ManagedLinearAlgebraOperations.HermitianRankUpdate Method

Definition

Namespace: Numerics.NET.LinearAlgebra.Implementation
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.3

Overload List

HermitianRankUpdate(MatrixTriangle, Int32, T, ArraySlice<Complex<T>>, Array2D<Complex<T>>)
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, T, Array2D<Complex<T>>, T, Array2D<Complex<T>>)
HermitianRankUpdate(MatrixTriangle, Int32, T, ArraySlice<Complex<T>>, Array2D<Complex<T>>)	Performs the hermitian rank 1 operation A := alphaxx**H + A, where alpha is a real scalar, x is an n element vector and A is an n by n hermitian matrix.
HermitianRankUpdate(MatrixTriangle, Int32, T, ReadOnlySpanSlice<Complex<T>>, Span2D<Complex<T>>)	Performs the hermitian rank 1 operation A := alphaxx**H + A, where alpha is a real scalar, x is an n element vector and A is an n by n hermitian matrix.
HermitianRankUpdate(MatrixTriangle, Int32, T, ArraySlice<T>, ArraySlice<T>, Array2D<T>)	Performs a hermitian rank two update of a hermitian matrix.
HermitianRankUpdate(MatrixTriangle, Int32, Complex<T>, ArraySlice<Complex<T>>, ArraySlice<Complex<T>>, Array2D<Complex<T>>)	Performs the hermitian rank 2 operation A := alphaxy*H + conjg( alpha )yx*H + A, where alpha is a scalar, x and y are n element vectors and A is an n by n hermitian matrix.
HermitianRankUpdate(MatrixTriangle, Int32, Complex<T>, ReadOnlySpanSlice<Complex<T>>, ReadOnlySpanSlice<Complex<T>>, Span2D<Complex<T>>)	Performs the hermitian rank 2 operation A := alphaxy*H + conjg( alpha )yx*H + A, where alpha is a scalar, x and y are n element vectors and A is an n by n hermitian matrix.
HermitianRankUpdate(MatrixTriangle, Int32, T, ReadOnlySpan<Complex<T>>, Int32, Span<Complex<T>>, Int32)	Performs the hermitian rank 1 operation A := alphaxx**H + A, where alpha is a real scalar, x, incx is an n element vector and A is an n by n hermitian matrix.
HermitianRankUpdate(MatrixTriangle, Int32, Double, ReadOnlySpan<Complex<Double>>, Int32, Span<Complex<Double>>, Int32)	Performs the hermitian rank 1 operation A := alphaxx**H + A, where alpha is a real scalar, x, incx is an n element vector and A is an n by n hermitian matrix.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, T, Array2D<Complex<T>>, T, Array2D<Complex<T>>)	Performs one of the hermitian rank k operations C := alphaAA^H + betaC, or C := alphaA^HA + betaC, where alpha and beta are real scalars, C is an n by n hermitian matrix and A is an n by k matrix in the first case and a k by n matrix in the second case.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, T, ReadOnlySpan2D<Complex<T>>, T, Span2D<Complex<T>>)	Performs one of the hermitian rank k operations C := alphaAA^H + betaC, or C := alphaA^HA + betaC, where alpha and beta are real scalars, C is an n by n hermitian matrix and A is an n by k matrix in the first case and a k by n matrix in the second case.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, T, Array2D<T>, Array2D<T>, T, Array2D<T>)	Performs a rank 2k update of a hermitian matrix.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, Complex<T>, Array2D<Complex<T>>, Array2D<Complex<T>>, T, Array2D<Complex<T>>)	Performs one of the hermitian rank 2k operations C := alphaAB^H + conjg( alpha )BA^H + betaC, or C := alphaA^HB + conjg( alpha )B^HA + betaC, where alpha and beta are scalars with beta real, C is an n by n hermitian matrix and A and B are n by k matrices in the first case and k by n matrices in the second case.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, Complex<T>, ReadOnlySpan2D<Complex<T>>, ReadOnlySpan2D<Complex<T>>, T, Span2D<Complex<T>>)	Performs one of the hermitian rank 2k operations C := alphaAB^H + conjg( alpha )BA^H + betaC, or C := alphaA^HB + conjg( alpha )B^HA + betaC, where alpha and beta are scalars with beta real, C is an n by n hermitian matrix and A and B are n by k matrices in the first case and k by n matrices in the second case.
HermitianRankUpdate(MatrixTriangle, Int32, T, ReadOnlySpan<T>, Int32, ReadOnlySpan<T>, Int32, Span<T>, Int32)	Performs a hermitian rank two update of a hermitian matrix.
HermitianRankUpdate(MatrixTriangle, Int32, Complex<Double>, ReadOnlySpan<Complex<Double>>, Int32, ReadOnlySpan<Complex<Double>>, Int32, Span<Complex<Double>>, Int32)	Performs the hermitian rank 2 operation A := alphaxy*H + conjg( alpha )yx*H + A, where alpha is a scalar, x, incx and y are n element vectors and A is an n by n hermitian matrix.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, T, ReadOnlySpan<Complex<T>>, Int32, T, Span<Complex<T>>, Int32)	Performs one of the hermitian rank k operations C := alphaAA^H + betaC, or C := alphaA^HA + betaC, where alpha and beta are real scalars, C is an n by n hermitian matrix and A is an n by k matrix in the first case and a k by n matrix in the second case.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, Double, ReadOnlySpan<Complex<Double>>, Int32, Double, Span<Complex<Double>>, Int32)	Performs one of the hermitian rank k operations C := alphaAA^H + betaC, or C := alphaA^HA + betaC, where alpha and beta are real scalars, C is an n by n hermitian matrix and A is an n by k matrix in the first case and a k by n matrix in the second case.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, T, ReadOnlySpan<T>, Int32, ReadOnlySpan<T>, Int32, T, Span<T>, Int32)	Performs a rank 2k update of a hermitian matrix.
HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, Complex<Double>, ReadOnlySpan<Complex<Double>>, Int32, ReadOnlySpan<Complex<Double>>, Int32, Double, Span<Complex<Double>>, Int32)	Performs one of the hermitian rank 2k operations C := alphaAB^H + conjg( alpha )BA^H + betaC, or C := alphaA^HB + conjg( alpha )B^HA + betaC, where alpha and beta are scalars with beta real, C is an n by n hermitian matrix and A and B are n by k matrices in the first case and k by n matrices in the second case.

