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NMathFunctionsConditionNumber(DoubleTriDiagMatrix, Boolean) Method

Computes an estimate of the reciprocal of the condition number of a given matrix in the 1-norm.

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4
Syntax
public static double ConditionNumber(
	DoubleTriDiagMatrix A,
	bool isSymmetricPD
)

Parameters

A  DoubleTriDiagMatrix
A tridiagonal matrix.
isSymmetricPD  Boolean
true if A is symmetric and positive definite.

Return Value

Double
An estimate of the reciprocal of the condition number.
Remarks
The condition number of a matrix A is:
C#
kappa = ||A|| ||AInv||
where AInv is the inverse of the matrix A. This function returns an estimate of the reciprocal of the condition number, rho = 1/kappa.
See Also