Dear community!
I tried here (MC 14) to solve my 2nd ODE, which looks quite good. But how can I interpret the results of the std-deviation of m2 and m3? These are complex and very dependent on diff! I have calcupeted it in MMA too, where I could solve the ODE with symbolic power. Moreover I had to use the pseudo-inverse of the matrix - MMA complainded it to me when I used normal inv of a matrix. Any advices and recommendations are very welcome! Thanks a lot Walter