MATLAB Questions

1) Code a function using the composite trapezoidal rule that can numerically integrate a function.

2) Now do the same (separate function file) but write a function that uses the composite Simpson's 1/3 rule to evaluate an integral.

I need the following inputs & outputs in the functions:

I - the integral estimate

n - number of points for integration

x1,x2 - the limits of integration

fxn - function that requires integration