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  • To: mathgroup at smc.vnet.net
  • Subject: [mg9390] Question
  • From: ptaszyns at galaxy.uci.agh.edu.pl (Boguslaw Ptaszynski)
  • Date: Sun, 2 Nov 1997 01:02:21 -0500
  • Organization: Academic Computer Centre CYFRONET - Krakow
  • Sender: owner-wri-mathgroup at wolfram.com

Hello Mathematica (v.3,0 for Windows) Users,
	I have a question that I hope someone has an answer for. I have the
following recurrence relation:

	a[n+2]= 1/(b^2)  ( b/2  a[n] + n (n-1)/4  a[n-2]  )

for the indices in the series n>=2.
I want to use the formula to determine the values of a[n] for
n=2,3,4,...12  and give these values in the table

I have written :

Clear [a,n,b]
a[n_] := a[n]= 1/(b^2) ( b/2 a[n-2] + (n-2) (n-3)/4  a[n-4] ); a[0]=a0;
a[1]=a1;
TableForm[ Table[{n, a[n]}, {n,0,12}]]

an I have got the following message:

$RecursionLimit::"reclim": "Recursion depth of \!\(256\) exceeded."
$RecursionLimit::"reclim": "Recursion depth of \!\(256\) exceeded."
$RecursionLimit::"reclim": "Recursion depth of \!\(256\) exceeded."
General::"stop": 
    "Further output of \!\($RecursionLimit :: \"reclim\"\) will be
suppressed \
during this calculation."

What does the message mean? I will be happy to get any information
abaout this problem.

		Boguslaw Ptaszynski


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