Uses of Interface
org.apache.commons.math4.FieldElement

Packages that use FieldElement

Package	Description
org.apache.commons.math4	Common classes used throughout the commons-math library.
org.apache.commons.math4.analysis.differentiation	This package holds the main interfaces and basic building block classes dealing with differentiation.
org.apache.commons.math4.analysis.interpolation	Univariate real functions interpolation algorithms.
org.apache.commons.math4.fraction	Fraction number type and fraction number formatting.
org.apache.commons.math4.linear	Linear algebra support.
org.apache.commons.math4.util	Convenience routines and common data structures used throughout the commons-math library.

Uses of FieldElement in org.apache.commons.math4

Subinterfaces of FieldElement in org.apache.commons.math4

Modifier and Type	Interface	Description
interface	RealFieldElement<T>	Interface representing a real field.

Methods in org.apache.commons.math4 that return types with arguments of type FieldElement

Modifier and Type	Method	Description
java.lang.Class<? extends FieldElement<T>>	Field.getRuntimeClass()	Returns the runtime class of the FieldElement.

Uses of FieldElement in org.apache.commons.math4.analysis.differentiation

Classes in org.apache.commons.math4.analysis.differentiation that implement FieldElement

Modifier and Type	Class	Description
class	DerivativeStructure	Class representing both the value and the differentials of a function.
class	SparseGradient	First derivative computation with large number of variables.

Uses of FieldElement in org.apache.commons.math4.analysis.interpolation

Classes in org.apache.commons.math4.analysis.interpolation with type parameters of type FieldElement

Modifier and Type	Class	Description
class	FieldHermiteInterpolator<T extends FieldElement<T>>	Polynomial interpolator using both sample values and sample derivatives.

Methods in org.apache.commons.math4.analysis.interpolation that return FieldElement

Modifier and Type	Method	Description
T[][]	FieldHermiteInterpolator.derivatives(T x, int order)	Interpolate value and first derivatives at a specified abscissa.
T[]	FieldHermiteInterpolator.value(T x)	Interpolate value at a specified abscissa.

Methods in org.apache.commons.math4.analysis.interpolation with parameters of type FieldElement

Modifier and Type	Method	Description
void	FieldHermiteInterpolator.addSamplePoint(T x, T[]... value)	Add a sample point.

Uses of FieldElement in org.apache.commons.math4.fraction

Classes in org.apache.commons.math4.fraction that implement FieldElement

Modifier and Type	Class	Description
class	BigFraction	Representation of a rational number without any overflow.
class	Fraction	Representation of a rational number.

Methods in org.apache.commons.math4.fraction that return types with arguments of type FieldElement

Modifier and Type	Method	Description
java.lang.Class<? extends FieldElement<BigFraction>>	BigFractionField.getRuntimeClass()	Returns the runtime class of the FieldElement.
java.lang.Class<? extends FieldElement<Fraction>>	FractionField.getRuntimeClass()	Returns the runtime class of the FieldElement.

Uses of FieldElement in org.apache.commons.math4.linear

Classes in org.apache.commons.math4.linear with type parameters of type FieldElement

