Base class for all matrices stored in sparse format.
Preconditioner()
Constructor.
virtual void init(const SparseMtrx &a)
Initializes the receiver (constructs the preconditioning matrix M) of given matrix.
the oofem namespace is to define a context or scope in which all oofem names are defined.
virtual IRResultType initializeFrom(InputRecord *ir)
Initializes receiver from given record. Empty implementation.