Re: Problem with RSolve
- To: mathgroup at smc.vnet.net
- Subject: [mg62677] Re: Problem with RSolve
- From: dh <dh at metrohm.ch>
- Date: Wed, 30 Nov 2005 22:08:39 -0500 (EST)
- References: <dmk02k$781$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi Jean,
Mathematica version 5.1 seems to able to solve the recursion:
{{c[n] -> (-69*n - 57*n^2 - 14*n^3 + 36*Log[Gamma[1 + n]] +
72*n*Log[Gamma[1 + n]] +
36*n^2*Log[Gamma[1 + n]] - 36*Log[Gamma[2 + n]] - 72*n*Log[Gamma[2
+ n]] -
36*n^2*Log[Gamma[2 + n]] - 36*Derivative[1, 0][Zeta][-2, 2] +
36*Derivative[1, 0][Zeta][-2, 2 + n])/36}}
Daniel
Jean Guillaume Pyraksos wrote:
> I can't get this one solved, can you help ?
>
> RSolve[{c[n] == c[n - 1] + (n^2) Log[n], c[0] == 0}, c[n], n]
>
> I am interested in the principal part of c[n], which should be 1/2 n^2
> Log[n]^2 ?...
>
> Thanks, using Mathematica 4.1.0.0
>
> JG
>