Re: FFT in Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg93688] Re: FFT in Mathematica*From*: Oliver <sch_oliver2000 at yahoo.de>*Date*: Sat, 22 Nov 2008 06:10:28 -0500 (EST)

Thanks a lot for ur very useful suggestions. well sorry for saying "FFT" but i actually meant the fourier Transform in analytical way and not in nummeric way. i plotted the FourierTransform of the function according to this: Plot[FourierTransform[(1/(4*(Pi*1*t)^(3/2)))*Exp[-(3)/(4*1*t)], t, f] // Abs, {f, 0, 100}] but i actually got a very weird plot which does not make sense for the frequency.It produces a function in exponential behave. where should be the mistake??! maybe in the solution of the FourierTransform i got? : ((-1 + Sign[f]) Sinh[ Sqrt[Abs[f]] Root[9 + #1^4 &, 4]])/(2 Sqrt[6] \[Pi]^(3/2)) Thanks in Advance