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java.lang.Objectno.uib.cipr.matrix.SymmPackEVD
public class SymmPackEVD
Computes eigenvalues of symmetrical, packed matrices
Constructor Summary | |
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SymmPackEVD(int n,
boolean upper)
Sets up an eigenvalue decomposition for symmetrical, packed matrices. |
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SymmPackEVD(int n,
boolean upper,
boolean vectors)
Sets up an eigenvalue decomposition for symmetrical, packed matrices |
Method Summary | |
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SymmPackEVD |
factor(LowerSymmPackMatrix A)
Computes the eigenvalue decomposition of the given matrix |
SymmPackEVD |
factor(UpperSymmPackMatrix A)
Computes the eigenvalue decomposition of the given matrix |
static SymmPackEVD |
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 SymmPackEVD(int n, boolean upper)
n
- Size of the matrixupper
- True if the upper part of the matrix is stored, and false if
the lower part of the matrix is stored insteadpublic SymmPackEVD(int n, boolean upper, boolean vectors)
n
- Size of the matrixupper
- True if the upper part of the matrix is stored, and false if
the lower part of the matrix is stored insteadvectors
- True to compute the eigenvectors, false for just the
eigenvaluesMethod Detail |
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public static SymmPackEVD factorize(Matrix A) throws NotConvergedException
A
- Matrix to factorize. Upper part extracted, and the matrix is
not modified
NotConvergedException
public SymmPackEVD factor(LowerSymmPackMatrix A) throws NotConvergedException
A
- Matrix to factorize. Overwritten on return
NotConvergedException
public SymmPackEVD factor(UpperSymmPackMatrix A) throws NotConvergedException
A
- Matrix to factorize. Overwritten on return
NotConvergedException
public double[] getEigenvalues()
public DenseMatrix getEigenvectors()
public boolean hasEigenvectors()
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