drasys.or.matrix
Interface ContiguousMatrixI

All Known Implementing Classes:

ContiguousMatrix, ContiguousMatrix.Sub

public interface ContiguousMatrixI

extends MatrixI

Abstract interface to abstractly access contiguous matrices. A contiguous matrix is a dense matrix structure where all the elements are stored in a single one dimensional array.

Method Summary
ContiguousVectorI	columnVector(int column)           Returns a reference to the column.
ContiguousVectorI	diagonalVector()           Returns a reference to the diagonal vector.
int	getColumnIncrement()           Returns the distance between corresponding elements in adjacent columns.
int	getOffset(int row, int column)           Returns an element's offset into the value array.
int	getRowIncrement()           Returns the distance between corresponding elements in adjacent rows.
double[]	getValueArray()           Returns the internal array that is used to hold the element values.
ContiguousVectorI	rowVector(int row)           Returns a reference to the row.
ContiguousMatrixI	submatrix(int beginRow, int beginColumn)           Returns a reference to the submatrix.
ContiguousMatrixI	submatrix(int beginRow, int endRow, int beginColumn, int endColumn)           Returns a reference to the submatrix.

 

Methods inherited from interface drasys.or.matrix.MatrixI

columnElements, elementAt, elements, equals, getArray, isColumnMajor, isNull, isRowMajor, rowElements, setColumn, setDiagonal, setElementAt, setElements, setElements, setRow, sizeOfColumns, sizeOfElements, sizeOfRows, sum, sum, sum, sumOfSquaredDifferences, sumOfSquaredDifferences, sumOfSquaredDifferences, sumOfSquares, sumOfSquares, sumOfSquares

 

Methods inherited from interface drasys.or.matrix.RealContainerI

equals, getEpsilon, setEpsilon

 

Method Detail

submatrix

public ContiguousMatrixI submatrix(int beginRow,
                                   int beginColumn)

Returns a reference to the submatrix.

submatrix

public ContiguousMatrixI submatrix(int beginRow,
                                   int endRow,
                                   int beginColumn,
                                   int endColumn)

Returns a reference to the submatrix.

rowVector

public ContiguousVectorI rowVector(int row)

Returns a reference to the row.

columnVector

public ContiguousVectorI columnVector(int column)

Returns a reference to the column.

diagonalVector

public ContiguousVectorI diagonalVector()

Returns a reference to the diagonal vector.

getValueArray

public double[] getValueArray()

Returns the internal array that is used to hold the element values. The element values are stored in a single contiguous block of memory in this array.

getOffset

public int getOffset(int row,
                     int column)

Returns an element's offset into the value array.

getRowIncrement

public int getRowIncrement()

Returns the distance between corresponding elements in adjacent rows.

getColumnIncrement

public int getColumnIncrement()

Returns the distance between corresponding elements in adjacent columns.