LinearAlgebraOperations.BandSymmetricMultiplyAndAddInPlace<T, TStorage, TStorage2D> Method

Product of a symmetric band matrix and a vector.

Definition

Namespace: Numerics.NET.LinearAlgebra
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.3
C# 
public static void BandSymmetricMultiplyAndAddInPlace<T, TStorage, TStorage2D>(
	MatrixTriangle storedTriangle,
	int n,
	int k,
	T alpha,
	TStorage2D a,
	TStorage x,
	T beta,
	TStorage y
)
where TStorage : Object, IStorageSlice<T>
where TStorage2D : Object, IStorage2D<T>

Parameters

storedTriangle  MatrixTriangle
Specifies whether the matrix is an upper or lower triangular matrix.
n  Int32
The number of rows and columns in the matrix a.
k  Int32
The bandwidth of the matrix a.
alpha  T
The scalar used to multiply the matrix-vector product.
a  TStorage2D
A span that contains the elements of the matrix.
x  TStorage
A reference to a one-dimensional array containing the elements of the vector x.
beta  T
The scalar used to multiply y.
y  TStorage
A reference to a one-dimensional array containing the elements of the vector y. The elements of y are overwritten with the result.

Type Parameters

T
TStorage
TStorage2D

Remarks

This method is similar to the BLAS routine DSBMV.

See Also