HermitianRankUpdate(MatrixTriangle, Int32, Double, ReadOnlySpan<Complex<Double>>, Int32, Span<Complex<Double>>, Int32)

Performs the hermitian rank 1 operation A := alpha*x*x**H + A, where alpha is a real scalar, x, incx is an n element vector and A is an n by n hermitian matrix.

public override void HermitianRankUpdate(
	MatrixTriangle storedTriangle,
	int n,
	double alpha,
	ReadOnlySpan<Complex<double>> x,
	int incx,
	Span<Complex<double>> a,
	int lda
)

Visual Basic

Public Overrides Sub HermitianRankUpdate ( 
	storedTriangle As MatrixTriangle,
	n As Integer,
	alpha As Double,
	x As ReadOnlySpan(Of Complex(Of Double)),
	incx As Integer,
	a As Span(Of Complex(Of Double)),
	lda As Integer
)

C++/CLI

public:
virtual void HermitianRankUpdate(
	MatrixTriangle storedTriangle, 
	int n, 
	double alpha, 
	ReadOnlySpan<Complex<double>> x, 
	int incx, 
	Span<Complex<double>> a, 
	int lda
) override

abstract HermitianRankUpdate : 
        storedTriangle : MatrixTriangle * 
        n : int * 
        alpha : float * 
        x : ReadOnlySpan<Complex<float>> * 
        incx : int * 
        a : Span<Complex<float>> * 
        lda : int -> unit 
override HermitianRankUpdate : 
        storedTriangle : MatrixTriangle * 
        n : int * 
        alpha : float * 
        x : ReadOnlySpan<Complex<float>> * 
        incx : int * 
        a : Span<Complex<float>> * 
        lda : int -> unit

