hpr2 Interface

public interface hpr2

HPR2 performs the hermitian rank 2 operation A := alphaxyH + conjg( alpha )yxH + A, where alpha is a scalar, x and y are n element vectors and A is an n by n hermitian matrix, supplied in packed form.


Subroutines

public pure subroutine chpr2(uplo, n, alpha, x, incx, y, incy, ap)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
complex(kind=sp), intent(in) :: alpha
complex(kind=sp), intent(in) :: x(*)
integer(kind=ilp), intent(in) :: incx
complex(kind=sp), intent(in) :: y(*)
integer(kind=ilp), intent(in) :: incy
complex(kind=sp), intent(inout) :: ap(*)

public pure subroutine zhpr2(uplo, n, alpha, x, incx, y, incy, ap)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
complex(kind=dp), intent(in) :: alpha
complex(kind=dp), intent(in) :: x(*)
integer(kind=ilp), intent(in) :: incx
complex(kind=dp), intent(in) :: y(*)
integer(kind=ilp), intent(in) :: incy
complex(kind=dp), intent(inout) :: ap(*)

Module Procedures

public interface stdlib_chpr2()

Arguments

None

public interface stdlib_zhpr2()

Arguments

None