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Re: recursive relation problem ?


cplai at geocities.com wrote in message <6qp2vd$aiu at smc.vnet.net>...
>Dear all,
>
>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);
>
=

William:

Load the Standard Package DiscreteMath`RSolve`

<<DiscreteMath`RSolve`

Then we have

RSolve[{f[0]==1, f[1]==1, f[x]==x*f[x-1]},f[x], x]

{{f[x]->x!}}


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