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Solving Second Order Differential Equations in Matlab
This video describes how to solve second order initial value problems in Matlab, using the ode45 routine. A full res version can be found at http://blanchard.ep.wisc.edu These videos were recorded...
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i need to solve it with Eulers method and i dont understand what should i enter to matlab to solve.
Strings passed to EVAL cannot contain function declarations.
Is this bcoz. i m using a old version(3.6.5)?
Plz help
[t,y]=ode45('f',[0 15], [600,0]);
how you run this ?
you create 2 .m files ? where you saved them what ar ethe names ?
coul you please answer
function rk=f(t,y)
rk=[y(2); -9.81+4/14*y(2).^2/80];
Then type these into the command window
[t,y]=ode45(@f,[0 15], [600,0]);
plot(t,y(:,1))
Now it works,
I need another favor please:
how to solve : m(d^2/dt^2)+c(dx/dt)+kx=u(t);
with initial conditions: x(0)=1, (dx/dt)(0)=2; and u(t) is input = sin(2*pi*t)
blanchard "dot" ep "dot" wisc "dot" edu/PublicMatlab/index.html#IV P