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SparseLinearAlgebraTraits_d::Matrix

Definition

SparseLinearAlgebraTraits_d::Matrix is a concept of a sparse matrix class.

Refines

LinearAlgebraTraits_d::Matrix

Types

SparseLinearAlgebraTraits_d::Matrix::NT

Creation

SparseLinearAlgebraTraits_d::Matrix M ( int dimension);
Create a square matrix initialized with zeros.

SparseLinearAlgebraTraits_d::Matrix M ( int rows, int columns);
Create a rectangular matrix initialized with zeros.

Operations

int M.row_dimension () Return the matrix number of rows.
int M.column_dimension () Return the matrix number of columns.
NT M.get_coef ( int row, int column) Read access to a matrix coefficient. Preconditions:
  • 0 <= row < row_dimension().
  • 0 <= column < column_dimension().
void M.add_coef ( int row, int column, NT value)
Write access to a matrix coefficient: a_ij <- a_ij + val. Preconditions:
  • 0 <= row < row_dimension().
  • 0 <= column < column_dimension().
void M.set_coef ( int row, int column, NT value, bool new_coef = false)
Write access to a matrix coefficient: a_ij <- val. Optimization:
  • Caller can optimize this call by setting new_coef to true if the coefficient does not already exist in the matrix.
Preconditions:
  • 0 <= i < row_dimension().
  • 0 <= j < column_dimension().

Has Models

Taucs_matrix<T>
Taucs_symmetric_matrix<T>
OpenNL::SparseMatrix<T> in OpenNL package

See Also

SparseLinearAlgebraTraits_d
SparseLinearAlgebraTraits_d::Vector

Next: Mean_value_coordinates_parameterizer_3<ParameterizationMesh_3, BorderParameterizer_3, SparseLinearAlgebraTraits_d>
Navigation: Up, Table of Contents,  Package Overview,  Bibliography,  Index,  Title Page , Acknowledging CGAL
CGAL Open Source Project. Release 3.4. 22 January 2009.