Package org.hipparchus.linear

Interface FieldMatrix<T extends FieldElement<T>>

Type Parameters:

T - the type of the field elements

All Superinterfaces:

AnyMatrix, FieldBlendable<FieldMatrix<T>,T>

All Known Implementing Classes:

AbstractFieldMatrix, Array2DRowFieldMatrix, BlockFieldMatrix, SparseFieldMatrix

public interface FieldMatrix<T extends FieldElement<T>>
extends AnyMatrix, FieldBlendable<FieldMatrix<T>,T>

Interface defining field-valued matrix with basic algebraic operations.

Matrix element indexing is 0-based -- e.g., getEntry(0, 0) returns the element in the first row, first column of the matrix.

Method Summary

Modifier and Type	Method	Description
FieldMatrix<T>	add(FieldMatrix<T> m)	Compute the sum of this and m.
void	addToEntry(int row, int column, T increment)	Change an entry in the specified row and column.
default FieldMatrix<T>	blendArithmeticallyWith(FieldMatrix<T> other, T blendingValue)	Blend arithmetically this instance with another one.
FieldMatrix<T>	copy()	Make a (deep) copy of this.
void	copySubMatrix(int[] selectedRows, int[] selectedColumns, T[][] destination)	Copy a submatrix.
void	copySubMatrix(int startRow, int endRow, int startColumn, int endColumn, T[][] destination)	Copy a submatrix.
FieldMatrix<T>	createMatrix(int rowDimension, int columnDimension)	Create a new FieldMatrix of the same type as the instance with the supplied row and column dimensions.
T[]	getColumn(int column)	Get the entries in column number col as an array.
FieldMatrix<T>	getColumnMatrix(int column)	Get the entries in column number column as a column matrix.
FieldVector<T>	getColumnVector(int column)	Returns the entries in column number column as a vector.
T[][]	getData()	Returns matrix entries as a two-dimensional array.
T	getEntry(int row, int column)	Returns the entry in the specified row and column.
Field<T>	getField()	Get the type of field elements of the matrix.
T[]	getRow(int row)	Get the entries in row number row as an array.
FieldMatrix<T>	getRowMatrix(int row)	Get the entries in row number row as a row matrix.
FieldVector<T>	getRowVector(int row)	Get the entries in row number row as a vector.
FieldMatrix<T>	getSubMatrix(int[] selectedRows, int[] selectedColumns)	Get a submatrix.
FieldMatrix<T>	getSubMatrix(int startRow, int endRow, int startColumn, int endColumn)	Get a submatrix.
T	getTrace()	Returns the trace of the matrix (the sum of the elements on the main diagonal).
default FieldMatrix<T>	map(Function<T,T> function)	Acts as if implemented as:
default FieldMatrix<T>	mapToSelf(Function<T,T> function)	Replace each entry by the result of applying the function to it.
FieldMatrix<T>	multiply(FieldMatrix<T> m)	Postmultiply this matrix by m.
void	multiplyEntry(int row, int column, T factor)	Change an entry in the specified row and column.
default FieldMatrix<T>	multiplyTransposed(FieldMatrix<T> m)	Returns the result of postmultiplying this by m^T.
FieldVector<T>	operate(FieldVector<T> v)	Returns the result of multiplying this by the vector v.
T[]	operate(T[] v)	Returns the result of multiplying this by the vector v.
FieldMatrix<T>	power(int p)	Returns the result multiplying this with itself p times.
FieldMatrix<T>	preMultiply(FieldMatrix<T> m)	Premultiply this matrix by m.
FieldVector<T>	preMultiply(FieldVector<T> v)	Returns the (row) vector result of premultiplying this by the vector v.
T[]	preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
FieldMatrix<T>	scalarAdd(T d)	Increment each entry of this matrix.
FieldMatrix<T>	scalarMultiply(T d)	Multiply each entry by d.
void	setColumn(int column, T[] array)	Set the entries in column number column as a column matrix.
void	setColumnMatrix(int column, FieldMatrix<T> matrix)	Set the entries in column number column as a column matrix.
void	setColumnVector(int column, FieldVector<T> vector)	Set the entries in column number column as a vector.
void	setEntry(int row, int column, T value)	Set the entry in the specified row and column.
void	setRow(int row, T[] array)	Set the entries in row number row as a row matrix.
void	setRowMatrix(int row, FieldMatrix<T> matrix)	Set the entries in row number row as a row matrix.
void	setRowVector(int row, FieldVector<T> vector)	Set the entries in row number row as a vector.
void	setSubMatrix(T[][] subMatrix, int row, int column)	Replace the submatrix starting at (row, column) using data in the input subMatrix array.
FieldMatrix<T>	subtract(FieldMatrix<T> m)	Subtract m from this matrix.
FieldMatrix<T>	transpose()	Returns the transpose of this matrix.
default FieldMatrix<T>	transposeMultiply(FieldMatrix<T> m)	Returns the result of postmultiplying this^T by m.
T	walkInColumnOrder(FieldMatrixChangingVisitor<T> visitor)	Visit (and possibly change) all matrix entries in column order.
T	walkInColumnOrder(FieldMatrixChangingVisitor<T> visitor, int startRow, int endRow, int startColumn, int endColumn)	Visit (and possibly change) some matrix entries in column order.
T	walkInColumnOrder(FieldMatrixPreservingVisitor<T> visitor)	Visit (but don't change) all matrix entries in column order.
T	walkInColumnOrder(FieldMatrixPreservingVisitor<T> visitor, int startRow, int endRow, int startColumn, int endColumn)	Visit (but don't change) some matrix entries in column order.
T	walkInOptimizedOrder(FieldMatrixChangingVisitor<T> visitor)	Visit (and possibly change) all matrix entries using the fastest possible order.
T	walkInOptimizedOrder(FieldMatrixChangingVisitor<T> visitor, int startRow, int endRow, int startColumn, int endColumn)	Visit (and possibly change) some matrix entries using the fastest possible order.
T	walkInOptimizedOrder(FieldMatrixPreservingVisitor<T> visitor)	Visit (but don't change) all matrix entries using the fastest possible order.
T	walkInOptimizedOrder(FieldMatrixPreservingVisitor<T> visitor, int startRow, int endRow, int startColumn, int endColumn)	Visit (but don't change) some matrix entries using the fastest possible order.
T	walkInRowOrder(FieldMatrixChangingVisitor<T> visitor)	Visit (and possibly change) all matrix entries in row order.
T	walkInRowOrder(FieldMatrixChangingVisitor<T> visitor, int startRow, int endRow, int startColumn, int endColumn)	Visit (and possibly change) some matrix entries in row order.
T	walkInRowOrder(FieldMatrixPreservingVisitor<T> visitor)	Visit (but don't change) all matrix entries in row order.
T	walkInRowOrder(FieldMatrixPreservingVisitor<T> visitor, int startRow, int endRow, int startColumn, int endColumn)	Visit (but don't change) some matrix entries in row order.

