There are missing parts from the Matlab code, please complete it. this Matlab code is for fixed point iteration

function [k, xc, err,x] = fixptit (g,p0, tol, maxIt) % Input - g is the iteration function % input it as an inline function OR write a Matlab function file for g , say fixptit.m Then (IN MATLAB Command window) >>[k, xc, err,x] = fixptit(g.po, tol, maxIt) - po is the initial guess for the fixed-point - tol is the tolerance - maxIt is the maximum number of iterations % Output - k is the number of iterations that were carried out - xc is the approximation to the fixed-point - err is the error in the approximation % - x'contains the sequence {x_n} % x(1)=pO; for k=2: maxIt x(k)=g(x(k-1)); err=abs(x(k)-x(k-1)); relerr=err/(abs(x(k))+eps); if (err>[k, xc, err,x] = fixptit(g.po, tol, maxIt) - po is the initial guess for the fixed-point - tol is the tolerance - maxIt is the maximum number of iterations % Output - k is the number of iterations that were carried out - xc is the approximation to the fixed-point - err is the error in the approximation % - x'contains the sequence {x_n} % x(1)=pO; for k=2: maxIt x(k)=g(x(k-1)); err=abs(x(k)-x(k-1)); relerr=err/(abs(x(k))+eps); if (err