what's up?
the simpsons 1/3 is applied to parabolic functions, when there is a single interval (or for a subdivided interval) and yields a more accurate area than the trapezoidal rule (which is more accurate than the Riemann sum)...3/8 is used in conjunction with the 1/3 when you have an odd number of intervals...
Originally Posted by Paperchasin
the Guass-Legendre quadarture is used to obtain an even more accurate estimation by picking an optimal abscissa(s) (sp?) to evaluate the function f(x)...