Methods inherited from interface org.hipparchus.linear.AnyMatrix

getColumnDimension, getRowDimension, isSquare

Method Details

getField

Field<T> getField()

Get the type of field elements of the matrix.

Returns:

the type of field elements of the matrix.

createMatrix

FieldMatrix<T> createMatrix(int rowDimension,
 int columnDimension)
                     throws MathIllegalArgumentException

Create a new FieldMatrix of the same type as the instance with the supplied row and column dimensions.

Parameters:

rowDimension - the number of rows in the new matrix

columnDimension - the number of columns in the new matrix

Returns:

a new matrix of the same type as the instance

Throws:

MathIllegalArgumentException - if row or column dimension is not positive.

copy

FieldMatrix<T> copy()

Make a (deep) copy of this.

Returns:

a copy of this matrix.

add

FieldMatrix<T> add(FieldMatrix<T> m)
            throws MathIllegalArgumentException

Compute the sum of this and m.

Parameters:

m - Matrix to be added.

Returns:

this + m.

Throws:

MathIllegalArgumentException - if m is not the same size as this matrix.

subtract

FieldMatrix<T> subtract(FieldMatrix<T> m)
                 throws MathIllegalArgumentException

Subtract m from this matrix.

Parameters:

m - Matrix to be subtracted.

Returns:

this - m.

Throws:

MathIllegalArgumentException - if m is not the same size as this matrix.

scalarAdd

FieldMatrix<T> scalarAdd(T d)

Increment each entry of this matrix.

Parameters:

d - Value to be added to each entry.

Returns:

d + this.

scalarMultiply

FieldMatrix<T> scalarMultiply(T d)

Multiply each entry by d.

Parameters:

d - Value to multiply all entries by.

