From: David Knezevic <david.knezevic@ba...>  20080618 10:26:15

> Do any of you have access to "The finite element method" vol. 1 by > Zienkiewicz & Taylor? Pg. 222 is referenced as the source for orders 15, > and I want to make sure that the 5thorder rule has only 15 points... > The report by Walkington, "Quadrature on Simplices of Arbitrary Dimension" has a quadrature rule on tets that is exact for polynomials of degree 5, and has 15 points (i.e., see Table 2.1, but note that the 15th point is the w_0 point), but it looks like it's not the quadrature rule used in the code. The report is located here: http://www.math.cmu.edu/~nw0z/publications/00CNA023/023abs/ and it is cited in the libmesh source code for fifth order gauss quadrature on triangles. On another note, I've been using the 4th order quadrature rule on tets with 11 quadrature points, does anyone know where that one came from? Cheers, Dave >  > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > Libmeshdevel mailing list > Libmeshdevel@... > https://lists.sourceforge.net/lists/listinfo/libmeshdevel > > 