Parameters

storedTriangle MatrixTriangle

n Int32

             On entry, N specifies the order of the matrix A.
             N must be at least zero.

alpha Double

            ALPHA is DOUBLE PRECISION.
             On entry, ALPHA specifies the scalar alpha.

x ReadOnlySpan<Complex<Double>>

            X is complex array of dimension at least
             ( 1 + ( n - 1 )*abs( INCX ) ).
             Before entry, the incremented array X must contain the n
             element vector x.

incx Int32

             On entry, INCX specifies the increment for the elements of
             X. INCX must not be zero.

a Span<Complex<Double>>

            A is complex array of DIMENSION ( LDA, n ).
             Before entry with  UPLO = 'U' or 'u', the leading n by n
             upper triangular part of the array A must contain the upper
             triangular part of the hermitian matrix and the strictly
             lower triangular part of A is not referenced. On exit, the
             upper triangular part of the array A is overwritten by the
             upper triangular part of the updated matrix.
             Before entry with UPLO = 'L' or 'l', the leading n by n
             lower triangular part of the array A must contain the lower
             triangular part of the hermitian matrix and the strictly
             upper triangular part of A is not referenced. On exit, the
             lower triangular part of the array A is overwritten by the
             lower triangular part of the updated matrix.
             Note that the imaginary parts of the diagonal elements need
             not be set, they are assumed to be zero, and on exit they
             are set to zero.

lda Int32

             On entry, LDA specifies the first dimension of A as declared
             in the calling (sub) program. LDA must be at least
             max( 1, n ).

Remarks

Further Details:

            Level 2 LinearAlgebra routine.
            -- Written on 22-October-1986.
               Jack Dongarra, Argonne National Lab.
               Jeremy Du Croz, Nag Central Office.
               Sven Hammarling, Nag Central Office.
               Richard Hanson, Sandia National Labs.

Authors: Univ. of Tennessee, Univ. of California Berkeley, Univ. of Colorado Denver, NAG Ltd.

Date: November 2011

HermitianRankUpdate(MatrixTriangle, Int32, Complex<Double>, ReadOnlySpan<Complex<Double>>, Int32, ReadOnlySpan<Complex<Double>>, Int32, Span<Complex<Double>>, Int32)

Performs the hermitian rank 2 operation A := alpha*x*y**H + conjg( alpha )*y*x**H + A, where alpha is a scalar, x, incx and y are n element vectors and A is an n by n hermitian matrix.

public override void HermitianRankUpdate(
	MatrixTriangle storedTriangle,
	int n,
	Complex<double> alpha,
	ReadOnlySpan<Complex<double>> x,
	int incx,
	ReadOnlySpan<Complex<double>> y,
	int incy,
	Span<Complex<double>> a,
	int lda
)

Visual Basic

Public Overrides Sub HermitianRankUpdate ( 
	storedTriangle As MatrixTriangle,
	n As Integer,
	alpha As Complex(Of Double),
	x As ReadOnlySpan(Of Complex(Of Double)),
	incx As Integer,
	y As ReadOnlySpan(Of Complex(Of Double)),
	incy As Integer,
	a As Span(Of Complex(Of Double)),
	lda As Integer
)

C++/CLI

public:
virtual void HermitianRankUpdate(
	MatrixTriangle storedTriangle, 
	int n, 
	Complex<double> alpha, 
	ReadOnlySpan<Complex<double>> x, 
	int incx, 
	ReadOnlySpan<Complex<double>> y, 
	int incy, 
	Span<Complex<double>> a, 
	int lda
) override

abstract HermitianRankUpdate : 
        storedTriangle : MatrixTriangle * 
        n : int * 
        alpha : Complex<float> * 
        x : ReadOnlySpan<Complex<float>> * 
        incx : int * 
        y : ReadOnlySpan<Complex<float>> * 
        incy : int * 
        a : Span<Complex<float>> * 
        lda : int -> unit 
override HermitianRankUpdate : 
        storedTriangle : MatrixTriangle * 
        n : int * 
        alpha : Complex<float> * 
        x : ReadOnlySpan<Complex<float>> * 
        incx : int * 
        y : ReadOnlySpan<Complex<float>> * 
        incy : int * 
        a : Span<Complex<float>> * 
        lda : int -> unit

