2nd order differential equation help
- To: mathgroup at smc.vnet.net
- Subject: [mg31475] 2nd order differential equation help
- From: peterangelo at mindspring.com (Peter Dimitriou)
- Date: Wed, 7 Nov 2001 05:30:35 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Exactly how do I get this into a form Mathamatica will accept? It has
been a number of years since enrolling in diffeq, however I think I am
close to correct but would appreciate help.
the problem;
Solve the differential equation:
g''(t) + 0.1 g'(t) + g(t) = 0
where the previous equation uses conventional mathematical notation.
You must transfrom the equation and initial conditions into
Mathematica syntax.
for t between 0 and 10 Pi
subject to the initial conditions
g(0) = 0,
g'(0) = 1
Plot your results.
My attempt is as follows:
Clear[g]
Clear[eqn]
eqn[t_] = g''[t] + 0.1g'[t] + g[t] == 0
Clear[eqn1]
eqn1[t_] = g'[t] + 0.1g[t] + ?g[t] == 0
solution = DSolve[{eqn[t], eqn1[t]}, g'[0] == 1,
g[0] == 0, g[t], {t, 0, 10\[Pi]}]
DSolve::dsvar: g[0]==0 cannot be used as a variable.
what am I dont doing right? any suggestions helpful
- Follow-Ups:
- Re: 2nd order differential equation help
- From: Tomas Garza <tgarza01@prodigy.net.mx>
- Re: 2nd order differential equation help