Re: A simple question? Please help
- To: mathgroup at smc.vnet.net
- Subject: [mg20490] Re: [mg20435] A simple question? Please help
- From: steffenz at server2.fo.FH-Koeln.DE
- Date: Wed, 27 Oct 1999 02:04:53 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Hello Don You have to load the Fourier-Package first ! Needs["Calculus`FourierTransform`"] LaplaceTransform[Sin[t], t, s] bye Steffen > Date: Tue, 26 Oct 1999 00:33:15 -0400 > From: "Don Metcalf" <dmetcalf at fishinternet.com.au> > To: mathgroup at smc.vnet.net > Subject: [mg20490] [mg20435] A simple question? Please help > Organization: Customer of Connect.com.au Pty. Ltd. > Hello, > > I'm having trouble getting Mathematica 3.0 to perform even the most basi= c > Laplace and Fourier transforms. I have copied examples directly from th= e > help files and it still won't evaluate the output described in the notes= ! > > The following is taken directly from the book > > "This evaluates a Laplace transform. > > LaplaceTransform[Sin[t], t, s]" > > and the output should be 1/[1+s^2] > > yet I just get the input returned. Am I doing something really obviousl= y > wrong? This has been bugging me. > > kind regards, > > Paul, > > pdm03 at uow.edu.au > > PS Please email the above address to let me know of a reply if you can = help > > Dipl.-Ing. Steffen Zozgornik Institut f=FCr Licht- und Bautechnik an der Fachhochschule K=F6ln Gremberger Stra=DFe 151 a D - 51105 K=F6ln Tel.: +49 - 221 - 83 10 95 Fax.: +49 - 221 - 83 55 13