# Definition of Fourier Transform

The Fourier Transform or the Fourier integral of a function f(t) is denoted by F(jÏ‰) and is defined by,

F(jÏ‰) = F [ f (t)] =   (i)

and the inverse Fourier transform is defined by,

f(t) = F â€“1[F(jÏ‰)] =   (ii)

Equations (i) and (ii) form the Fourier transform pair.