I am having an error for ODE45 usage:
XDOT_P12_7B returns a vector of length 2, but the length of the initial conditions vector is 3. The vector returned by
XDOT_P12_7B and the initial conditions vector must have the same number of elements.
I don't see where the problem comes from, I define in the function file 3 variables and my derivative matrix also has 3 components only thing one of my derivatives is equal (it represents constant T)
I would be appreciated if someone can help me with this,