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...S gt makesimplex same as maketriangle in general fieldmatrix q k qij i j makecube makehexahedron for each makeshape there is an isshape main template assert rows get number of ishexahedron cols columns iscube ignore dimension include access entry dim check assign const auto row concept geometry right left using geo int argc char argv front ctype bottom dune mpihelper instance modify ldim mydimension local gdim coorddimension global your code goes here l leftmultiplyany sq r rightmultiplyany qs localcoordinate xl x ctypeldim leftmultiply globalcoordinate ctypegdim cc le g rightmultiply rear axpy kq p t detjtj and includes go ks ij...