Quadrilateral Rules
Quality markers:
P: positive weightsN: some negative weightsI: all quadrature points are strictly inside the reference elementB: some quadrature points lie on the boundaryO: some quadrature points lie outside the reference element
| Degree | Points | Accuracy | Quality | Orbits | Reference |
|---|---|---|---|---|---|
| 1 | 1 | 0.00e+00 | PI | [1, 0, 0, 0] | [WV15] |
| 3 | 4 | 3.16e-33 | PI | [0, 0, 1, 0] | [WV15] |
| 5 | 8 | 1.52e-33 | PI | [0, 1, 1, 0] | [WV15] |
| 7 | 12 | 1.19e-33 | PI | [0, 1, 2, 0] | [WV15] |
| 9 | 20 | 3.09e-33 | PI | [0, 1, 2, 1] | [WV15] |
| 11 | 28 | 4.00e-33 | PI | [0, 1, 2, 2] | [WV15] |
| 13 | 37 | 5.80e-33 | PI | [1, 2, 3, 2] | [WV15] |
| 15 | 48 | 1.87e-33 | PI | [0, 2, 2, 4] | [WV15] |
| 17 | 60 | 2.88e-33 | PI | [0, 2, 5, 4] | [WV15] |
| 19 | 72 | 3.36e-33 | PI | [0, 3, 3, 6] | [WV15] |
| 21 | 85 | 1.72e-33 | PI | [1, 2, 5, 7] | [WV15] |