Modifier and Type	Class	Description
class	AbstractFieldMatrix<T extends FieldElement<T>>	Basic implementation of FieldMatrix methods regardless of the underlying storage.
class	Array2DRowFieldMatrix<T extends FieldElement<T>>	Implementation of FieldMatrix<T> using a FieldElement[][] array to store entries.
class	ArrayFieldVector<T extends FieldElement<T>>	This class implements the FieldVector interface with a FieldElement array.
class	BlockFieldMatrix<T extends FieldElement<T>>	Cache-friendly implementation of FieldMatrix using a flat arrays to store square blocks of the matrix.
class	DefaultFieldMatrixChangingVisitor<T extends FieldElement<T>>	Default implementation of the FieldMatrixChangingVisitor interface.
class	DefaultFieldMatrixPreservingVisitor<T extends FieldElement<T>>	Default implementation of the FieldMatrixPreservingVisitor interface.
interface	FieldDecompositionSolver<T extends FieldElement<T>>	Interface handling decomposition algorithms that can solve A × X = B.
class	FieldLUDecomposition<T extends FieldElement<T>>	Calculates the LUP-decomposition of a square matrix.
interface	FieldMatrix<T extends FieldElement<T>>	Interface defining field-valued matrix with basic algebraic operations.
interface	FieldMatrixChangingVisitor<T extends FieldElement<?>>	Interface defining a visitor for matrix entries.
interface	FieldMatrixPreservingVisitor<T extends FieldElement<?>>	Interface defining a visitor for matrix entries.
interface	FieldVector<T extends FieldElement<T>>	Interface defining a field-valued vector with basic algebraic operations.
interface	FieldVectorChangingVisitor<T extends FieldElement<?>>	This interface defines a visitor for the entries of a vector.
interface	FieldVectorPreservingVisitor<T extends FieldElement<?>>	This interface defines a visitor for the entries of a vector.
class	SparseFieldMatrix<T extends FieldElement<T>>	Sparse matrix implementation based on an open addressed map.
class	SparseFieldVector<T extends FieldElement<T>>	This class implements the FieldVector interface with a OpenIntToFieldHashMap backing store.

Methods in org.apache.commons.math4.linear with type parameters of type FieldElement

Modifier and Type	Method	Description
static <T extends FieldElement<T>> T[][]	BlockFieldMatrix.createBlocksLayout(Field<T> field, int rows, int columns)	Create a data array in blocks layout.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createColumnFieldMatrix(T[] columnData)	Creates a column FieldMatrix using the data from the input array.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createFieldDiagonalMatrix(T[] diagonal)	Returns a diagonal matrix with specified elements.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createFieldIdentityMatrix(Field<T> field, int dimension)	Returns dimension x dimension identity matrix.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createFieldMatrix(Field<T> field, int rows, int columns)	Returns a FieldMatrix with specified dimensions.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createFieldMatrix(T[][] data)	Returns a FieldMatrix whose entries are the values in the the input array.
static <T extends FieldElement<T>> FieldVector<T>	MatrixUtils.createFieldVector(T[] data)	Creates a FieldVector using the data from the input array.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createRowFieldMatrix(T[] rowData)	Create a row FieldMatrix using the data from the input array.
protected static <T extends FieldElement<T>> Field<T>	AbstractFieldMatrix.extractField(T[] d)	Get the elements type from an array.
protected static <T extends FieldElement<T>> Field<T>	AbstractFieldMatrix.extractField(T[][] d)	Get the elements type from an array.
static <T extends FieldElement<T>> T[][]	BlockFieldMatrix.toBlocksLayout(T[][] rawData)	Convert a data array from raw layout to blocks layout.

Methods in org.apache.commons.math4.linear that return FieldElement

Modifier and Type	Method	Description
static <T extends FieldElement<T>> T[][]	BlockFieldMatrix.createBlocksLayout(Field<T> field, int rows, int columns)	Create a data array in blocks layout.
T[]	AbstractFieldMatrix.getColumn(int column)	Get the entries in column number col as an array.
T[]	BlockFieldMatrix.getColumn(int column)	Get the entries in column number col as an array.
T[]	FieldMatrix.getColumn(int column)	Get the entries in column number col as an array.
T[][]	AbstractFieldMatrix.getData()	Returns matrix entries as a two-dimensional array.
T[][]	Array2DRowFieldMatrix.getData()	Returns matrix entries as a two-dimensional array.
T[][]	BlockFieldMatrix.getData()	Returns matrix entries as a two-dimensional array.
T[][]	FieldMatrix.getData()	Returns matrix entries as a two-dimensional array.
T[][]	Array2DRowFieldMatrix.getDataRef()	Get a reference to the underlying data array.
T[]	ArrayFieldVector.getDataRef()	Returns a reference to the underlying data array.
T[]	AbstractFieldMatrix.getRow(int row)	Get the entries in row number row as an array.
T[]	BlockFieldMatrix.getRow(int row)	Get the entries in row number row as an array.
T[]	FieldMatrix.getRow(int row)	Get the entries in row number row as an array.
T[]	AbstractFieldMatrix.operate(T[] v)	Returns the result of multiplying this by the vector v.
T[]	Array2DRowFieldMatrix.operate(T[] v)	Returns the result of multiplying this by the vector v.
T[]	BlockFieldMatrix.operate(T[] v)	Returns the result of multiplying this by the vector v.
T[]	FieldMatrix.operate(T[] v)	Returns the result of multiplying this by the vector v.
T[]	AbstractFieldMatrix.preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
T[]	Array2DRowFieldMatrix.preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
T[]	BlockFieldMatrix.preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
T[]	FieldMatrix.preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
T[]	ArrayFieldVector.toArray()	Convert the vector to a T array.
T[]	FieldVector.toArray()	Convert the vector to a T array.
T[]	SparseFieldVector.toArray()	Convert the vector to a T array.
static <T extends FieldElement<T>> T[][]	BlockFieldMatrix.toBlocksLayout(T[][] rawData)	Convert a data array from raw layout to blocks layout.

