Using NDSolve and Finding a specific Value
- To: mathgroup at smc.vnet.net
- Subject: [mg85354] Using NDSolve and Finding a specific Value
- From: Tara.Ann.Lorenz at gmail.com
- Date: Thu, 7 Feb 2008 04:44:28 -0500 (EST)
Hello.
I am having an issue related to the NDSolve function (I am using
Version 6). The following example illustrates the problem I am
having:
Input:
sols = NDSolve[{i'[t] == (1/8.516011) (-i[t] + 0.596120754),
i[1] == 0.219319}, i[t], {t, 1, 4}]
Output:
{{i[t]->InterpolatingFunction[{{1.,4.}},<>][t]}}
I then would like to solve i[t] for t=3.8
According to the Mathematica website, I should be able to enter the
following input to receive my answer:
i[3.8]/.sols
However, my output is simply i[3.8] and not a numerical value. What
else can I try to get a numerical value from the interpolating
function.
I appreciate any feedback. Thank you