How can I integrate an equation with using trapezoidal rule?

There is an equation like y=cosx. I want to integrate this equation from 0 to pi. However, I should use the trapezoidal rule to find integral. There are 5,7,...,43 points(h) that are equally spaced. For each number of points(h) I should find the Integral. For instance h=5, I=? this process should be repeated for all h values from 5 to 43. regards,

Answer 1

[dpb]

This pretty clearly would be a homework type problem, so a) what have you tried so far, and b) what part of

doc trapz % seems to cause confusion?