Matrix

class dolfin.cpp.la.Matrix(*args)

Bases: dolfin.cpp.la.GenericMatrix

This class provides the default DOLFIN matrix class, based on the default DOLFIN linear algebra backend.

Overloaded versions

• Matrix()

  Create empty matrix

• Matrix(A)

  Copy constructor

• Matrix(A)

  Create a Vector from a GenericVector

assign()

Overloaded versions

• operator=(A)

  Assignment operator

• operator=(A)

  Assignment operator

down_cast()

shared_instance()

Overloaded versions

• shared_instance()

  Return concrete shared ptr instance / unwrap (const version)

• shared_instance()

  Return concrete shared ptr instance / unwrap (non-const version)

thisown

The membership flag

zero()

Overloaded versions

• zero()

  Set all entries to zero and keep any sparse structure

• zero(m, rows)

  Set given rows to zero