Performs a symmetric rank two update of a symmetric matrix.
Namespace: Extreme.Mathematics.ImplementationAssembly: Extreme.Numerics.Net40 (in Extreme.Numerics.Net40.dll) Version: 6.0.16073.0 (6.0.16312.0)
void SymmetricRankUpdate(
MatrixTriangle storageTriangle,
int n,
T alpha,
TVector x,
TVector y,
TMatrix a
)
Sub SymmetricRankUpdate (
storageTriangle As MatrixTriangle,
n As Integer,
alpha As T,
x As TVector,
y As TVector,
a As TMatrix
)
void SymmetricRankUpdate(
MatrixTriangle storageTriangle,
int n,
T alpha,
TVector x,
TVector y,
TMatrix a
)
abstract SymmetricRankUpdate :
storageTriangle : MatrixTriangle *
n : int *
alpha : 'T *
x : 'TVector *
y : 'TVector *
a : 'TMatrix -> unit
Parameters
- storageTriangle
- Type: Extreme.MathematicsMatrixTriangle
Specifies whether the matrix is an
upper or lower triangular matrix. - n
- Type: SystemInt32
The number of rows and columns in the matrix a. - alpha
- Type: T
The scalar used to multiply the
outer product. - x
- Type: TVector
A reference to a one-dimensional array
containing the elements of the vector x. - y
- Type: TVector
A reference to a one-dimensional array
containing the elements of the vector y.
- a
- Type: TMatrix
Reference to the first element in a
one-dimensional array that contains the elements of the
matrix.
This method is similar to the BLAS routine DSYR2.
Numerical Libraries
Supported in: 5.x
Reference