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Re: NDSolve curve - obtain single value from curve at t:=d
*To*: mathgroup at smc.vnet.net
*Subject*: [mg127682] Re: NDSolve curve - obtain single value from curve at t:=d
*From*: "Kevin J. McCann" <kjm at KevinMcCann.com>
*Date*: Wed, 15 Aug 2012 03:31:25 -0400 (EDT)
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*References*: <k0d1ta$m0c$1@smc.vnet.net>
You did not give any of the constants, but this should get you started.
d = age + remainingLife;
age = 32.0;
annuityAmt = 100000.0;
startValue = 100000.0;
fundRate = 0.05;
eqn1 = y'[t] == fundRate/100*y[t] - annuityAmt;
Y[t_] = y[t] /.
NDSolve[{eqn1, y[age] == startValue}, y[t], {t, age, 110}][[1]]
Plot[Y[t], {t, 32, 110}]
Kevin
On 8/14/2012 4:23 AM, design wrote:
> Customized annuity applet;
> I need to find the value of sol1 at t = d;
> d, age, remaining life, fundrate, (and others) are all sliders;
> Overall apples is working well
>
> d = age + remainingLife;
> eqn1 = y'[t] == fundRate/100*y[t] - annuityAmt;=E2=80=A8sol1 = y[t]/. NDSolve[{eqn1, y[age] == startValue}, y[t], {t, age, 110}];
>
> I have tried the sol1 iteration with {d,d,110} and many other approaches to no avail.
>
> Suggestions appreciated!!
>
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