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Change quadrature formulae for the reference triangle
Now F.D. Witherden & P.E. Vincent's formulae are used. These formulae are symmetric, use positive weights and ensure that the quadrature points are inside the reference triangle Note: the formula for degree 3 was not provided, the one for degree 4 is used when it is required
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- src/analysis/TriangleGaussQuadrature.cpp 210 additions, 210 deletionssrc/analysis/TriangleGaussQuadrature.cpp
- src/analysis/TriangleGaussQuadrature.hpp 4 additions, 1 deletionsrc/analysis/TriangleGaussQuadrature.hpp
- tests/test_TriangleGaussQuadrature.cpp 15 additions, 20 deletionstests/test_TriangleGaussQuadrature.cpp
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