syrk Interface

public interface syrk

SYRK performs one of the symmetric rank k operations C := alphaAAT + betaC, or C := alphaATA + betaC, where alpha and beta are scalars, C is an n by n symmetric matrix and A is an n by k matrix in the first case and a k by n matrix in the second case.


Subroutines

public pure subroutine csyrk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
complex(kind=sp), intent(in) :: alpha
complex(kind=sp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=sp), intent(in) :: beta
complex(kind=sp), intent(inout) :: c(ldc,*)
integer(kind=ilp), intent(in) :: ldc

public pure subroutine dsyrk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
real(kind=dp), intent(in) :: alpha
real(kind=dp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
real(kind=dp), intent(in) :: beta
real(kind=dp), intent(inout) :: c(ldc,*)
integer(kind=ilp), intent(in) :: ldc

public pure subroutine ssyrk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
real(kind=sp), intent(in) :: alpha
real(kind=sp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
real(kind=sp), intent(in) :: beta
real(kind=sp), intent(inout) :: c(ldc,*)
integer(kind=ilp), intent(in) :: ldc

public pure subroutine zsyrk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
character(len=1), intent(in) :: trans
integer(kind=ilp), intent(in) :: n
integer(kind=ilp), intent(in) :: k
complex(kind=dp), intent(in) :: alpha
complex(kind=dp), intent(in) :: a(lda,*)
integer(kind=ilp), intent(in) :: lda
complex(kind=dp), intent(in) :: beta
complex(kind=dp), intent(inout) :: c(ldc,*)
integer(kind=ilp), intent(in) :: ldc

Module Procedures

public interface stdlib_csyrk()

Arguments

None

public interface stdlib_dsyrk()

Arguments

None

public interface stdlib_ssyrk()

Arguments

None

public interface stdlib_zsyrk()

Arguments

None