Returns:

d * this.

multiply

FieldMatrix<T> multiply(FieldMatrix<T> m)
                 throws MathIllegalArgumentException

Postmultiply this matrix by m.

Parameters:

m - Matrix to postmultiply by.

Returns:

this * m.

Throws:

MathIllegalArgumentException - if the number of columns of this matrix is not equal to the number of rows of matrix m.

multiplyTransposed

default FieldMatrix<T> multiplyTransposed(FieldMatrix<T> m)
                                   throws MathIllegalArgumentException

Returns the result of postmultiplying this by m^T.

This is equivalent to call multiply(m.transpose()), but some implementations may avoid building the intermediate transposed matrix.

Parameters:

m - matrix to first transpose and second postmultiply by

Returns:

this * m^T

Throws:

MathIllegalArgumentException - if columnDimension(this) != columnDimension(m)

Since:

1.3

transposeMultiply

default FieldMatrix<T> transposeMultiply(FieldMatrix<T> m)
                                  throws MathIllegalArgumentException

Returns the result of postmultiplying this^T by m.

This is equivalent to call transpose().multiply(m), but some implementations may avoid building the intermediate transposed matrix.

Parameters:

m - matrix to postmultiply by

Returns:

this^T * m

Throws:

MathIllegalArgumentException - if columnDimension(this) != columnDimension(m)

Since:

1.3

preMultiply

FieldMatrix<T> preMultiply(FieldMatrix<T> m)
                    throws MathIllegalArgumentException

Premultiply this matrix by m.

Parameters:

m - Matrix to premultiply by.

Returns:

m * this.

Throws:

MathIllegalArgumentException - if the number of columns of m differs from the number of rows of this matrix.

power

FieldMatrix<T> power(int p)
              throws MathIllegalArgumentException

Returns the result multiplying this with itself p times. Depending on the type of the field elements, T, instability for high powers might occur.

Parameters:

p - raise this to power p

Returns:

this^p

Throws:

MathIllegalArgumentException - if p < 0

MathIllegalArgumentException - if this matrix is not square

blendArithmeticallyWith

default FieldMatrix<T> blendArithmeticallyWith(FieldMatrix<T> other,
 T blendingValue)

Blend arithmetically this instance with another one.

Specified by:

blendArithmeticallyWith in interface FieldBlendable<FieldMatrix<T extends FieldElement<T>>,T extends FieldElement<T>>

Parameters:

other - other instance to blend arithmetically with

blendingValue - value from smoothstep function B(x). It is expected to be between [0:1] and will throw an exception otherwise.

Returns:

this * (1 - B(x)) + other * B(x)

getData

T[][] getData()

Returns matrix entries as a two-dimensional array.

Returns:

a 2-dimensional array of entries.

getSubMatrix

FieldMatrix<T> getSubMatrix(int startRow,
 int endRow,
 int startColumn,
 int endColumn)
                     throws MathIllegalArgumentException

Get a submatrix. Rows and columns are indicated counting from 0 to n - 1.

Parameters:

startRow - Initial row index

endRow - Final row index (inclusive)

startColumn - Initial column index

endColumn - Final column index (inclusive)

Returns:

the matrix containing the data of the specified rows and columns.

Throws:

MathIllegalArgumentException - is endRow < startRow of endColumn < startColumn.

MathIllegalArgumentException - if the indices are not valid.

getSubMatrix

FieldMatrix<T> getSubMatrix(int[] selectedRows,
 int[] selectedColumns)
                     throws MathIllegalArgumentException,
NullArgumentException

Get a submatrix. Rows and columns are indicated counting from 0 to n - 1.

Parameters:

selectedRows - Array of row indices.

selectedColumns - Array of column indices.

Returns:

the matrix containing the data in the specified rows and columns.

Throws:

MathIllegalArgumentException - if selectedRows or selectedColumns is empty

NullArgumentException - if selectedRows or selectedColumns is null.

MathIllegalArgumentException - if row or column selections are not valid.

copySubMatrix

void copySubMatrix(int startRow,
 int endRow,
 int startColumn,
 int endColumn,
 T[][] destination)
            throws MathIllegalArgumentException

Copy a submatrix. Rows and columns are 0-based. The designated submatrix is copied into the top left portion of the destination array.

Parameters:

startRow - Initial row index.

endRow - Final row index (inclusive).

startColumn - Initial column index.

endColumn - Final column index (inclusive).

destination - The array where the submatrix data should be copied (if larger than rows/columns counts, only the upper-left part will be modified).