Parameters

storedTriangle MatrixTriangle

Specifies whether the matrix is an upper or lower triangular matrix.

n Int32

             On entry, N specifies the order of the matrix A.
             N must be at least zero.

alpha Complex<Double>

             On entry, ALPHA specifies the scalar alpha.

x ReadOnlySpan<Complex<Double>>

            X is complex array of dimension at least
             ( 1 + ( n - 1 )*abs( INCX ) ).
             Before entry, the incremented array X must contain the n
             element vector x.

incx Int32

             On entry, INCX specifies the increment for the elements of
             X. INCX must not be zero.

y ReadOnlySpan<Complex<Double>>

            Y is complex array of dimension at least
             ( 1 + ( n - 1 )*abs( INCY ) ).
             Before entry, the incremented array Y must contain the n
             element vector y.

incy Int32

             On entry, INCY specifies the increment for the elements of
             Y. INCY must not be zero.

a Span<Complex<Double>>

            A is complex array of DIMENSION ( LDA, n ).
             Before entry with  UPLO = 'U' or 'u', the leading n by n
             upper triangular part of the array A must contain the upper
             triangular part of the hermitian matrix and the strictly
             lower triangular part of A is not referenced. On exit, the
             upper triangular part of the array A is overwritten by the
             upper triangular part of the updated matrix.
             Before entry with UPLO = 'L' or 'l', the leading n by n
             lower triangular part of the array A must contain the lower
             triangular part of the hermitian matrix and the strictly
             upper triangular part of A is not referenced. On exit, the
             lower triangular part of the array A is overwritten by the
             lower triangular part of the updated matrix.
             Note that the imaginary parts of the diagonal elements need
             not be set, they are assumed to be zero, and on exit they
             are set to zero.

lda Int32

             On entry, LDA specifies the first dimension of A as declared
             in the calling (sub) program. LDA must be at least
             max( 1, n ).

Implements

ILinearAlgebraOperations<T>.HermitianRankUpdate(MatrixTriangle, Int32, T, ReadOnlySpan<T>, Int32, ReadOnlySpan<T>, Int32, Span<T>, Int32)

Remarks

Further Details:

            Level 2 LinearAlgebra routine.
            -- Written on 22-October-1986.
               Jack Dongarra, Argonne National Lab.
               Jeremy Du Croz, Nag Central Office.
               Sven Hammarling, Nag Central Office.
               Richard Hanson, Sandia National Labs.

Authors: Univ. of Tennessee, Univ. of California Berkeley, Univ. of Colorado Denver, NAG Ltd.

Date: November 2011

HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, Double, ReadOnlySpan<Complex<Double>>, Int32, Double, Span<Complex<Double>>, Int32)

Performs one of the hermitian rank k operations C := alpha*A*A^H + beta*C, or C := alpha*A^H*A + beta*C, where alpha and beta are real scalars, C is an n by n hermitian matrix and A is an n by k matrix in the first case and a k by n matrix in the second case.

public override void HermitianRankUpdate(
	MatrixTriangle triangle,
	TransposeOperation trans,
	int n,
	int k,
	double alpha,
	ReadOnlySpan<Complex<double>> a,
	int lda,
	double beta,
	Span<Complex<double>> c,
	int ldc
)

Visual Basic

Public Overrides Sub HermitianRankUpdate ( 
	triangle As MatrixTriangle,
	trans As TransposeOperation,
	n As Integer,
	k As Integer,
	alpha As Double,
	a As ReadOnlySpan(Of Complex(Of Double)),
	lda As Integer,
	beta As Double,
	c As Span(Of Complex(Of Double)),
	ldc As Integer
)