Methods in org.apache.commons.math4.linear with parameters of type FieldElement

Modifier and Type	Method	Description
void	AbstractFieldMatrix.copySubMatrix(int[] selectedRows, int[] selectedColumns, T[][] destination)	Copy a submatrix.
void	AbstractFieldMatrix.copySubMatrix(int startRow, int endRow, int startColumn, int endColumn, T[][] destination)	Copy a submatrix.
void	FieldMatrix.copySubMatrix(int[] selectedRows, int[] selectedColumns, T[][] destination)	Copy a submatrix.
void	FieldMatrix.copySubMatrix(int startRow, int endRow, int startColumn, int endColumn, T[][] destination)	Copy a submatrix.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createColumnFieldMatrix(T[] columnData)	Creates a column FieldMatrix using the data from the input array.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createFieldDiagonalMatrix(T[] diagonal)	Returns a diagonal matrix with specified elements.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createFieldMatrix(T[][] data)	Returns a FieldMatrix whose entries are the values in the the input array.
static <T extends FieldElement<T>> FieldVector<T>	MatrixUtils.createFieldVector(T[] data)	Creates a FieldVector using the data from the input array.
static <T extends FieldElement<T>> FieldMatrix<T>	MatrixUtils.createRowFieldMatrix(T[] rowData)	Create a row FieldMatrix using the data from the input array.
protected static <T extends FieldElement<T>> Field<T>	AbstractFieldMatrix.extractField(T[] d)	Get the elements type from an array.
protected static <T extends FieldElement<T>> Field<T>	AbstractFieldMatrix.extractField(T[][] d)	Get the elements type from an array.
T[]	AbstractFieldMatrix.operate(T[] v)	Returns the result of multiplying this by the vector v.
T[]	Array2DRowFieldMatrix.operate(T[] v)	Returns the result of multiplying this by the vector v.
T[]	BlockFieldMatrix.operate(T[] v)	Returns the result of multiplying this by the vector v.
T[]	FieldMatrix.operate(T[] v)	Returns the result of multiplying this by the vector v.
T[]	AbstractFieldMatrix.preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
T[]	Array2DRowFieldMatrix.preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
T[]	BlockFieldMatrix.preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
T[]	FieldMatrix.preMultiply(T[] v)	Returns the (row) vector result of premultiplying this by the vector v.
void	AbstractFieldMatrix.setColumn(int column, T[] array)	Set the entries in column number column as a column matrix.
void	BlockFieldMatrix.setColumn(int column, T[] array)	Set the entries in column number column as a column matrix.
void	FieldMatrix.setColumn(int column, T[] array)	Set the entries in column number column as a column matrix.
void	AbstractFieldMatrix.setRow(int row, T[] array)	Set the entries in row number row as a row matrix.
void	BlockFieldMatrix.setRow(int row, T[] array)	Set the entries in row number row as a row matrix.
void	FieldMatrix.setRow(int row, T[] array)	Set the entries in row number row as a row matrix.
void	AbstractFieldMatrix.setSubMatrix(T[][] subMatrix, int row, int column)	Replace the submatrix starting at (row, column) using data in the input subMatrix array.
void	Array2DRowFieldMatrix.setSubMatrix(T[][] subMatrix, int row, int column)	Replace the submatrix starting at (row, column) using data in the input subMatrix array.
void	BlockFieldMatrix.setSubMatrix(T[][] subMatrix, int row, int column)	Replace the submatrix starting at (row, column) using data in the input subMatrix array.
void	FieldMatrix.setSubMatrix(T[][] subMatrix, int row, int column)	Replace the submatrix starting at (row, column) using data in the input subMatrix array.
static <T extends FieldElement<T>> T[][]	BlockFieldMatrix.toBlocksLayout(T[][] rawData)	Convert a data array from raw layout to blocks layout.

