public class DiagonalSum extends Object implements Matrix
Constructor and Description |
---|
DiagonalSum(Matrix A,
double d) |
DiagonalSum(Matrix A,
double[] d) |
DiagonalSum(Matrix A,
Vector d) |
Modifier and Type | Method and Description |
---|---|
Matrix |
add(Matrix that)
this + that
|
Matrix |
deepCopy()
The implementation returns an instance created from
this by the copy
constructor of the class, or just this if the instance itself is
immutable. |
double |
get(int i,
int j)
Get the matrix entry at [i,j].
|
Vector |
getColumn(int j)
Get the specified column in the matrix as a vector.
|
Vector |
getRow(int i)
Get the specified row in the matrix as a vector.
|
Matrix |
minus(Matrix that)
this - that
|
Matrix |
multiply(Matrix that)
this * that
|
Vector |
multiply(Vector v)
Right multiply this matrix, A, by a vector.
|
int |
nCols()
Gets the number of columns.
|
int |
nRows()
Gets the number of rows.
|
Matrix |
ONE()
Get an identity matrix that has the same dimension as this matrix.
|
Matrix |
opposite()
Get the opposite of this matrix.
|
Matrix |
scaled(double c)
Scale this matrix, A, by a constant.
|
void |
set(int i,
int j,
double value)
Set the matrix entry at [i,j] to a value.
|
Matrix |
t()
Get the transpose of this matrix.
|
Matrix |
ZERO()
Get a zero matrix that has the same dimension as this matrix.
|
public DiagonalSum(Matrix A, double[] d)
public DiagonalSum(Matrix A, double d)
public Vector multiply(Vector v)
Matrix
public Matrix scaled(double c)
Matrix
public Vector getRow(int i) throws MatrixAccessException
Matrix
getRow
in interface Matrix
i
- the row indexMatrixAccessException
- when i < 1, or when i > the number of rowspublic Vector getColumn(int j) throws MatrixAccessException
Matrix
getColumn
in interface Matrix
j
- the column indexMatrixAccessException
- when j < 1, or when j > the number of columnspublic Matrix deepCopy()
DeepCopyable
this
by the copy
constructor of the class, or just this
if the instance itself is
immutable.deepCopy
in interface Matrix
deepCopy
in interface DeepCopyable
public int nRows()
Table
public int nCols()
Table
public void set(int i, int j, double value) throws MatrixAccessException
MatrixAccess
set
in interface MatrixAccess
i
- the row indexj
- the column indexvalue
- the value to set A[i,j] toMatrixAccessException
- if i or j is out of rangepublic double get(int i, int j) throws MatrixAccessException
MatrixAccess
get
in interface MatrixAccess
i
- the row indexj
- the column indexMatrixAccessException
- if i or j is out of rangepublic Matrix t()
MatrixRing
t
in interface MatrixRing
public Matrix add(Matrix that)
MatrixRing
add
in interface MatrixRing
add
in interface AbelianGroup<Matrix>
that
- a matrixthis
and that
public Matrix minus(Matrix that)
MatrixRing
minus
in interface MatrixRing
minus
in interface AbelianGroup<Matrix>
that
- a matrixthis
and that
public Matrix multiply(Matrix that)
MatrixRing
multiply
in interface MatrixRing
multiply
in interface Monoid<Matrix>
that
- a matrixthis
and that
public Matrix opposite()
MatrixRing
opposite
in interface MatrixRing
opposite
in interface AbelianGroup<Matrix>
public Matrix ZERO()
MatrixRing
ZERO
in interface MatrixRing
ZERO
in interface AbelianGroup<Matrix>
public Matrix ONE()
MatrixRing
ONE
in interface MatrixRing
ONE
in interface Monoid<Matrix>
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