Throws:

MathIllegalArgumentException - if the dimensions of destination are not large enough to hold the submatrix.

MathIllegalArgumentException - if endRow < startRow or endColumn < startColumn.

MathIllegalArgumentException - if the indices are not valid.

copySubMatrix

void copySubMatrix(int[] selectedRows,
 int[] selectedColumns,
 T[][] destination)
            throws MathIllegalArgumentException,
NullArgumentException

Copy a submatrix. Rows and columns are indicated counting from 0 to n - 1.

Parameters:

selectedRows - Array of row indices.

selectedColumns - Array of column indices.

destination - Arrays where the submatrix data should be copied (if larger than rows/columns counts, only the upper-left part will be used)

Throws:

MathIllegalArgumentException - if the dimensions of destination do not match those of this.

MathIllegalArgumentException - if selectedRows or selectedColumns is empty

NullArgumentException - if selectedRows or selectedColumns is null.

MathIllegalArgumentException - if the indices are not valid.

setSubMatrix

void setSubMatrix(T[][] subMatrix,
 int row,
 int column)
           throws MathIllegalArgumentException,
NullArgumentException

Replace the submatrix starting at (row, column) using data in the input subMatrix array. Indexes are 0-based.

Example:
Starting with

 1  2  3  4
 5  6  7  8
 9  0  1  2
 

and subMatrix = {{3, 4} {5,6}}, invoking setSubMatrix(subMatrix,1,1)) will result in

 1  2  3  4
 5  3  4  8
 9  5  6  2
 

Parameters:

subMatrix - Array containing the submatrix replacement data.

row - Row coordinate of the top-left element to be replaced.

column - Column coordinate of the top-left element to be replaced.

Throws:

MathIllegalArgumentException - if subMatrix does not fit into this matrix from element in (row, column).

MathIllegalArgumentException - if a row or column of subMatrix is empty.

MathIllegalArgumentException - if subMatrix is not rectangular (not all rows have the same length).

NullArgumentException - if subMatrix is null.

getRowMatrix

FieldMatrix<T> getRowMatrix(int row)
                     throws MathIllegalArgumentException

Get the entries in row number row as a row matrix.

Parameters:

row - Row to be fetched.

Returns:

a row matrix.

Throws:

MathIllegalArgumentException - if the specified row index is invalid.

setRowMatrix

void setRowMatrix(int row,
 FieldMatrix<T> matrix)
           throws MathIllegalArgumentException

Set the entries in row number row as a row matrix.

Parameters:

row - Row to be set.

matrix - Row matrix (must have one row and the same number of columns as the instance).

Throws:

MathIllegalArgumentException - if the specified row index is invalid.

MathIllegalArgumentException - if the matrix dimensions do not match one instance row.

getColumnMatrix

FieldMatrix<T> getColumnMatrix(int column)
                        throws MathIllegalArgumentException

Get the entries in column number column as a column matrix.

Parameters:

column - Column to be fetched.

Returns:

a column matrix.

Throws:

MathIllegalArgumentException - if the specified column index is invalid.

setColumnMatrix

void setColumnMatrix(int column,
 FieldMatrix<T> matrix)
              throws MathIllegalArgumentException

Set the entries in column number column as a column matrix.

Parameters:

column - Column to be set.

matrix - column matrix (must have one column and the same number of rows as the instance).

Throws:

MathIllegalArgumentException - if the specified column index is invalid.

MathIllegalArgumentException - if the matrix dimensions do not match one instance column.

getRowVector

FieldVector<T> getRowVector(int row)
                     throws MathIllegalArgumentException

Get the entries in row number row as a vector.

Parameters:

row - Row to be fetched

Returns:

a row vector.

Throws:

MathIllegalArgumentException - if the specified row index is invalid.

setRowVector

void setRowVector(int row,
 FieldVector<T> vector)
           throws MathIllegalArgumentException

Set the entries in row number row as a vector.

Parameters:

row - Row to be set.

vector - row vector (must have the same number of columns as the instance).

Throws:

MathIllegalArgumentException - if the specified row index is invalid.

MathIllegalArgumentException - if the vector dimension does not match one instance row.

getColumnVector

FieldVector<T> getColumnVector(int column)
                        throws MathIllegalArgumentException

Returns the entries in column number column as a vector.

