HP71B Integral Questions

[J-F Garnier]

(02-08-2020 10:46 AM)Wes Loewer Wrote:  I'm still wrapping my head around my very long-term misunderstanding of hp's implementation of the Romberg method. So how does this work to use trapezoids but not evaluate the endpoints? Do you just leave out the two outermost trapezoids?

Actually, the endpoints are not really left out, just it's useless to evaluate the function at the endpoints since their contribution to the sum is null due to the (1-u²) factor. So nothing is missing in the sum.

J-F