Vector Q

Before running this example, you must install Basix.UFL:

pip3 install git+https://github.com/FEniCS/basix fenics-ufl

This element can then be created with the following lines of Python:

import basix
import basix.ufl

# Create vector Q degree 1 on a quadrilateral
element = basix.ufl.element(basix.ElementFamily.P, basix.CellType.quadrilateral, 1, lagrange_variant=basix.LagrangeVariant.equispaced, shape=(2,))

# Create vector Q degree 2 on a quadrilateral
element = basix.ufl.element(basix.ElementFamily.P, basix.CellType.quadrilateral, 2, lagrange_variant=basix.LagrangeVariant.equispaced, shape=(2,))

# Create vector Q degree 1 on a hexahedron
element = basix.ufl.element(basix.ElementFamily.P, basix.CellType.hexahedron, 1, lagrange_variant=basix.LagrangeVariant.equispaced, shape=(3,))

# Create vector Q degree 2 on a hexahedron
element = basix.ufl.element(basix.ElementFamily.P, basix.CellType.hexahedron, 2, lagrange_variant=basix.LagrangeVariant.equispaced, shape=(3,))

Before running this example, you must install Symfem:

pip3 install symfem

This element can then be created with the following lines of Python:

import symfem

# Create vector Q degree 1 on a quadrilateral
element = symfem.create_element("quadrilateral", "vector Q", 1)

# Create vector Q degree 2 on a quadrilateral
element = symfem.create_element("quadrilateral", "vector Q", 2)

# Create vector Q degree 1 on a hexahedron
element = symfem.create_element("hexahedron", "vector Q", 1)

# Create vector Q degree 2 on a hexahedron
element = symfem.create_element("hexahedron", "vector Q", 2)

Before running this example, you must install (legacy) UFL:

pip3 install setuptools
pip3 install fenics-ufl-legacy

This element can then be created with the following lines of Python:

import ufl_legacy

# Create vector Q degree 1 on a quadrilateral
element = ufl_legacy.VectorElement("Q", "quadrilateral", 1)

# Create vector Q degree 2 on a quadrilateral
element = ufl_legacy.VectorElement("Q", "quadrilateral", 2)

# Create vector Q degree 1 on a hexahedron
element = ufl_legacy.VectorElement("Q", "hexahedron", 1)

# Create vector Q degree 2 on a hexahedron
element = ufl_legacy.VectorElement("Q", "hexahedron", 2)