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java.lang.Objectno.uib.cipr.matrix.SymmTridiagEVD
public class SymmTridiagEVD
Computes eigenvalues of symmetrical, tridiagonal matrices
Constructor Summary | |
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SymmTridiagEVD(int n)
Sets up an eigenvalue decomposition for symmetrical, tridiagonal matrices. |
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SymmTridiagEVD(int n,
boolean vectors)
Sets up an eigenvalue decomposition for symmetrical, tridiagonal matrices. |
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SymmTridiagEVD(int n,
boolean vectors,
double abstol)
Sets up an eigenvalue decomposition for symmetrical, tridiagonal matrices |
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SymmTridiagEVD(int n,
double abstol)
Sets up an eigenvalue decomposition for symmetrical, tridiagonal matrices. |
Method Summary | |
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SymmTridiagEVD |
factor(SymmTridiagMatrix A)
Computes the eigenvalue decomposition of the given matrix |
static SymmTridiagEVD |
factorize(Matrix A)
Convenience method for computing the full eigenvalue decomposition of the given matrix |
double[] |
getEigenvalues()
Gets the eigenvalues (stored in ascending order) |
DenseMatrix |
getEigenvectors()
Gets the eigenvectors, if available |
boolean |
hasEigenvectors()
True if the eigenvectors have been computed |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SymmTridiagEVD(int n)
n
- Size of the matrixpublic SymmTridiagEVD(int n, double abstol)
n
- Size of the matrixabstol
- Absolute tolerance criteriapublic SymmTridiagEVD(int n, boolean vectors)
n
- Size of the matrixvectors
- True to compute the eigenvectors, false for just the
eigenvaluespublic SymmTridiagEVD(int n, boolean vectors, double abstol)
n
- Size of the matrixvectors
- True to compute the eigenvectors, false for just the
eigenvaluesabstol
- Absolute tolerance criteriaMethod Detail |
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public static SymmTridiagEVD factorize(Matrix A) throws NotConvergedException
A
- Matrix to factorize. Main diagonal and superdiagonal is
copied, and the matrix is not modified
NotConvergedException
public SymmTridiagEVD factor(SymmTridiagMatrix A) throws NotConvergedException
A
- Matrix to factorize. Overwritten on return
NotConvergedException
public double[] getEigenvalues()
public DenseMatrix getEigenvectors()
public boolean hasEigenvectors()
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