Tspan is not strictly increasing.

I am trying to solve a second order ode using ODE45 but my tspan is not strictly increasing. How can I solve it ?

Answer 1

[Stephan]

Since ode45 uses an automated stepwide control just define the start and the end of your tspan this way:

tspan = [0 10];

This is all you have to do to solve this problem.

[Asir Tushar]

actually I get the tspan from another function. I need that specified values to be tspan.

T0=[0

0

0

0

0

0

0

0

0

0

4.7581

12.1201

8.6331

2.2103

2.2103

2.2103

2.2103

2.2103

2.2103

2.2103

2.2103]

I need to solve this. thare are another 21 of them like these. where the values are not strictly increasing. I am not giving the main code because it is too big with lots of parameters.

[Stephan]

tspan = sort(unique(T0));

should solve this.

[Asir Tushar]

Thank you.