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Easwaran
Netherlands
Posts |
 Posted - 08/16/2004 : 4:14:18 PM
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I wrote a small program in Matlab to solve an ODE. It is almost same as vdpode of matlab except that the differential equations is changed. The code i wrote is,
tspan = [0, pi];
y0 = [0;pi/4];
% Solve the problem using ode45
ode45(@f,tspan,y0);
% ------------------------------------------------------------
function dydt = f(t,y)
dydt = [sin(y(1))];
I get a error indicating that,
"Solving F requires an initial condition vector of length 1."
I dont understand why. Since this is a first order equation, one initial condition would suffice. That is why, i have written y0 = [0,pi/4];
But i dont understand what is this error and how can it be rectified.
Can somebody help me.
With Regards,
V. Easwar |
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ODE in Matlab
