Class SymmetricSparseMatrix

Basic sparse-symmetric-matrix class. Stores upper-triangular portion. Uses Dictionary as sparsifying data structure, which is probably not a good option. But it is easy.

Inheritance
Object
SymmetricSparseMatrix
Implements
Inherited Members
Namespace: g3
Assembly: cs.temp.dll.dll
Syntax
public class SymmetricSparseMatrix : IMatrix

Constructors

SymmetricSparseMatrix(DenseMatrix)

Declaration
public SymmetricSparseMatrix(DenseMatrix m)
Parameters
Type Name Description
DenseMatrix m

SymmetricSparseMatrix(SymmetricSparseMatrix)

Declaration
public SymmetricSparseMatrix(SymmetricSparseMatrix m)
Parameters
Type Name Description
SymmetricSparseMatrix m

SymmetricSparseMatrix(Int32)

Declaration
public SymmetricSparseMatrix(int setN = 0)
Parameters
Type Name Description
Int32 setN

Properties

Columns

Declaration
public int Columns { get; }
Property Value
Type Description
Int32

Item[Int32, Int32]

Declaration
public double this[int r, int c] { get; set; }
Parameters
Type Name Description
Int32 r
Int32 c
Property Value
Type Description
Double

Rows

Declaration
public int Rows { get; }
Property Value
Type Description
Int32

Size

Declaration
public Index2i Size { get; }
Property Value
Type Description
Index2i

Methods

EpsilonEqual(SymmetricSparseMatrix, Double)

Declaration
public bool EpsilonEqual(SymmetricSparseMatrix B, double eps = 2.2204460492503131E-16)
Parameters
Type Name Description
SymmetricSparseMatrix B
Double eps
Returns
Type Description
Boolean

Multiply(SymmetricSparseMatrix)

Declaration
public SymmetricSparseMatrix Multiply(SymmetricSparseMatrix M2)
Parameters
Type Name Description
SymmetricSparseMatrix M2
Returns
Type Description
SymmetricSparseMatrix

Multiply(SymmetricSparseMatrix, ref SymmetricSparseMatrix, Boolean)

Declaration
public void Multiply(SymmetricSparseMatrix M2, ref SymmetricSparseMatrix R, bool bParallel = true)
Parameters
Type Name Description
SymmetricSparseMatrix M2
SymmetricSparseMatrix R
Boolean bParallel

Multiply(Double[], Double[])

Declaration
public void Multiply(double[] X, double[] Result)
Parameters
Type Name Description
Double[] X
Double[] Result

NonZeroIndices()

Declaration
public IEnumerable<Index2i> NonZeroIndices()
Returns
Type Description
IEnumerable<Index2i>

NonZeros()

Declaration
public IEnumerable<KeyValuePair<Index2i, double>> NonZeros()
Returns
Type Description
IEnumerable<KeyValuePair<Index2i, Double>>

Set(Int32, Int32, Double)

Declaration
public void Set(int r, int c, double value)
Parameters
Type Name Description
Int32 r
Int32 c
Double value

Square(Boolean)

Declaration
public SymmetricSparseMatrix Square(bool bParallel = true)
Parameters
Type Name Description
Boolean bParallel
Returns
Type Description
SymmetricSparseMatrix

SquarePackedParallel()

Returns this*this, as a packed sparse matrix. Computes in parallel.

Declaration
public PackedSparseMatrix SquarePackedParallel()
Returns
Type Description
PackedSparseMatrix

Implements