Package org.ejml.dense.row.decompose.chol

Class CholeskyDecompositionCommon_ZDRM

java.lang.Object
org.ejml.dense.row.decompose.chol.CholeskyDecompositionCommon_ZDRM
All Implemented Interfaces:
org.ejml.interfaces.decomposition.CholeskyDecomposition<org.ejml.data.ZMatrixRMaj>, org.ejml.interfaces.decomposition.CholeskyDecomposition_F64<org.ejml.data.ZMatrixRMaj>, org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.ZMatrixRMaj>
Direct Known Subclasses:
CholeskyDecompositionInner_ZDRM
public abstract class CholeskyDecompositionCommon_ZDRM extends Object implements org.ejml.interfaces.decomposition.CholeskyDecomposition_F64<org.ejml.data.ZMatrixRMaj>

This is an abstract class for a Cholesky decomposition. It provides the solvers, but the actual decomposition is provided in other classes.

See Also:
  • CholeskyDecomposition_F64

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected org.ejml.data.Complex_F64
    det
     
    protected boolean
    lower
     
    protected int
    n
     
    protected double[]
    t
     
    protected org.ejml.data.ZMatrixRMaj
    T
     

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    CholeskyDecompositionCommon_ZDRM(boolean lower)
    Specifies if a lower or upper variant should be constructed.

  • Method Summary

    Modifier and Type
    Method
    Description
    org.ejml.data.ZMatrixRMaj
    _getT()
    Returns the raw decomposed matrix.
    org.ejml.data.Complex_F64
    computeDeterminant()
     
    boolean
    decompose(org.ejml.data.ZMatrixRMaj mat)
    protected abstract boolean
    decomposeLower()
    Performs an lower triangular decomposition.
    protected abstract boolean
    decomposeUpper()
    Performs an upper triangular decomposition.
    org.ejml.data.ZMatrixRMaj
    getT(@Nullable org.ejml.data.ZMatrixRMaj T)
     
    boolean
    inputModified()
     
    boolean
    isLower()

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • n

      protected int n

    • T

      protected org.ejml.data.ZMatrixRMaj T

    • t

      protected double[] t

    • lower

      protected boolean lower

    • det

      protected org.ejml.data.Complex_F64 det

  • Constructor Details

    • CholeskyDecompositionCommon_ZDRM

      protected CholeskyDecompositionCommon_ZDRM(boolean lower)
      Specifies if a lower or upper variant should be constructed.
      Parameters:
      lower - should a lower or upper triangular matrix be used.

  • Method Details

    • isLower

      public boolean isLower()
      Specified by:
      isLower in interface org.ejml.interfaces.decomposition.CholeskyDecomposition<org.ejml.data.ZMatrixRMaj>

    • decompose

      public boolean decompose(org.ejml.data.ZMatrixRMaj mat)
      Specified by:
      decompose in interface org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.ZMatrixRMaj>

    • inputModified

      public boolean inputModified()
      Specified by:
      inputModified in interface org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.ZMatrixRMaj>

    • decomposeLower

      protected abstract boolean decomposeLower()
      Performs an lower triangular decomposition.
      Returns:
      true if the matrix was decomposed.

    • decomposeUpper

      protected abstract boolean decomposeUpper()
      Performs an upper triangular decomposition.
      Returns:
      true if the matrix was decomposed.

    • getT

      public org.ejml.data.ZMatrixRMaj getT(@Nullable @Nullable org.ejml.data.ZMatrixRMaj T)
      Specified by:
      getT in interface org.ejml.interfaces.decomposition.CholeskyDecomposition<org.ejml.data.ZMatrixRMaj>

    • _getT

      public org.ejml.data.ZMatrixRMaj _getT()
      Returns the raw decomposed matrix.
      Returns:
      A lower or upper triangular matrix.

    • computeDeterminant

      public org.ejml.data.Complex_F64 computeDeterminant()
      Specified by:
      computeDeterminant in interface org.ejml.interfaces.decomposition.CholeskyDecomposition_F64<org.ejml.data.ZMatrixRMaj>