Laplace Transformation vs. erf
- To: mathgroup at smc.vnet.net
- Subject: [mg52927] Laplace Transformation vs. erf
- From: db at ict.fhg.de (julia)
- Date: Fri, 17 Dec 2004 05:18:43 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hi, I have a problem with the following transformation: LaplaceTransform[Erf[(L - 2*t*v)/(2*(Dz*t)^0.5)], t, s] It seems that it doesn't converge because of the t in the numerator. When i take the t out of the expression, everything works fine. I've played a little bit around with assumptions and other options, but i couldn't work it out. v,L and Dz are parameters, which are all positive. I'm using t up to ~100. Mathematica just returns the input, and gives not even a error message... Can anybody help me with this? julia