Re: a problem about NDSolve and NIntegrate
- To: mathgroup at smc.vnet.net
- Subject: [mg80253] Re: a problem about NDSolve and NIntegrate
- From: chuck009 <dmilioto at comcast.com>
- Date: Wed, 15 Aug 2007 04:30:48 -0400 (EDT)
Well hey, I think I got it now after following this for some days now: Using Jean-Marc's code:
(* set up f[c] which defines the solution over the interval [0,c] *)
f[c_] := y[x] /.
NDSolve[{2 y'[x] y[x] + y''[x] y[x] - (y'[x])^2 == y[x], y[0] == 1,
y'[0] == 0}, y, {x, 0, c}][[1]]
(* Now define another function which integrates f[u] over the \
interval [0,v] *)
g[u_, v_] := NIntegrate[Evaluate@f[u], {x, 0, v}]
Nice guys!
Isn't that what you wanted Lynn? Works for me :)