I am trying to solve the following system of 3 nonlinear equations:
Where A,B,C,D,E,F,G,H,I,P1 and P2 are variables and X,Y and Z are the 3 unknowns to find.
I have tried using the function Fsolve with an m-file but the results were not good enough.
Is there any other function to solve this system ?????