- To: mathgroup at smc.vnet.net
- Subject: [mg35140] RSolve
- From: Matthias.Bode at oppenheim.de
- Date: Tue, 25 Jun 2002 19:55:31 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
straight from the Help Browser:
1.) y = a, t = n.
RSolve[a[n + 2] - 2*a[n + 1] + 3*a == 4, a[n], n]
If[n >= 1,
2 (-2 + 2 ) -
(-3 + 2 ) C, 0]}}
Simple, isn't it?
I'm new to Mathematica and am having trouble with inputting the
equations I'm looking to solve. I know the basic input of RSolve, but
can't quite get it. Here's a sample problem, if anyone could show me
how to input into RSolve I can probably run with the ball after that.
y(t+2) - 2Y(t+1) + 3Y(1) = 4
With the part in brackets being a subscript denoting time. I know it
sounds dumb, but I just don't know the input notatin well enough to
get a problem typed in correctly, and the Mathematica book is a little
Any help greatly appreciated!
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