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MathGroup Archive 2002

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help: recursive functions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg32616] help: recursive functions
  • From: Okke at NOSPAMtref.nl (Okke)
  • Date: Thu, 31 Jan 2002 01:45:56 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello,

I'm having some problems with a recursive function.
Could somebody please help me by telling me how I
should enter such a function?

tia,

This is what I've done so far:

f[n_]:=Sin[Pi*n*(0.05+(0.0005*n))]
y[n_]:=1.5*y[n-1]-0.85*y[n-2]+f[n]

I'm trying to Plot[y[n],{n,0,320}] but that gives me
an error: $RecursionLimit::reclim: Recursion depth of 256 exceeded.

btw, is there an option to fill the area under the sine?

-- 
Okke

remove NOSPAM from my email address to reply


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