Parameters:

column - Column to be fetched.

Returns:

a column vector.

Throws:

MathIllegalArgumentException - if the specified column index is invalid.

setColumnVector

void setColumnVector(int column,
 FieldVector<T> vector)
              throws MathIllegalArgumentException

Set the entries in column number column as a vector.

Parameters:

column - Column to be set.

vector - Column vector (must have the same number of rows as the instance).

Throws:

MathIllegalArgumentException - if the specified column index is invalid.

MathIllegalArgumentException - if the vector dimension does not match one instance column.

getRow

T[] getRow(int row)
    throws MathIllegalArgumentException

Get the entries in row number row as an array.

Parameters:

row - Row to be fetched.

Returns:

array of entries in the row.

Throws:

MathIllegalArgumentException - if the specified row index is not valid.

setRow

void setRow(int row,
 T[] array)
     throws MathIllegalArgumentException

Set the entries in row number row as a row matrix.

Parameters:

row - Row to be set.

array - Row matrix (must have the same number of columns as the instance).

Throws:

MathIllegalArgumentException - if the specified row index is invalid.

MathIllegalArgumentException - if the array size does not match one instance row.

getColumn

T[] getColumn(int column)
       throws MathIllegalArgumentException

Get the entries in column number col as an array.

Parameters:

column - the column to be fetched

Returns:

array of entries in the column

Throws:

MathIllegalArgumentException - if the specified column index is not valid.

setColumn

void setColumn(int column,
 T[] array)
        throws MathIllegalArgumentException

Set the entries in column number column as a column matrix.

Parameters:

column - the column to be set

array - column array (must have the same number of rows as the instance)

Throws:

MathIllegalArgumentException - if the specified column index is invalid.

MathIllegalArgumentException - if the array size does not match one instance column.

getEntry

T getEntry(int row,
 int column)
    throws MathIllegalArgumentException

Returns the entry in the specified row and column.

Parameters:

row - row location of entry to be fetched

column - column location of entry to be fetched

Returns:

matrix entry in row,column

Throws:

MathIllegalArgumentException - if the row or column index is not valid.

setEntry

void setEntry(int row,
 int column,
 T value)
       throws MathIllegalArgumentException

Set the entry in the specified row and column.

Parameters:

row - row location of entry to be set

column - column location of entry to be set

value - matrix entry to be set in row,column

Throws:

MathIllegalArgumentException - if the row or column index is not valid.

addToEntry

void addToEntry(int row,
 int column,
 T increment)
         throws MathIllegalArgumentException

Change an entry in the specified row and column.

Parameters:

row - Row location of entry to be set.

column - Column location of entry to be set.

increment - Value to add to the current matrix entry in (row, column).

Throws:

MathIllegalArgumentException - if the row or column index is not valid.

multiplyEntry

void multiplyEntry(int row,
 int column,
 T factor)
            throws MathIllegalArgumentException

Change an entry in the specified row and column.

Parameters:

row - Row location of entry to be set.

column - Column location of entry to be set.

factor - Multiplication factor for the current matrix entry in (row,column)

Throws:

MathIllegalArgumentException - if the row or column index is not valid.

transpose

FieldMatrix<T> transpose()

Returns the transpose of this matrix.

Returns:

transpose matrix

getTrace

T getTrace()
    throws MathIllegalArgumentException

Returns the trace of the matrix (the sum of the elements on the main diagonal).

Returns:

trace

Throws:

MathIllegalArgumentException - if the matrix is not square.

operate

T[] operate(T[] v)
     throws MathIllegalArgumentException

Returns the result of multiplying this by the vector v.

Parameters:

v - the vector to operate on

Returns:

this * v

Throws:

MathIllegalArgumentException - if the number of columns of this matrix is not equal to the size of the vector v.

operate

FieldVector<T> operate(FieldVector<T> v)
                throws MathIllegalArgumentException

Returns the result of multiplying this by the vector v.

Parameters:

v - the vector to operate on

Returns:

this * v

Throws:

MathIllegalArgumentException - if the number of columns of this matrix is not equal to the size of the vector v.

preMultiply

T[] preMultiply(T[] v)
         throws MathIllegalArgumentException

Returns the (row) vector result of premultiplying this by the vector v.

