an encyclopedia of finite element definitions

Gauss–Legendre

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Degrees\(0\leqslant k\)
where \(k\) is the Lagrange superdegree
Polynomial subdegree\(k\)
Polynomial superdegree\(dk\)
Lagrange subdegree\(k\)
Lagrange superdegree\(k\)
Reference elementsinterval, quadrilateral, hexahedron
Polynomial set\(\mathcal{Q}_{k}\)
↓ Show polynomial set definitions ↓
DOFsOn each vertex: point evaluations
On each edge: point evaluations at Gauss–Legendre points
On each face: point evaluations at Gauss–Legendre points
On each volume: point evaluations at Gauss–Legendre points
Number of DOFsinterval: \(k+1\) (A000027)
quadrilateral: \((k+1)^2\) (A000290)
hexahedron: \((k+1)^3\) (A000578)
Mappingidentity
continuityFunction values are continuous.
CategoriesScalar-valued elements

Implementations

This element is implemented in Symfem .↓ Show implementation detail ↓

Examples

interval
degree 1

(click to view basis functions)
interval
degree 2

(click to view basis functions)
quadrilateral
degree 1

(click to view basis functions)
quadrilateral
degree 2

(click to view basis functions)

DefElement stats

Element added20 February 2021
Element last updated27 September 2024