Matrix<T>.Rank(T) Method

Returns the numerical rank of a matrix using the specified tolerance.

Definition

Namespace: Extreme.Mathematics
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
C#
public override int Rank(
	T tolerance
)

Parameters

tolerance  T
The absolute tolerance used to determine if a matrix element is considered zero.

Return Value

Int32
An integer indicating the numerical rank of the matrix.

Remarks

If tolerance is negative, the default tolerance is used. The default tolerance is equal to the product of the machine precision, the largest dimension of the matrix, and the one-norm of the matrix. The rank is determined by counting the number of diagonal elements of the upper-triangular element of the QR decomposition whose absolute value is greater than the tolerance.

See Also