challenge taylor toni

Objective: absolute value calculation: 1. central difference 2. skewed right-sided difference 3. skewed left-sided difference CODE: clear all close all clc %f(x) = exp(x).cos(x) x= pi/3; exact = -2*exp(x)*sin(x); %centre difference a=-0.0843; b=1.3373; c=-2.506; d=1.3373; e=-0.0843; dx=pi/400; cd= ((a*exp(x-2*dx)*cos(x-2*dx))…