- To: mathgroup at smc.vnet.net
- Subject: [mg52546] Re: FourierTransform
- From: "Steve Luttrell" <steve_usenet at _removemefirst_luttrell.org.uk>
- Date: Wed, 1 Dec 2004 05:58:36 -0500 (EST)
- References: <firstname.lastname@example.org>
- Sender: owner-wri-mathgroup at wolfram.com
Version 5.1 does it correctly.
"Dr A.H. Harker" <a.harker at ucl.ac.uk> wrote in message
news:cohj7g$1nk$1 at smc.vnet.net...
> In Version 4 Mathematica was smart enough to know that
> FourierTransform[f'[x], x, k]
> should give
> -\[ImaginaryI] k FourierTransform[f[x], x, k].
> Version 5 seems no longer to do this -- a nice classroom demonstration and
> a valuable method of solving differential equations down in flames.
> Why is this?
> Tony Harker (Dr A.H. Harker)
> Deputy Head of Department
> Deputy Head, Condensed Matter and Materials Physics Group
> Department of Physics and Astronomy
> University College London
> Gower Street
> WC1E 6BT
> (44)(0)207 679 3404
> a.harker at ucl.ac.uk
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