[Numpy-FFT] data output format

[Giovanni Ciampaglia]

Hello everyone,
Could someone explain me what is the "steady-state" value contained into the
array returned by FFT.fft(data,n=None,axis=-1) at its first position? 
Is it one of the values calculated by the FFT algorithm or some sort of control
value different from the other elements of the array?

Thanks! 

p.s. I've checked www.numpy.org, but the documentation about that function is
incomplete...
-- 
Ciao, Giovanni aka Junkie Dolphin

Political language...is designed to make lies 
sound truthful and murder respectable, and to 
give an appearance of solidity to pure wind.

George Orwell