Parameters:

v - the row vector to premultiply by

Returns:

v * this

Throws:

MathIllegalArgumentException - if the number of rows of this matrix is not equal to the size of the vector v

preMultiply

FieldVector<T> preMultiply(FieldVector<T> v)
                    throws MathIllegalArgumentException

Returns the (row) vector result of premultiplying this by the vector v.

Parameters:

v - the row vector to premultiply by

Returns:

v * this

Throws:

MathIllegalArgumentException - if the number of rows of this matrix is not equal to the size of the vector v

walkInRowOrder

T walkInRowOrder(FieldMatrixChangingVisitor<T> visitor)

Visit (and possibly change) all matrix entries in row order.

Row order starts at upper left and iterating through all elements of a row from left to right before going to the leftmost element of the next row.

Parameters:

visitor - visitor used to process all matrix entries

Returns:

the value returned by FieldMatrixChangingVisitor.end() at the end of the walk

See Also:

• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInRowOrder

T walkInRowOrder(FieldMatrixPreservingVisitor<T> visitor)

Visit (but don't change) all matrix entries in row order.

Row order starts at upper left and iterating through all elements of a row from left to right before going to the leftmost element of the next row.

Parameters:

visitor - visitor used to process all matrix entries

Returns:

the value returned by FieldMatrixPreservingVisitor.end() at the end of the walk

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInRowOrder

T walkInRowOrder(FieldMatrixChangingVisitor<T> visitor,
 int startRow,
 int endRow,
 int startColumn,
 int endColumn)
          throws MathIllegalArgumentException

Visit (and possibly change) some matrix entries in row order.

Row order starts at upper left and iterating through all elements of a row from left to right before going to the leftmost element of the next row.

Parameters:

visitor - visitor used to process all matrix entries

startRow - Initial row index

endRow - Final row index (inclusive)

startColumn - Initial column index

endColumn - Final column index

Returns:

the value returned by FieldMatrixChangingVisitor.end() at the end of the walk

Throws:

MathIllegalArgumentException - if the indices are not valid.

MathIllegalArgumentException - if endRow < startRow or endColumn < startColumn.

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInRowOrder

T walkInRowOrder(FieldMatrixPreservingVisitor<T> visitor,
 int startRow,
 int endRow,
 int startColumn,
 int endColumn)
          throws MathIllegalArgumentException

Visit (but don't change) some matrix entries in row order.

Row order starts at upper left and iterating through all elements of a row from left to right before going to the leftmost element of the next row.

Parameters:

visitor - visitor used to process all matrix entries

startRow - Initial row index

endRow - Final row index (inclusive)

startColumn - Initial column index

endColumn - Final column index

Returns:

the value returned by FieldMatrixPreservingVisitor.end() at the end of the walk

Throws:

MathIllegalArgumentException - if the indices are not valid.

MathIllegalArgumentException - if endRow < startRow or endColumn < startColumn.

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInColumnOrder

T walkInColumnOrder(FieldMatrixChangingVisitor<T> visitor)

Visit (and possibly change) all matrix entries in column order.

Column order starts at upper left and iterating through all elements of a column from top to bottom before going to the topmost element of the next column.

Parameters:

visitor - visitor used to process all matrix entries

Returns:

the value returned by FieldMatrixChangingVisitor.end() at the end of the walk

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInColumnOrder

T walkInColumnOrder(FieldMatrixPreservingVisitor<T> visitor)

Visit (but don't change) all matrix entries in column order.

Column order starts at upper left and iterating through all elements of a column from top to bottom before going to the topmost element of the next column.

Parameters:

visitor - visitor used to process all matrix entries

Returns:

the value returned by FieldMatrixPreservingVisitor.end() at the end of the walk

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInColumnOrder

T walkInColumnOrder(FieldMatrixChangingVisitor<T> visitor,
 int startRow,
 int endRow,
 int startColumn,
 int endColumn)
             throws MathIllegalArgumentException

Visit (and possibly change) some matrix entries in column order.

Column order starts at upper left and iterating through all elements of a column from top to bottom before going to the topmost element of the next column.

Parameters:

visitor - visitor used to process all matrix entries

startRow - Initial row index

endRow - Final row index (inclusive)

startColumn - Initial column index

endColumn - Final column index

Returns:

the value returned by FieldMatrixChangingVisitor.end() at the end of the walk

Throws:

MathIllegalArgumentException - if endRow < startRow or endColumn < startColumn.

MathIllegalArgumentException - if the indices are not valid.

