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 | Intent | Optional | 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 | Intent | Optional | 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 pure subroutine stdlib_chpr2(uplo, n, alpha, x, incx, y, incy, ap)
CHPR2 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.
Arguments
| Type | Intent | Optional | 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 stdlib_zhpr2(uplo, n, alpha, x, incx, y, incy, ap)
ZHPR2 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.
Arguments
| Type | Intent | Optional | 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(*) |