C++/CLI

public:
virtual void HermitianRankUpdate(
	MatrixTriangle triangle, 
	TransposeOperation trans, 
	int n, 
	int k, 
	double alpha, 
	ReadOnlySpan<Complex<double>> a, 
	int lda, 
	double beta, 
	Span<Complex<double>> c, 
	int ldc
) override

abstract HermitianRankUpdate : 
        triangle : MatrixTriangle * 
        trans : TransposeOperation * 
        n : int * 
        k : int * 
        alpha : float * 
        a : ReadOnlySpan<Complex<float>> * 
        lda : int * 
        beta : float * 
        c : Span<Complex<float>> * 
        ldc : int -> unit 
override HermitianRankUpdate : 
        triangle : MatrixTriangle * 
        trans : TransposeOperation * 
        n : int * 
        k : int * 
        alpha : float * 
        a : ReadOnlySpan<Complex<float>> * 
        lda : int * 
        beta : float * 
        c : Span<Complex<float>> * 
        ldc : int -> unit

Parameters

triangle MatrixTriangle

trans TransposeOperation

             On entry,  TRANS  specifies the operation to be performed as
             follows:
                TRANS = 'N' or 'n'   C := alpha*A*A^H + beta*C.
                TRANS = 'C' or 'c'   C := alpha*A^H*A + beta*C.

n Int32

             On entry,  N specifies the order of the matrix C.  N must be
             at least zero.

k Int32

             On entry with  TRANS = 'N' or 'n',  K  specifies  the number
             of  columns   of  the   matrix   A,   and  on   entry   with
             TRANS = 'C' or 'c',  K  specifies  the number of rows of the
             matrix A.  K must be at least zero.

alpha Double

            ALPHA is DOUBLE PRECISION .
             On entry, ALPHA specifies the scalar alpha.

a ReadOnlySpan<Complex<Double>>

            A is complex array of DIMENSION ( LDA, ka ), where ka is
             k  when  TRANS = 'N' or 'n',  and is  n  otherwise.
             Before entry with  TRANS = 'N' or 'n',  the  leading  n by k
             part of the array  A  must contain the matrix  A,  otherwise
             the leading  k by n  part of the array  A  must contain  the
             matrix A.

lda Int32

             On entry, LDA specifies the first dimension of A as declared
             in  the  calling  (sub)  program.   When  TRANS = 'N' or 'n'
             then  LDA must be at least  max( 1, n ), otherwise  LDA must
             be at least  max( 1, k ).

beta Double

            BETA is DOUBLE PRECISION.
             On entry, BETA specifies the scalar beta.

c Span<Complex<Double>>

            C is complex array of DIMENSION ( LDC, n ).
             Before entry  with  UPLO = 'U' or 'u',  the leading  n by n
             upper triangular part of the array C must contain the upper
             triangular part  of the  hermitian matrix  and the strictly
             lower triangular part of C is not referenced.  On exit, the
             upper triangular part of the array  C is overwritten by the
             upper triangular part of the updated matrix.
             Before entry  with  UPLO = 'L' or 'l',  the leading  n by n
             lower triangular part of the array C must contain the lower
             triangular part  of the  hermitian matrix  and the strictly
             upper triangular part of C is not referenced.  On exit, the
             lower triangular part of the array  C is overwritten by the
             lower triangular part of the updated matrix.
             Note that the imaginary parts of the diagonal elements need
             not be set,  they are assumed to be zero,  and on exit they
             are set to zero.

ldc Int32

             On entry, LDC specifies the first dimension of C as declared
             in  the  calling  (sub)  program.   LDC  must  be  at  least
             max( 1, n ).

Remarks

Further Details:

            Level 3 LinearAlgebra routine.
            -- Written on 8-February-1989.
               Jack Dongarra, Argonne National Laboratory.
               Iain Duff, AERE Harwell.
               Jeremy Du Croz, Numerical Algorithms Group Ltd.
               Sven Hammarling, Numerical Algorithms Group Ltd.
            -- Modified 8-Nov-93 to set C(J,J) to DBLE( C(J,J) ) when BETA = 1.
               Ed Anderson, Cray Research Inc.

