the Trapezoidal rule for approximate integration

[James Tursa]

What have you done so far? What specific problems are you having with your code?

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

[John D'Errico]

Make an effort. Show what you are trying. THEN ask for help when you get stuck, if you do. You might actually get help then. Otherwise, this is just your homeework assignment, not ours.