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#
An integer indicating the numerical rank of the matrix.
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
public override int Rank(
T tolerance
)
Parameters
- tolerance T
- The absolute tolerance used to determine if a matrix element is considered zero.
Return Value
Int32An 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.