Authors: Univ. of Tennessee, Univ. of California Berkeley, Univ. of Colorado Denver, NAG Ltd.

Date: November 2011

HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, Complex<Double>, ReadOnlySpan<Complex<Double>>, Int32, ReadOnlySpan<Complex<Double>>, Int32, Double, Span<Complex<Double>>, Int32)

Performs one of the hermitian rank 2k operations C := alpha*A*B^H + conjg( alpha )*B*A^H + beta*C, or C := alpha*A^H*B + conjg( alpha )*B^H*A + beta*C, where alpha and beta are scalars with beta real, C is an n by n hermitian matrix and A and B are n by k matrices in the first case and k by n matrices in the second case.

public override void HermitianRankUpdate(
	MatrixTriangle triangle,
	TransposeOperation trans,
	int n,
	int k,
	Complex<double> alpha,
	ReadOnlySpan<Complex<double>> a,
	int lda,
	ReadOnlySpan<Complex<double>> b,
	int ldb,
	double beta,
	Span<Complex<double>> c,
	int ldc
)

Visual Basic

Public Overrides Sub HermitianRankUpdate ( 
	triangle As MatrixTriangle,
	trans As TransposeOperation,
	n As Integer,
	k As Integer,
	alpha As Complex(Of Double),
	a As ReadOnlySpan(Of Complex(Of Double)),
	lda As Integer,
	b As ReadOnlySpan(Of Complex(Of Double)),
	ldb As Integer,
	beta As Double,
	c As Span(Of Complex(Of Double)),
	ldc As Integer
)

C++/CLI

public:
virtual void HermitianRankUpdate(
	MatrixTriangle triangle, 
	TransposeOperation trans, 
	int n, 
	int k, 
	Complex<double> alpha, 
	ReadOnlySpan<Complex<double>> a, 
	int lda, 
	ReadOnlySpan<Complex<double>> b, 
	int ldb, 
	double beta, 
	Span<Complex<double>> c, 
	int ldc
) override

abstract HermitianRankUpdate : 
        triangle : MatrixTriangle * 
        trans : TransposeOperation * 
        n : int * 
        k : int * 
        alpha : Complex<float> * 
        a : ReadOnlySpan<Complex<float>> * 
        lda : int * 
        b : ReadOnlySpan<Complex<float>> * 
        ldb : int * 
        beta : float * 
        c : Span<Complex<float>> * 
        ldc : int -> unit 
override HermitianRankUpdate : 
        triangle : MatrixTriangle * 
        trans : TransposeOperation * 
        n : int * 
        k : int * 
        alpha : Complex<float> * 
        a : ReadOnlySpan<Complex<float>> * 
        lda : int * 
        b : ReadOnlySpan<Complex<float>> * 
        ldb : int * 
        beta : float * 
        c : Span<Complex<float>> * 
        ldc : int -> unit

Parameters

triangle MatrixTriangle

trans TransposeOperation

             On entry,  TRANS  specifies the operation to be performed as
             follows:
                TRANS = 'N' or 'n'    C := alpha*A*B^H          +
                                           conjg( alpha )*B*A^H +
                                           beta*C.
                TRANS = 'C' or 'c'    C := alpha*A^H*B          +
                                           conjg( alpha )*B^H*A +
                                           beta*C.

n Int32

             On entry,  N specifies the order of the matrix C.  N must be
             at least zero.

k Int32

             On entry with  TRANS = 'N' or 'n',  K  specifies  the number
             of  columns  of the  matrices  A and B,  and on  entry  with
             TRANS = 'C' or 'c',  K  specifies  the number of rows of the
             matrices  A and B.  K must be at least zero.

alpha Complex<Double>

            ALPHA is complex .
             On entry, ALPHA specifies the scalar alpha.

a ReadOnlySpan<Complex<Double>>

            A is complex array of DIMENSION ( LDA, ka ), where ka is
             k  when  TRANS = 'N' or 'n',  and is  n  otherwise.
             Before entry with  TRANS = 'N' or 'n',  the  leading  n by k
             part of the array  A  must contain the matrix  A,  otherwise
             the leading  k by n  part of the array  A  must contain  the
             matrix A.

