Re: Fourier Transform
- To: mathgroup at smc.vnet.net
- Subject: [mg124270] Re: Fourier Transform
- From: "Dr. Wolfgang Hintze" <weh at snafu.de>
- Date: Sat, 14 Jan 2012 17:18:02 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <jercl1$1d8$1@smc.vnet.net>
<jstorch at earthlink.net> schrieb im Newsbeitrag news:jercl1$1d8$1 at smc.vnet.net... > Mathematica hangs when trying to evaluate the simple Fourier > Transform > of H(a-|t|). > > FourierTransform[HeavisideTheta[a-abs[t]],t,w,Assumptions->a>0] > > (The answer should be Sqrt(2/Pi) (Sin[w a])/w ) > It's a simple typing error: use Abs instead of abs and it will work out fine. (furthermore I used UnitStep instead of HeavisideTheta). Regards, Wolfgang