public final class DoubleSparseSquareMatrix extends DoubleSquareMatrix
Modifier and Type | Field and Description |
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protected static int |
SPARSE
Storage format identifier.
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LU, LUpivot
ARRAY_2D, matrix
CLASS_SPECIFIC, numCols, numRows, storageFormat
Constructor and Description |
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DoubleSparseSquareMatrix(double[][] array)
Constructs a matrix from an array.
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DoubleSparseSquareMatrix(int size)
Constructs an empty matrix.
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Modifier and Type | Method and Description |
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DoubleMatrix |
add(DoubleMatrix m)
Returns the addition of this matrix and another.
|
DoubleSparseSquareMatrix |
add(DoubleSparseSquareMatrix m)
Returns the addition of this matrix and another.
|
DoubleSquareMatrix |
add(DoubleSquareMatrix m)
Returns the addition of this matrix and another.
|
DoubleSquareMatrix[] |
choleskyDecompose()
Returns the Cholesky decomposition of this matrix.
|
double |
det()
Returns the determinant.
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boolean |
equals(java.lang.Object m)
Compares two double sparse square matrices for equality.
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protected void |
finalize()
Finalize.
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double |
frobeniusNorm()
Returns the Frobenius (l2) norm.
|
double |
getElement(int i,
int j)
Returns an element of the matrix.
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double |
infNorm()
Returns the l
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DoubleSquareMatrix[] |
luDecompose(int[] pivot)
Returns the LU decomposition of this matrix.
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DoubleMatrix |
mapElements(Mapping f)
Applies a function on all the matrix elements.
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DoubleMatrix |
multiply(DoubleMatrix m)
Returns the multiplication of this matrix and another.
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DoubleSparseSquareMatrix |
multiply(DoubleSparseSquareMatrix m)
Returns the multiplication of this matrix and another.
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DoubleSquareMatrix |
multiply(DoubleSquareMatrix m)
Returns the multiplication of this matrix and another.
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DoubleVector |
multiply(DoubleVector v)
Returns the multiplication of a vector by this matrix.
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DoubleMatrix |
scalarMultiply(double x)
Returns the multiplication of this matrix by a scalar.
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double |
scalarProduct(DoubleMatrix m)
Returns the scalar product of this matrix and another.
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double |
scalarProduct(DoubleSparseSquareMatrix m)
Returns the scalar product of this matrix and another.
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double |
scalarProduct(DoubleSquareMatrix m)
Returns the scalar product of this matrix and another.
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void |
setElement(int i,
int j,
double x)
Sets the value of an element of the matrix.
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DoubleMatrix |
subtract(DoubleMatrix m)
Returns the subtraction of this matrix and another.
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DoubleSparseSquareMatrix |
subtract(DoubleSparseSquareMatrix m)
Returns the addition of this matrix and another.
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DoubleSquareMatrix |
subtract(DoubleSquareMatrix m)
Returns the subtraction of this matrix by another.
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ComplexMatrix |
toComplexMatrix()
Converts this matrix to a complex matrix.
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IntegerMatrix |
toIntegerMatrix()
Converts this matrix to an integer matrix.
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java.lang.String |
toString()
Returns a string representing this matrix.
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double |
trace()
Returns the trace.
|
Matrix |
transpose()
Returns the transpose of this matrix.
