Write Matlab Code for three segment composite trapezoidal ru

Write Matlab Code for three segment composite trapezoidal rule to solve this integration integral_0.2^2.2 xe^x dx

Solution

function integral = cmptrap(a,b,n,f)

h = (b-a)/n;

x = [a+h:h:b-h];

integral = h/2*(2*sum(feval(f,x))+feval(f,a)+feval(f,b));

Run with

cmptrap(0.2,2.2,3,\'f\')

where ’f’ is the name of the function definition file

function y = f(t)

y = t*exp(t);

result is=10.5024