I am trying to solve a system of partial differential equations with ode15s in Matlab.
To gain more insight regarding reliability of the solution being obtained, I would like to analyze values of relative and absolute errors.
Could you please tell me whether it is possible to somehow plot the value of absolute error (or relative error) vs iteration count, if I use the built in matlab ode solver (ode15s)?
To be more precise - I would like to achieve some kind of a convergence plot (like in the majority of CFD applications).
Thanks in advance!