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inverse, isSymmetric, isUnitary, operatorNorm, polarDecompose, singularValueDecompose
add, directSum, hashCode, multiply, negate, scalarDivide, scalarDivide, scalarMultiply, subtract, tensorProduct
columns, getInvalidElementMsg, rows
protected static final int SPARSE
public DoubleSparseSquareMatrix(int size)
size
- the number of rows/columnspublic DoubleSparseSquareMatrix(double[][] array)
array
- an assigned valueMatrixDimensionException
- If the array is not square.protected void finalize() throws java.lang.Throwable
finalize
in class DoubleMatrix
java.lang.Throwable
- Any that occur.public boolean equals(java.lang.Object m)
equals
in class DoubleMatrix
m
- a double matrixpublic java.lang.String toString()
toString
in class DoubleMatrix
public IntegerMatrix toIntegerMatrix()
toIntegerMatrix
in class DoubleMatrix
public ComplexMatrix toComplexMatrix()
toComplexMatrix
in class DoubleMatrix
public double getElement(int i, int j)
getElement
in class DoubleMatrix
i
- row index of the elementj
- column index of the elementMatrixDimensionException
- If attempting to access an invalid element.public void setElement(int i, int j, double x)
setElement
in class DoubleMatrix
i
- row index of the elementj
- column index of the elementx
- a numberMatrixDimensionException
- If attempting to access an invalid element.public double det()
det
in class DoubleSquareMatrix
public double trace()
trace
in class DoubleSquareMatrix
public double infNorm()
infNorm
in class DoubleMatrix
public double frobeniusNorm()
frobeniusNorm
in class DoubleMatrix
public DoubleMatrix add(DoubleMatrix m)
add
in class DoubleSquareMatrix
m
- a double matrixMatrixDimensionException
- If the matrices are different sizes.public DoubleSquareMatrix add(DoubleSquareMatrix m)
add
in class DoubleSquareMatrix
m
- a double square matrixMatrixDimensionException
- If the matrices are different sizes.public DoubleSparseSquareMatrix add(DoubleSparseSquareMatrix m)
m
- a double sparse matrixMatrixDimensionException
- If the matrices are different sizes.public DoubleMatrix subtract(DoubleMatrix m)
subtract
in class DoubleSquareMatrix
m
- a double matrixMatrixDimensionException
- If the matrices are different sizes.public DoubleSquareMatrix subtract(DoubleSquareMatrix m)
subtract
in class DoubleSquareMatrix
m
- a double square matrixMatrixDimensionException
- If the matrices are different sizes.public DoubleSparseSquareMatrix subtract(DoubleSparseSquareMatrix m)
m
- a double sparse matrixMatrixDimensionException
- If the matrices are different sizes.public DoubleMatrix scalarMultiply(double x)
scalarMultiply
in class DoubleSquareMatrix
x
- a doublepublic double scalarProduct(DoubleMatrix m)
scalarProduct
in class DoubleSquareMatrix
m
- a double matrix.MatrixDimensionException
- If the matrices are different sizes.public double scalarProduct(DoubleSquareMatrix m)
scalarProduct
in class DoubleSquareMatrix
m
- a double square matrix.MatrixDimensionException
- If the matrices are different sizes.public double scalarProduct(DoubleSparseSquareMatrix m)
m
- a double sparse matrix.MatrixDimensionException
- If the matrices are different sizes.public DoubleVector multiply(DoubleVector v)
multiply
in class DoubleSquareMatrix
v
- a double vectorDimensionException
- If the matrix and vector are incompatible.public DoubleMatrix multiply(DoubleMatrix m)
multiply
in class DoubleMatrix
m
- a double matrixMatrixDimensionException
- If the matrices are incompatible.public DoubleSquareMatrix multiply(DoubleSquareMatrix m)
multiply
in class DoubleSquareMatrix
m
- a double square matrixMatrixDimensionException
- If the matrices are incompatible.public DoubleSparseSquareMatrix multiply(DoubleSparseSquareMatrix m)
m
- a double sparse matrixMatrixDimensionException
- If the matrices are incompatible.public Matrix transpose()
transpose
in class DoubleSquareMatrix
public DoubleSquareMatrix[] luDecompose(int[] pivot)
luDecompose
in class DoubleSquareMatrix
pivot
- an empty array of length rows()+1
to hold the pivot information (null if not interested)public DoubleSquareMatrix[] choleskyDecompose()
choleskyDecompose
in class DoubleSquareMatrix
public DoubleMatrix mapElements(Mapping f)
mapElements
in class DoubleSquareMatrix
f
- a user-defined function