* bi-quadratic triangle will be split into 3 linear quadrangles;
* bi-quadratic quadrangle will be split into 4 linear quadrangles;
* tri-quadratic hexahedron will be split into 8 linear hexahedra;
* bi-quadratic triangle will be split into 3 linear quadrangles;
* bi-quadratic quadrangle will be split into 4 linear quadrangles;
* tri-quadratic hexahedron will be split into 8 linear hexahedra;