10/02/2009, 02:59 AM
Yes, it turns smooth if the number of nodes meets the requirement I mentioned, otherwise it fails as the posted graphs show.
It's interesting you mention about the weight, though I do not update nodes during the Simpson procedure, and why does it seems that odd node numbers that converge alternate with those that don't?
As for using a higher order quadrature, yeah it would be better, but as you can see there are still a few issues to work out, then I'll switch to a more sophisticated method (cubic, maybe the Gauss-Legendre even). That's what I'm after here, trying to get out the bugs so they don't bite me later
It's interesting you mention about the weight, though I do not update nodes during the Simpson procedure, and why does it seems that odd node numbers that converge alternate with those that don't?
As for using a higher order quadrature, yeah it would be better, but as you can see there are still a few issues to work out, then I'll switch to a more sophisticated method (cubic, maybe the Gauss-Legendre even). That's what I'm after here, trying to get out the bugs so they don't bite me later