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInColumnOrder

T walkInColumnOrder(FieldMatrixPreservingVisitor<T> visitor,
 int startRow,
 int endRow,
 int startColumn,
 int endColumn)
             throws MathIllegalArgumentException

Visit (but don't change) some matrix entries in column order.

Column order starts at upper left and iterating through all elements of a column from top to bottom before going to the topmost element of the next column.

Parameters:

visitor - visitor used to process all matrix entries

startRow - Initial row index

endRow - Final row index (inclusive)

startColumn - Initial column index

endColumn - Final column index

Returns:

the value returned by FieldMatrixPreservingVisitor.end() at the end of the walk

Throws:

MathIllegalArgumentException - if endRow < startRow or endColumn < startColumn.

MathIllegalArgumentException - if the indices are not valid.

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInOptimizedOrder

T walkInOptimizedOrder(FieldMatrixChangingVisitor<T> visitor)

Visit (and possibly change) all matrix entries using the fastest possible order.

The fastest walking order depends on the exact matrix class. It may be different from traditional row or column orders.

Parameters:

visitor - visitor used to process all matrix entries

Returns:

the value returned by FieldMatrixChangingVisitor.end() at the end of the walk

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInOptimizedOrder

T walkInOptimizedOrder(FieldMatrixPreservingVisitor<T> visitor)

Visit (but don't change) all matrix entries using the fastest possible order.

The fastest walking order depends on the exact matrix class. It may be different from traditional row or column orders.

Parameters:

visitor - visitor used to process all matrix entries

Returns:

the value returned by FieldMatrixPreservingVisitor.end() at the end of the walk

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInOptimizedOrder

T walkInOptimizedOrder(FieldMatrixChangingVisitor<T> visitor,
 int startRow,
 int endRow,
 int startColumn,
 int endColumn)
                throws MathIllegalArgumentException

Visit (and possibly change) some matrix entries using the fastest possible order.

The fastest walking order depends on the exact matrix class. It may be different from traditional row or column orders.

Parameters:

visitor - visitor used to process all matrix entries

startRow - Initial row index

endRow - Final row index (inclusive)

startColumn - Initial column index

endColumn - Final column index (inclusive)

Returns:

the value returned by FieldMatrixChangingVisitor.end() at the end of the walk

Throws:

MathIllegalArgumentException - if endRow < startRow or endColumn < startColumn.

MathIllegalArgumentException - if the indices are not valid.

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor, int, int, int, int)

walkInOptimizedOrder

T walkInOptimizedOrder(FieldMatrixPreservingVisitor<T> visitor,
 int startRow,
 int endRow,
 int startColumn,
 int endColumn)
                throws MathIllegalArgumentException

Visit (but don't change) some matrix entries using the fastest possible order.

The fastest walking order depends on the exact matrix class. It may be different from traditional row or column orders.

Parameters:

visitor - visitor used to process all matrix entries

startRow - Initial row index

endRow - Final row index (inclusive)

startColumn - Initial column index

endColumn - Final column index (inclusive)

Returns:

the value returned by FieldMatrixPreservingVisitor.end() at the end of the walk

Throws:

MathIllegalArgumentException - if endRow < startRow or endColumn < startColumn.

MathIllegalArgumentException - if the indices are not valid.

See Also:

• walkInRowOrder(FieldMatrixChangingVisitor)
• walkInRowOrder(FieldMatrixPreservingVisitor)
• walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixChangingVisitor)
• walkInColumnOrder(FieldMatrixPreservingVisitor)
• walkInColumnOrder(FieldMatrixChangingVisitor, int, int, int, int)
• walkInColumnOrder(FieldMatrixPreservingVisitor, int, int, int, int)
• walkInOptimizedOrder(FieldMatrixChangingVisitor)
• walkInOptimizedOrder(FieldMatrixPreservingVisitor)
• walkInOptimizedOrder(FieldMatrixChangingVisitor, int, int, int, int)

map

default FieldMatrix<T> map(Function<T,T> function)

Acts as if implemented as:

  return copy().mapToSelf(function);
 

Returns a new matrix. Does not change instance data.

Parameters:

function - Function to apply to each entry.

Returns:

a new matrix.

Since:

1.7

mapToSelf

default FieldMatrix<T> mapToSelf(Function<T,T> function)

Replace each entry by the result of applying the function to it.

Parameters:

function - Function to apply to each entry.

Returns:

a reference to this matrix.

Since:

1.7