#113 Quad weights don't sum up to element volume

Metadata

Property	Value
Reported by	Oliver Sander (oliver.sander@tu-dresden.de)
Reported at	Mar 20, 2006 13:12
Type	Bug Report
Version	Git (pre2.4) [autotools]
Operating System	Unspecified / All
Closed by	Christian Engwer (christi@conan.iwr.uni-heidelberg.de)
Closed at	Mar 29, 2006 22:35
Closed in version	1.0
Resolution	Fixed
Comment

Description

The quadrature weights for the first-order quadrature rule for tetrahedra don't sum up to the reference element volume (1/6). Instead they sum up to one. Here is a test program

#include <config.h>

#include <dune/quadrature/quadraturerules.hh>

int main () { Dune::GeometryType type(Dune::GeometryType::simplex, 3); const Dune::QuadratureRule<double, 3>& quad = Dune::QuadratureRules<double, 3>::rule(type, 1); std::cout << "size: " << quad.size() << std::endl; std::cout << "only weight: " << quad[0].weight() << std::endl; }

Result: size: 1 only weight: 1