problem in the discretization of vectors

hi! I would like find a solution for this problem. I integrate a function (fun1) in this way

[t,x] = ode45(fun1, [0 0.2], [0;0]);

Afterwards I integrate the same function but with different parameter's values (fun2).

[T,y] = ode45(fun2, [0 0.2], [0;0]);

Now I have to discretize the vectors x and y. I have to make constant steps that correspond to the same variation of time for both x and y. thanks a lot for your help!!

Answer 1

[Star Strider]

Use a vector of time steps rather than only start and end times for ‘tspan’. This will give you 50 identical time steps for both integrations:

ts = linspace(0, 0.2, 50);
[t,x] = ode45(fun1, ts, [0;0]);
[t,x] = ode45(fun2, ts, [0;0]);