fine. Cheers, Stefan. 