MATLAB: Is it possible to calcutate the fixed point of a function in MATLAB 7.9 (R2009b)

Question

I have a function that I would like to find the fixed point for and am not sure if there is a built-in MATLAB function to evaluate the same.

Answer 1

There is no built-in function to evaluate the fixed point of a function in MATLAB 7.8 (R2009b).

As a workaround, reformulate your problem and use the ROOTS function, eg:

f(x) = x;

can be reformulated to finding the roots of:

g(x)= f(x)-x;

Also, it is posible to use MuPad to find the fixed point of a symbolic function. If you have MuPad, please refer to the MuPad documentation for the function "fp::fixedpt”