I am trying to solve a nonlinear system of 12 equations for 12 unknowns.
(For the purpose of verifying, all the exact value of unknowns are available)
I have tried:
1. The function "solve" in Matlab.
2. The secant method for simultaneous nonlinear equations (by Philip Wolfe, 1959).
But both of them gave me wrong answer.
Could you please kindly help tell me
1. How can I find out whether the equations in the system are independent?
2. Are there any other functions or method which can be used to solve this system of nonlinear equations.
Thank you very much for your time.