ode solver store solution

Hello im using this code calling it from main:

function Heat

[t,T]=ode15s(@dT_dt,[0,timespan],InitialTemp,options);

options = odeset('Jacobian',A);

return

function DT = dT_dt(t,T)

DT = A*T +b ;

return

i cant figure out how to store (t,T) in an array for using it somewhere else. Regards

Answer 1

[Jan]

You can export t and T as output:

function [t, T] = Heat
...

Then your function is called as:

[t, T] = Heat;

But I think there are bugs in your program: The variable A is neither defined inside the function Heat not inside DT. Do you have a function called "A"? Are you sure that you want to call odeset after the integration and not before?

[Ma]

Thank you so much for this Jan!

-A is defined inside "Heat"

- adding output argument to "Heat just work (Great!!)

- im pretty new to Mlab and the flow of data between functions and Handling get me a bit confused. Like this "pingpong " routine between DT and ode, should i put "heat after Dt ?

once more, thank you

p.s This is an exercise from some Electures