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Abbreviated names | GLL |
Orders | \(1\leqslant k\) |
Reference elements | interval, quadrilateral, hexahedron |
Polynomial set | \(\mathcal{Q}_{k}\) ↓ Show polynomial set definitions ↓ |
DOFs | On each vertex: point evaluations On each edge: point evaluations at GLL points On each face: point evaluations at GLL points On each volume: point evaluations at GLL points |
Number of DOFs | interval: \(k+1\) (A000027) quadrilateral: \((k+1)^2\) (A000290) hexahedron: \((k+1)^3\) (A000578) |
Mapping | identity |
continuity | Function values are continuous. |
Categories | Scalar-valued elements |
Basix | basix.ElementFamily.P, ..., basix.LagrangeVariant.gll_warped ↓ Show Basix examples ↓ |
Symfem | "Lagrange", variant="lobatto" ↓ Show Symfem examples ↓ |
interval order 1 | ![]() (click to view basis functions) |
interval order 2 | ![]() (click to view basis functions) |
interval order 3 | ![]() (click to view basis functions) |
interval order 4 | ![]() (click to view basis functions) |
quadrilateral order 1 | ![]() (click to view basis functions) |
quadrilateral order 2 | ![]() (click to view basis functions) |
Element added | 10 February 2021 |
Element last updated | 02 August 2022 |