Fsolve vs Newton-Raphson method

Hi everyone,

I am trying to solve a nonlinear equations system. I wonder which method would provide a more accurate result, Fsolve (trust region) or Newton-Raphson Method? I am not really good at maths, sorry if it is a stupid question.

[Astha Singh]

Hi,

Probably you can refer to the 'Limitations' section of this MATLAB Documentation link and take a call based on the type of problem you are trying to solve.

Answer 1

[Charles]

Anyone :( ?

[Torsten]

The "best" numerical method is strongly dependent on the problem you want to solve. So experiment a bit: try both methods and see which one is more suited for your application. If accuracy is the most critial factor, you can easily check it by looking at the residuals of the equations for the solution vector.