lda Int32

             On entry, LDA specifies the first dimension of A as declared
             in  the  calling  (sub)  program.   When  TRANS = 'N' or 'n'
             then  LDA must be at least  max( 1, n ), otherwise  LDA must
             be at least  max( 1, k ).

b ReadOnlySpan<Complex<Double>>

            B is complex array of DIMENSION ( LDB, kb ), where kb is
             k  when  TRANS = 'N' or 'n',  and is  n  otherwise.
             Before entry with  TRANS = 'N' or 'n',  the  leading  n by k
             part of the array  B  must contain the matrix  B,  otherwise
             the leading  k by n  part of the array  B  must contain  the
             matrix B.

ldb Int32

             On entry, LDB specifies the first dimension of B as declared
             in  the  calling  (sub)  program.   When  TRANS = 'N' or 'n'
             then  LDB must be at least  max( 1, n ), otherwise  LDB must
             be at least  max( 1, k ).
             Unchanged on exit.

beta Double

            BETA is DOUBLE PRECISION .
             On entry, BETA specifies the scalar beta.

c Span<Complex<Double>>

            C is complex array of DIMENSION ( LDC, n ).
             Before entry  with  UPLO = 'U' or 'u',  the leading  n by n
             upper triangular part of the array C must contain the upper
             triangular part  of the  hermitian matrix  and the strictly
             lower triangular part of C is not referenced.  On exit, the
             upper triangular part of the array  C is overwritten by the
             upper triangular part of the updated matrix.
             Before entry  with  UPLO = 'L' or 'l',  the leading  n by n
             lower triangular part of the array C must contain the lower
             triangular part  of the  hermitian matrix  and the strictly
             upper triangular part of C is not referenced.  On exit, the
             lower triangular part of the array  C is overwritten by the
             lower triangular part of the updated matrix.
             Note that the imaginary parts of the diagonal elements need
             not be set,  they are assumed to be zero,  and on exit they
             are set to zero.

ldc Int32

             On entry, LDC specifies the first dimension of C as declared
             in  the  calling  (sub)  program.   LDC  must  be  at  least
             max( 1, n ).

Remarks

Further Details:

            Level 3 LinearAlgebra routine.
            -- Written on 8-February-1989.
               Jack Dongarra, Argonne National Laboratory.
               Iain Duff, AERE Harwell.
               Jeremy Du Croz, Numerical Algorithms Group Ltd.
               Sven Hammarling, Numerical Algorithms Group Ltd.
            -- Modified 8-Nov-93 to set C(J,J) to DBLE( C(J,J) ) when BETA = 1.
               Ed Anderson, Cray Research Inc.

Authors: Univ. of Tennessee, Univ. of California Berkeley, Univ. of Colorado Denver, NAG Ltd.

Date: November 2011

ManagedLinearAlgebraOperations.HermitianRankUpdate Method

Definition

Overload List

HermitianRankUpdate(MatrixTriangle, Int32, Double, ReadOnlySpan<Complex<Double>>, Int32, Span<Complex<Double>>, Int32)

Parameters

Remarks

Further Details:

HermitianRankUpdate(MatrixTriangle, Int32, Complex<Double>, ReadOnlySpan<Complex<Double>>, Int32, ReadOnlySpan<Complex<Double>>, Int32, Span<Complex<Double>>, Int32)

Parameters

Implements

Remarks

Further Details:

HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, Double, ReadOnlySpan<Complex<Double>>, Int32, Double, Span<Complex<Double>>, Int32)

Parameters

Remarks

Further Details:

HermitianRankUpdate(MatrixTriangle, TransposeOperation, Int32, Int32, Complex<Double>, ReadOnlySpan<Complex<Double>>, Int32, ReadOnlySpan<Complex<Double>>, Int32, Double, Span<Complex<Double>>, Int32)

Parameters

Remarks

Further Details:

See Also

Reference