Re: Laplace Transform Exponential Shift
- To: mathgroup at smc.vnet.net
- Subject: [mg96537] Re: Laplace Transform Exponential Shift
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Mon, 16 Feb 2009 06:54:45 -0500 (EST)
- Organization: The Open University, Milton Keynes, UK
- References: <gn8j9t$7n7$1@smc.vnet.net>
In article <gn8j9t$7n7$1 at smc.vnet.net>,
Bill Rowe <readnews at sbcglobal.net> wrote:
> On 2/14/09 at 3:08 AM, phbrf at t-online.de (Peter Breitfeld) wrote:
>
> >Marc wrote:
>
> >>InverseLaplaceTransform[Exp[a s],s,t]
>
> >>is returned unevaluated!
>
> >in V.7 this seems to work, returns 1/(t-a)
>
> Hmm... Perhaps there is a platform dependency? On my system
>
> (Out[6]= 7.0 for Mac OS X x86 (64-bit) (November 11, 2008))
>
> InverseLaplaceTransform[Exp[a s],s,t]
>
> is returned unevaluated
On my Win32 V7.0 too:
In[1]:= InverseLaplaceTransform[Exp[a s], s, t]
Out[1]= InverseLaplaceTransform[E^(a s), s, t]
In[2]:= {$Version, $ReleaseNumber}
Out[2]= {"7.0 for Microsoft Windows (32-bit) (November 10, 2008)", 0}
In[1]:= InverseLaplaceTransform[Exp[a s], s, t]
Out[1]= InverseLaplaceTransform[E^(a s), s, t]
In[2]:= {$Version, $ReleaseNumber}
Out[2]= {"6.0 for Mac OS X x86 (64-bit) (May 21, 2008)", 3}
Regards,
--Jean-Marc