Matlab code assistance needed please!

Hi, I'm currently attempting to write code for a problem in a programming unit.

We are asked to develop a code in MatLab to find a root of the equation: f(x) = cos(x) - x.

This MUST be done using the "Fixed point Iteration" method.

A picture has been provided below with a template given for writing the code (we need to roughly follow this method).

Any help or tips would be appreciated, thank you!

function [x, step fixed _point_iteration (xo, , tol, max iters) % FIXED POINT ITERATION finds solutions to the equation x-f(x). Inputs: x0: initial guess f: function to solve x -f (x) tol: upper bound on step size before solution accepted max iters: maximum number of iterations allowed. Returns: x: root estimate step: last step size. disp ('Warning: dummy fixed point iteration implementation used.') step inf; while abs (step) >tol && iters