Constructors in org.apache.commons.math4.linear with parameters of type FieldElement

Constructor	Description
Array2DRowFieldMatrix(Field<T> field, T[] v)	Create a new (column) FieldMatrix<T> using v as the data for the unique column of the created matrix.
Array2DRowFieldMatrix(Field<T> field, T[][] d)	Create a new FieldMatrix<T> using the input array as the underlying data array.
Array2DRowFieldMatrix(Field<T> field, T[][] d, boolean copyArray)	Create a new FieldMatrix<T> using the input array as the underlying data array.
Array2DRowFieldMatrix(T[] v)	Create a new (column) FieldMatrix<T> using v as the data for the unique column of the created matrix.
Array2DRowFieldMatrix(T[][] d)	Create a new FieldMatrix<T> using the input array as the underlying data array.
Array2DRowFieldMatrix(T[][] d, boolean copyArray)	Create a new FieldMatrix<T> using the input array as the underlying data array.
ArrayFieldVector(Field<T> field, T[] d)	Construct a vector from an array, copying the input array.
ArrayFieldVector(Field<T> field, T[] d, boolean copyArray)	Create a new ArrayFieldVector using the input array as the underlying data array.
ArrayFieldVector(Field<T> field, T[] d, int pos, int size)	Construct a vector from part of a array.
ArrayFieldVector(Field<T> field, T[] v1, T[] v2)	Construct a vector by appending one vector to another vector.
ArrayFieldVector(FieldVector<T> v1, T[] v2)	Construct a vector by appending one vector to another vector.
ArrayFieldVector(T[] d)	Construct a vector from an array, copying the input array.
ArrayFieldVector(T[] d, boolean copyArray)	Create a new ArrayFieldVector using the input array as the underlying data array.
ArrayFieldVector(T[] d, int pos, int size)	Construct a vector from part of a array.
ArrayFieldVector(T[] v1, FieldVector<T> v2)	Construct a vector by appending one vector to another vector.
ArrayFieldVector(T[] v1, T[] v2)	Construct a vector by appending one vector to another vector.
BlockFieldMatrix(int rows, int columns, T[][] blockData, boolean copyArray)	Create a new dense matrix copying entries from block layout data.
BlockFieldMatrix(T[][] rawData)	Create a new dense matrix copying entries from raw layout data.
SparseFieldVector(Field<T> field, T[] values)	Create from a Field array.

Uses of FieldElement in org.apache.commons.math4.util

Classes in org.apache.commons.math4.util with type parameters of type FieldElement

Modifier and Type	Class	Description
class	OpenIntToFieldHashMap<T extends FieldElement<T>>	Open addressed map from int to FieldElement.

Classes in org.apache.commons.math4.util that implement FieldElement

Modifier and Type	Class	Description
class	BigReal	Arbitrary precision decimal number.
class	Decimal64	This class wraps a double value in an object.

Methods in org.apache.commons.math4.util that return types with arguments of type FieldElement

Modifier and Type	Method	Description
java.lang.Class<? extends FieldElement<BigReal>>	BigRealField.getRuntimeClass()	Returns the runtime class of the FieldElement.
java.lang.Class<? extends FieldElement<Decimal64>>	Decimal64Field.getRuntimeClass()	Returns the runtime class of the FieldElement.