Re: Problem with FourierTransform
- To: mathgroup at smc.vnet.net
- Subject: [mg50011] Re: Problem with FourierTransform
- From: "Peter Pein" <petsie at arcor.de>
- Date: Wed, 11 Aug 2004 05:53:09 -0400 (EDT)
- References: <cetevp$6hf$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
"Oliver" <ofr at interims.de> schrieb im Newsbeitrag news:cetevp$6hf$1 at smc.vnet.net... > Why doesn't this work: > This FT can be computed without problems > FourierTransform[Sin[t^2]/2+1/2] > But this one > FourierTransform[Sin[t^2/c]/2+1/2] > gives error: > Simplify::"fas": "Warning: self-contradictory > assumptions encountered." > Why? > > Oliver > Hi Oliver, strange... In[1]:= $Version FourierTransform[1/2*Sin[t^2/c] + 1/2, t, w] Out[1]= "4.0 for Microsoft Windows (July 16, 1999)" Out[2]= Sqrt[Pi/2]*DiracDelta[w] + (Cos[1/4*Sqrt[c^2]*w^2] - Sqrt[1/c^2]*Sqrt[c^2]*Sin[1/4*Sqrt[c^2]*w^2])/ (4*(1/c^2)^(1/4)*Sign[c]) -- Peter Pein, Berlin to write to me, start the subject with [