Check equality with another finite element.

Comparison for equality.

Stop timer and flush timing data to logger.

Exit context manager and close file.

Exit context manager and close file.

Exit context manager and close file.

Real representation of the constant.

Initialize nonlinear PDE problem.

Initialize nonlinear PDE problem.

Creates a Python wrapper for the exported adjacency list class. Note: Do not use this constructor directly. Instead use

Wrap a C++ PointOwnershipData.

Wrap a C++ BoundingBoxTree. Note: This initializer should not be used in user code. Use ``bb_tree``.

Create timer. Args: name: Identifier to use when storing elapsed time in logger.

Initialize a topology from a C++ topology. Args: topology: The C++ topology object Note: Topology objects sh

Initialize a geometry from a C++ geometry. Args: geometry: The C++ geometry object. Note: Geometry objects s

Initialize mesh from a C++ mesh. Args: msh: A C++ mesh object. domain: A UFL domain. Note: Mesh

Initialize tags from a C++ MeshTags object. Args: meshtags: C++ mesh tags object. Note: MeshTags objects sho

Initialise an entity map from a C++ `EntityMap` object. Note: `EntityMap` objects should not usually be created using this

Initialize Newton solver. Note: This class is deprecated in favour of :class:`dolfinx.fem.petsc.NonlinearProblem`, a

Initialize SuperLU_DIST solver for a linear variational problem. Args: a: Bilinear UFL form, the left-hand side of the variationa

Create a coordinate map element. Note: This initialiser is for internal use and not normally called in user code. Use

Creates a Python wrapper for the exported finite element class. Note: Do not use this constructor directly. Instead use

Initialize a finite element form. Note: Forms should normally be constructed using :func:`form` and not using this cl

Initialize solver for a linear variational problem. By default, the underlying KSP solver uses PETSc's default options, usually GMRES

Initialize solver for a nonlinear variational problem. By default, the underlying SNES solver uses PETSc's default options. To use th

Initialize solver for a Newton solver. Args: F: The PDE residual F(u, v). u: The unknown. bcs: List of Di

Create an Expression. Args: e: UFL expression. X: Array of points of shape ``(num_points, tdim)`` on the

Initialize a finite element Function. Args: V: The function space that the Function is defined on. x: Function degree

Create a finite element function space. Note: This initialiser is for internal use and not normally called in user co

Initialise a Dirichlet boundary condition. Note: Dirichlet boundary conditions should normally be constructed using

Initialise a degree-of-freedom map.

Initialize a writer for outputting data in the VTX format. Args: comm: The MPI communicator filename: The

Create a distributed vector. Args: x: C++ Vector object. Note: This initialiser is intended for internal lib

Create a distributed compressed sparse row matrix. Note: Objects of this type should be created using :func:`matrix_c

Create a SuperLU_DIST matrix. Args: matrix: C++ SuperLUDistMatrix object. Note: This initialiser is intended

Create a SuperLU_DIST solver. Args: solver: C++ SuperLUDistSolver object. Note: This initialiser is intended

Initialize background electric field expression.

A matrix-free operator for a bilinear form. Args: bilinear_form: The bilinear form. bcs: A list of Dirichlet boundary

Comparison for inequality.

String representation of the adjacency list.

Pretty print representation.

Helper function for ghost updating PETSc vectors.

Interpolate a cpp.fem.Function.

Helper function for zeroing out PETSc vectors.

The compiled bilinear form representing the left-hand side.

The compiled bilinear form representing the right-hand side.

The compiled bilinear form (the Jacobian form).

-----------------------------------------------------------------------------

-----------------------------------------------------------------------------

Modify right-hand side for lifting of Dirichlet conditions. Consider the discrete algebraic system: .. math:: \\begin{bmatrix} A_{0}

-----------------------------------------------------------------------------

Array representation of the adjacency list. Note: This is available only for adjacency lists with no additional link

Assemble the Jacobian and preconditioner matrices. A function conforming to the interface expected by ``SNES.setJacobian`` can be created by

Assemble bilinear form into a matrix. Args: a: The bilinear form assemble. bcs: Boundary conditions that affect the assembled mat

Assemble the residual at ``x`` into the vector ``b``. A function conforming to the interface expected by ``SNES.setFunction`` A function conf

Assemble linear form into a vector.

Assemble simple linear form over a mesh into the array b using a parallel loop.

Residual vector.

Right-hand side vector.

Right-hand side vector.

Residual vector.

Compute the background plane wave field at point x.

Cylindrical harmonics of background field (φ component).

Cylindrical harmonics of background field (ρ and z components).

Block sizes for the matrix.

-----------------------------------------------------------------------------

-----------------------------------------------------------------------------

Monolithic blocked.

Monolithic blocked.