can someone please help with matlab?! I need to modify the following code to calculate the the approximation to the integral using the right rectangle, the mid-point rule, and the trapezium rule, respectively.

clear all; % clears all variables
format long; % outputs numbers in 15 decimal digits (significant digits)
n = 10; % number of subintervals
a = 0; b = 1; % define the endpoints of integration
h = (b-a)/n; % set up the subinterval length h
x = linspace(a,b,n+1); % create the vector (x1, x2, . . . , xn+1)
integral = h.*sum(f5(x(1:n))) % calculate the approximation to the integral,

Question

can someone please help with matlab?! I need to modify the following code to calculate the the approximation to the integral using the right rectangle, the mid-point rule, and the trapezium rule, respectively.

clear all; % clears all variables
format long; % outputs numbers in 15 decimal digits (significant digits)
n = 10; % number of subintervals
a = 0; b = 1; % define the endpoints of integration
h = (b-a)/n; % set up the subinterval length h
x = linspace(a,b,n+1); % create the vector (x1, x2, . . . , xn+1)
integral = h.*sum(f5(x(1:n))) % calculate the approximation to the integral,