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Description
Interface Summary | |
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DiagonalMatrix | |
SquareMatrix | |
TridiagonalMatrix |
Class Summary | |
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AbstractComplexMatrix | The AbstractComplexMatrix class provides an object for encapsulating matrices containing complex numbers. |
AbstractComplexSquareMatrix | The AbstractComplexSquareMatrix class provides an object for encapsulating square matrices containing complex numbers. |
AbstractDoubleMatrix | The AbstractDoubleMatrix class provides an object for encapsulating double matrices. |
AbstractDoubleSquareMatrix | The AbstractDoubleSquareMatrix class provides an object for encapsulating double square matrices. |
AbstractIntegerMatrix | The AbstractIntegerMatrix class provides an object for encapsulating integer matrices. |
AbstractIntegerSquareMatrix | The AbstractIntegerSquareMatrix class provides an object for encapsulating integer square matrices. |
ComplexDiagonalMatrix | The ComplexDiagonalMatrix class provides an object for encapsulating diagonal matrices containing complex numbers. |
ComplexMatrix | The ComplexMatrix class provides an object for encapsulating matrices containing complex numbers. |
ComplexSquareMatrix | The ComplexSquareMatrix class provides an object for encapsulating square matrices containing complex numbers. |
ComplexTridiagonalMatrix | The ComplexTridiagonalMatrix class provides an object for encapsulating tridiagonal matrices containing complex numbers. |
DoubleDiagonalMatrix | The DoubleDiagonalMatrix class provides an object for encapsulating double diagonal matrices. |
DoubleMatrix | The DoubleMatrix class provides an object for encapsulating double matrices. |
DoubleMatrixAlgebra | |
DoubleSparseMatrix | The DoubleSparseMatrix class provides an object for encapsulating sparse matrices. |
DoubleSparseSquareMatrix | The DoubleSparseSquareMatrix class provides an object for encapsulating sparse square matrices. |
DoubleSquareMatrix | The DoubleSquareMatrix class provides an object for encapsulating double square matrices. |
DoubleTridiagonalMatrix | The DoubleTridiagonalMatrix class provides an object for encapsulating double tridiagonal matrices. |
IntegerDiagonalMatrix | The IntegerDiagonalMatrix class provides an object for encapsulating integer diagonal matrices. |
IntegerMatrix | The IntegerMatrix class provides an object for encapsulating integer matrices. |
IntegerMatrixAlgebra | |
IntegerSquareMatrix | The IntegerSquareMatrix class provides an object for encapsulating integer square matrices. |
IntegerTridiagonalMatrix | The IntegerTridiagonalMatrix class provides an object for encapsulating integer tridiagonal matrices. |
Matrix | The Matrix superclass provides an abstract encapsulation for matrices. |
RingMatrix | The RingMatrix class provides an object for encapsulating matrices over an arbitrary ring. |
Exception Summary | |
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MatrixDimensionException | This exception occurs when there is a problem involving a matrix's dimensions. |
Matrix and Vector classes.
The matrix and vector classes support three different numeric types. These are integer (for speed), double (for accuracy) and complex.
The square matrix classes introduce the following methods:
luDecompose
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Decomposes a matrix M into a lower triangular matrix L and an upper triangular matrix U, such that M=LU.
choleskyDecompose
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Similar to LU decomposition but with the addition property that U=LT. The matrix must be symmetric and positive definite for this to work correctly.
singularValueDecompose
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Decomposes a matrix M into an orthogonal matrix U, a diagonal matrix S and an orthogonal matrix V, such that M=USVT.
inverse
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Computes the inverse of a matrix using LU decomposition (M-1=U-1L-1).
Where ever possible, the abstract matrix/vector API should be used in preference to a particular matrix/vector implementation API.
That is, use code like AbstractDoubleVector vec = new DoubleVector(dim);
.
This philosophy is similar to that of the Java Collections Framework.
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