Pseudo expression to manipulate a triangular sparse matrix as a selfadjoint matrix. More...
Public Member Functions | |
Index | cols () const |
template<typename OtherDerived > | |
SparseSelfAdjointTimeDenseProduct < MatrixType, OtherDerived, UpLo > | operator* (const MatrixBase< OtherDerived > &rhs) const |
template<typename DerivedU > | |
SparseSelfAdjointView & | rankUpdate (const SparseMatrixBase< DerivedU > &u, Scalar alpha=Scalar(1)) |
Index | rows () const |
SparseSymmetricPermutationProduct < _MatrixTypeNested, UpLo > | twistedBy (const PermutationMatrix< Dynamic > &perm) const |
Friends | |
template<typename OtherDerived > | |
DenseTimeSparseSelfAdjointProduct < OtherDerived, MatrixType, UpLo > | operator* (const MatrixBase< OtherDerived > &lhs, const SparseSelfAdjointView &rhs) |
Pseudo expression to manipulate a triangular sparse matrix as a selfadjoint matrix.
MatrixType | the type of the dense matrix storing the coefficients | |
UpLo | can be either Lower or Upper |
This class is an expression of a sefladjoint matrix from a triangular part of a matrix with given dense storage of the coefficients. It is the return type of MatrixBase::selfadjointView() and most of the time this is the only way that it is used.
Index cols | ( | void | ) | const [inline] |
Reimplemented from EigenBase< SparseSelfAdjointView< MatrixType, UpLo > >.
SparseSelfAdjointTimeDenseProduct<MatrixType,OtherDerived,UpLo> operator* | ( | const MatrixBase< OtherDerived > & | rhs | ) | const [inline] |
Efficient sparse self-adjoint matrix times dense vector/matrix product
SparseSelfAdjointView< MatrixType, UpLo > & rankUpdate | ( | const SparseMatrixBase< DerivedU > & | u, | |
Scalar | alpha = Scalar(1) | |||
) |
Perform a symmetric rank K update of the selfadjoint matrix *this
: where u is a vector or matrix.
*this
Note that it is faster to set alpha=0 than initializing the matrix to zero and then keep the default value alpha=1.
To perform you can simply call this function with u.adjoint().
Index rows | ( | void | ) | const [inline] |
Reimplemented from EigenBase< SparseSelfAdjointView< MatrixType, UpLo > >.
SparseSymmetricPermutationProduct<_MatrixTypeNested,UpLo> twistedBy | ( | const PermutationMatrix< Dynamic > & | perm | ) | const [inline] |
DenseTimeSparseSelfAdjointProduct<OtherDerived,MatrixType,UpLo> operator* | ( | const MatrixBase< OtherDerived > & | lhs, | |
const SparseSelfAdjointView< MatrixType, UpLo > & | rhs | |||
) | [friend] |
Efficient dense vector/matrix times sparse self-adjoint matrix product