How can I integrate an equation using matlab?

Question

I need a list of the commands being used on matlab6.

Answer 1

If you were to integrate f(x) from 0 to pi/2

it wold be int(f,0,pi/2).

Answer 2

If you want to integrate it using real numbers,

ans = 0;
for m = lower_Limit:dx:upper_Limit
ans = ans + equation(m)
end

If you want to use symbols, use the symbolic library toolbox.