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Class JSci.maths.IntegerMatrix

java.lang.Object
   |
   +----JSci.maths.Matrix
           |
           +----JSci.maths.IntegerMatrix

public class IntegerMatrix

extends Matrix

ARRAY_2D

Storage format identifier.

matrix

Array containing the elements of the matrix.

storageFormat

IntegerMatrix()

Constructs a matrix.

IntegerMatrix(int, int)

Constructs an empty matrix.

IntegerMatrix(int[][])

Constructs a matrix by wrapping an array.

IntegerMatrix(IntegerVector[])

Constructs a matrix from an array of vectors (columns).

add(AbelianGroupMember)

Returns the addition of this matrix and another.

add(IntegerMatrix)

Returns the addition of this matrix and another.

columns()

Returns the number of columns.

equals(Object)

Compares two integer matrices for equality.

finalize()

Finalize.

frobeniusNorm()

Returns the Frobenius norm.

getElement(int, int)

Returns an element of the matrix.

hashCode()

Returns a hashcode for this matrix.

infNorm()

Returns the l(infinity)-norm.

multiply(IntegerMatrix)

Returns the multiplication of this matrix and another.

multiply(IntegerVector)

Returns the multiplication of a vector by this matrix.

multiply(RingMember)

Returns the multiplication of this matrix and another.

negate()

Returns the negative of this matrix.

rows()

Returns the number of rows.

scalarMultiply(int)

Returns the multiplication of this matrix by a scalar.

scalarMultiply(RingMember)

Returns the multiplication of this matrix by a scalar.

setElement(int, int, int)

Sets the value of an element of the matrix.

subtract(AbelianGroupMember)

Returns the subtraction of this matrix by another.

subtract(IntegerMatrix)

Returns the subtraction of this matrix by another.

toComplexMatrix()

Converts this matrix to a complex matrix.

toDoubleMatrix()

Converts this matrix to a double matrix.

toString()

Returns a string representing this matrix.

transpose()

Returns the transpose of this matrix.

 protected static final int ARRAY_2D

Storage format identifier.

 protected static final int storageFormat

 protected int matrix[][]

Array containing the elements of the matrix.

 protected IntegerMatrix()

Constructs a matrix.

 public IntegerMatrix(int row,
                      int col)

Constructs an empty matrix.

Parameters:

row - the number of rows

col - the number of columns

 public IntegerMatrix(int array[][])

Constructs a matrix by wrapping an array.

Parameters:

array - an assigned value

 public IntegerMatrix(IntegerVector array[])

Constructs a matrix from an array of vectors (columns).

Parameters:

array - an assigned value

 protected void finalize() throws Throwable

Finalize.

Throws: Throwable

Any that occur.

Overrides:

finalize in class Object

 public boolean equals(Object m)

Compares two integer matrices for equality.

Parameters:

m - an integer matrix

Overrides:

equals in class Object

 public String toString()

Returns a string representing this matrix.

Overrides:

toString in class Object

 public int hashCode()

Returns a hashcode for this matrix.

Overrides:

hashCode in class Object

 public DoubleMatrix toDoubleMatrix()

Converts this matrix to a double matrix.

Returns:

a double matrix

 public ComplexMatrix toComplexMatrix()

Converts this matrix to a complex matrix.

Returns:

a complex matrix

 public int getElement(int i,
                       int j)

Returns an element of the matrix.

Parameters:

i - row index of the element

j - column index of the element

Throws: MatrixDimensionException

If attempting to access an invalid element.

 public void setElement(int i,
                        int j,
                        int x)

Sets the value of an element of the matrix.

Parameters:

i - row index of the element

j - column index of the element

x - an integer

Throws: MatrixDimensionException

If attempting to access an invalid element.

 public int infNorm()

Returns the l(infinity)-norm.

 public double frobeniusNorm()

Returns the Frobenius norm.

 public int rows()

Returns the number of rows.

Overrides:

rows in class Matrix

 public int columns()

Returns the number of columns.

Overrides:

columns in class Matrix

 public AbelianGroupMember negate()

Returns the negative of this matrix.

Overrides:

negate in class Matrix

 public AbelianGroupMember add(AbelianGroupMember m)

Returns the addition of this matrix and another.

Overrides:

add in class Matrix

 public IntegerMatrix add(IntegerMatrix m)

Returns the addition of this matrix and another.

Parameters:

m - an integer matrix

Throws: MatrixDimensionException

If the matrices are different sizes.

 public AbelianGroupMember subtract(AbelianGroupMember m)

Returns the subtraction of this matrix by another.

Overrides:

subtract in class Matrix

 public IntegerMatrix subtract(IntegerMatrix m)

Returns the subtraction of this matrix by another.

Parameters:

m - an integer matrix

Throws: MatrixDimensionException

If the matrices are different sizes.

 public AlgebraMember scalarMultiply(RingMember x)

Returns the multiplication of this matrix by a scalar.

Overrides:

scalarMultiply in class Matrix

 public IntegerMatrix scalarMultiply(int x)

Returns the multiplication of this matrix by a scalar.

Parameters:

x - an integer

Returns:

an integer matrix

 public IntegerVector multiply(IntegerVector v)

Returns the multiplication of a vector by this matrix.

Parameters:

v - an integer vector

Throws: DimensionException

If the matrix and vector are incompatible.

 public RingMember multiply(RingMember m)

Returns the multiplication of this matrix and another.

Overrides:

multiply in class Matrix

 public IntegerMatrix multiply(IntegerMatrix m)

Returns the multiplication of this matrix and another.

Parameters:

m - an integer matrix

Returns:

an IntegerMatrix or a IntegerSquareMatrix as appropriate

Throws: MatrixDimensionException

If the matrices are incompatible.

 public Matrix transpose()

Returns the transpose of this matrix.

Returns:

an integer matrix

Overrides:

transpose in class Matrix

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