Re: recursive relation problem ?
- To: mathgroup at smc.vnet.net
- Subject: [mg13703] Re: recursive relation problem ?
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Sat, 15 Aug 1998 04:39:31 -0400
- Organization: University of Western Australia
- References: <6qp2vd$aiu@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
cplai at geocities.com wrote:
> I am studying data structure, and always encounter recursive relation
> equations. How do I use mathematica to give general solution of
> recursive relation.
>
> For example: f(0)=1; f(1)=1; f(x)=x*f(x-1);
Have a look at the DiscreteMath`RSolve` package which is included in the
StandardPackages.
In[1]:= << "DiscreteMath`RSolve`"
In[2]:= RSolve[{f[0] == 1, f[1] == 1, f[x] == x*f[x - 1]}, f[x], x]
Out[2]= {{f[x] -> x!}}
Cheers,
Paul
____________________________________________________________________
Paul Abbott Phone: +61-8-9380-2734
Department of Physics Fax: +61-8-9380-1014
The University of Western Australia Nedlands WA 6907
mailto:paul at physics.uwa.edu.au AUSTRALIA
http://www.physics.uwa.edu.au/~paul
God IS a weakly left-handed dice player
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