private static class RRQRDecomposition.Solver extends java.lang.Object implements DecompositionSolver
Modifier and Type | Field and Description |
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private RealMatrix |
p
A permutation matrix for the pivots used in the QR decomposition
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private DecompositionSolver |
upper
Upper level solver.
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Modifier | Constructor and Description |
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private |
RRQRDecomposition.Solver(DecompositionSolver upper,
RealMatrix p)
Build a solver from decomposed matrix.
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Modifier and Type | Method and Description |
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RealMatrix |
getInverse()
Get the inverse (or pseudo-inverse) of the decomposed matrix.
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boolean |
isNonSingular()
Check if the decomposed matrix is non-singular.
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RealMatrix |
solve(RealMatrix b)
Solve the linear equation A × X = B for matrices A.
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RealVector |
solve(RealVector b)
Solve the linear equation A × X = B for matrices A.
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private final DecompositionSolver upper
private RealMatrix p
private RRQRDecomposition.Solver(DecompositionSolver upper, RealMatrix p)
upper
- upper level solver.p
- permutation matrixpublic boolean isNonSingular()
isNonSingular
in interface DecompositionSolver
public RealVector solve(RealVector b)
The A matrix is implicit, it is provided by the underlying decomposition algorithm.
solve
in interface DecompositionSolver
b
- right-hand side of the equation A × X = Bpublic RealMatrix solve(RealMatrix b)
The A matrix is implicit, it is provided by the underlying decomposition algorithm.
solve
in interface DecompositionSolver
b
- right-hand side of the equation A × X = Bpublic RealMatrix getInverse()
getInverse
in interface DecompositionSolver
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