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Student Support Forum: 'differential equation and steepest desent' topicStudent Support Forum > General > "differential equation and steepest desent"

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manel
11/27/10 5:37pm

hello,
i am a new user of mathematica,i need to turn on an algorithm in which i have to solve differential equations and manipulate some parameters. when i use DSolve and plotparametric it work but if i use the same thig in manipulate block i have an error of integration!!
Manipulate[
sol = DSolve[thetaprime'[t] == ki[t],
i'[t] == -kthetaprime[t] - ri[t] + 10, i[0] = 0,
thetaprime[0] = 0 {i, thetaprime}, t]
ParametricPlot[
Evaluate[{i[t], thetaprime[t]} /. sol, [t, 0, 7]]], {r, 1, 2}, {k,1, 2}]
another problem that i need to use the steepest descent method but i want to put it in a loop and modify the point of departure x0 and the step at each iteration but i don't know how.
thank you in advance for uour help
regards!

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Subject (listing for 'differential equation and steepest desent')
Author Date Posted
differential equation and steepest desent manel 11/27/10 5:37pm
Re: differential equation and steepest desent yehuda ben-s... 11/28/10 1:30pm
Re: Re: differential equation and steepest desent manel 11/29/10 12:57pm
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