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## org.apache.commons.math3.linear
Class SparseFieldMatrix<T extends FieldElement<T>>

    java.lang.Object
      org.apache.commons.math3.linear.AbstractFieldMatrix<T>
          org.apache.commons.math3.linear.SparseFieldMatrix<T>

Type Parameters:
  `T` - the type of the field elements

All Implemented Interfaces:
  AnyMatrix, FieldMatrix<T>

Deprecated. As of version 3.1, this class is deprecated, for reasons exposed in this JIRA ticket. This class will be removed in version 4.0.

    @Deprecated
    public class SparseFieldMatrix<T extends FieldElement<T>>

extends AbstractFieldMatrix<T>

Sparse matrix implementation based on an open addressed map.

Since:
  2.0
Version:
  $Id: SparseFieldMatrix.java 1416643 2012-12-03 19:37:14Z tn $

Constructor Summary
`SparseFieldMatrix(Field<T> field)` Deprecated. Create a matrix with no data.
`SparseFieldMatrix(Field<T> field, int rowDimension, int columnDimension)` Deprecated. Create a new SparseFieldMatrix with the supplied row and column dimensions.
`SparseFieldMatrix(FieldMatrix<T> other)` Deprecated. Generic copy constructor.
`SparseFieldMatrix(SparseFieldMatrix<T> other)` Deprecated. Copy constructor.

Method Summary
`void` | `addToEntry(int row, int column, T increment)` Deprecated. Change an entry in the specified row and column.
`FieldMatrix<T>` | `copy()` Deprecated. Make a (deep) copy of this.
`FieldMatrix<T>` | `createMatrix(int rowDimension, int columnDimension)` Deprecated. Create a new FieldMatrix of the same type as the instance with the supplied row and column dimensions.
`int` | `getColumnDimension()` Deprecated. Returns the number of columns in the matrix.
`T` | `getEntry(int row, int column)` Deprecated. Returns the entry in the specified row and column.
`int` | `getRowDimension()` Deprecated. Returns the number of rows in the matrix.
`void` | `multiplyEntry(int row, int column, T factor)` Deprecated. Change an entry in the specified row and column.
`void` | `setEntry(int row, int column, T value)` Deprecated. Set the entry in the specified row and column.

Methods inherited from class org.apache.commons.math3.linear.AbstractFieldMatrix
`add, buildArray, buildArray, checkAdditionCompatible, checkColumnIndex, checkMultiplicationCompatible, checkRowIndex, checkSubMatrixIndex, checkSubMatrixIndex, checkSubtractionCompatible, copySubMatrix, copySubMatrix, equals, extractField, extractField, getColumn, getColumnMatrix, getColumnVector, getData, getField, getRow, getRowMatrix, getRowVector, getSubMatrix, getSubMatrix, getTrace, hashCode, isSquare, multiply, operate, operate, power, preMultiply, preMultiply, preMultiply, scalarAdd, scalarMultiply, setColumn, setColumnMatrix, setColumnVector, setRow, setRowMatrix, setRowVector, setSubMatrix, subtract, toString, transpose, walkInColumnOrder, walkInColumnOrder, walkInColumnOrder, walkInColumnOrder, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder, walkInRowOrder, walkInRowOrder, walkInRowOrder, walkInRowOrder`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Constructor Detail

### SparseFieldMatrix

    public SparseFieldMatrix(Field<T> field)

  Deprecated.
  Create a matrix with no data.

  Parameters:
    `field` - Field to which the elements belong.

### SparseFieldMatrix

    public SparseFieldMatrix(Field<T> field,
                             int rowDimension,
                             int columnDimension)

  Deprecated.
  Create a new SparseFieldMatrix with the supplied row and column dimensions.

  Parameters:
    `field` - Field to which the elements belong.
    `rowDimension` - Number of rows in the new matrix.
    `columnDimension` - Number of columns in the new matrix.
  Throws:
    `NotStrictlyPositiveException` - if row or column dimension is not positive.

### SparseFieldMatrix

    public SparseFieldMatrix(SparseFieldMatrix<T> other)

  Deprecated.
  Copy constructor.

  Parameters:
    `other` - Instance to copy.

### SparseFieldMatrix

    public SparseFieldMatrix(FieldMatrix<T> other)

  Deprecated.
  Generic copy constructor.

  Parameters:
    `other` - Instance to copy.

Method Detail

### addToEntry

    public void addToEntry(int row,
                           int column,
                           T increment)

  Deprecated.
  Change an entry in the specified row and column.

  Specified by:
    `addToEntry` in interface `FieldMatrix<T extends FieldElement<T>>`
  Specified by:
    `addToEntry` in class `AbstractFieldMatrix<T extends FieldElement<T>>`
  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)`.

### copy

    public FieldMatrix<T> copy()

  Deprecated.
  Make a (deep) copy of this.

  Specified by:
    `copy` in interface `FieldMatrix<T extends FieldElement<T>>`
  Specified by:
    `copy` in class `AbstractFieldMatrix<T extends FieldElement<T>>`
  Returns:
    a copy of this matrix.

### createMatrix

    public FieldMatrix<T> createMatrix(int rowDimension,
                                       int columnDimension)

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

  Specified by:
    `createMatrix` in interface `FieldMatrix<T extends FieldElement<T>>`
  Specified by:
    `createMatrix` in class `AbstractFieldMatrix<T extends FieldElement<T>>`
  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

### getColumnDimension

    public int getColumnDimension()

  Deprecated.
  Returns the number of columns in the matrix.

  Specified by:
    `getColumnDimension` in interface `AnyMatrix`
  Specified by:
    `getColumnDimension` in class `AbstractFieldMatrix<T extends FieldElement<T>>`
  Returns:
    columnDimension

### getEntry

    public T getEntry(int row,
                      int column)

  Deprecated.
  Returns the entry in the specified row and column.

  Specified by:
    `getEntry` in interface `FieldMatrix<T extends FieldElement<T>>`
  Specified by:
    `getEntry` in class `AbstractFieldMatrix<T extends FieldElement<T>>`
  Parameters:
    `row` - row location of entry to be fetched
    `column` - column location of entry to be fetched
  Returns:
    matrix entry in row,column

### getRowDimension

    public int getRowDimension()

  Deprecated.
  Returns the number of rows in the matrix.

  Specified by:
    `getRowDimension` in interface `AnyMatrix`
  Specified by:
    `getRowDimension` in class `AbstractFieldMatrix<T extends FieldElement<T>>`
  Returns:
    rowDimension

### multiplyEntry

    public void multiplyEntry(int row,
                              int column,
                              T factor)

  Deprecated.
  Change an entry in the specified row and column.

  Specified by:
    `multiplyEntry` in interface `FieldMatrix<T extends FieldElement<T>>`
  Specified by:
    `multiplyEntry` in class `AbstractFieldMatrix<T extends FieldElement<T>>`
  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)`

### setEntry

    public void setEntry(int row,
                         int column,
                         T value)

  Deprecated.
  Set the entry in the specified row and column.

  Specified by:
    `setEntry` in interface `FieldMatrix<T extends FieldElement<T>>`
  Specified by:
    `setEntry` in class `AbstractFieldMatrix<T extends FieldElement<T>>`
  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

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