herk Interface
public interface herk
HERK performs one of the hermitian rank k operations C := alphaAAH + betaC, or C := alphaAHA + 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.
Subroutines
public pure subroutine cherk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc)
Arguments
| Type | Intent | Optional | 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 | |||
| complex(kind=sp), | intent(in) | :: | a(lda,*) | |||
| integer(kind=ilp), | intent(in) | :: | lda | |||
| real(kind=sp), | intent(in) | :: | beta | |||
| complex(kind=sp), | intent(inout) | :: | c(ldc,*) | |||
| integer(kind=ilp), | intent(in) | :: | ldc |
public pure subroutine zherk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc)
Arguments
| Type | Intent | Optional | 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 | |||
| complex(kind=dp), | intent(in) | :: | a(lda,*) | |||
| integer(kind=ilp), | intent(in) | :: | lda | |||
| real(kind=dp), | intent(in) | :: | beta | |||
| complex(kind=dp), | intent(inout) | :: | c(ldc,*) | |||
| integer(kind=ilp), | intent(in) | :: | ldc |
Module Procedures
public pure subroutine stdlib_cherk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc)
CHERK performs one of the hermitian rank k operations C := alphaAAH + betaC, or C := alphaAHA + 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.
Arguments
| Type | Intent | Optional | 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 | |||
| complex(kind=sp), | intent(in) | :: | a(lda,*) | |||
| integer(kind=ilp), | intent(in) | :: | lda | |||
| real(kind=sp), | intent(in) | :: | beta | |||
| complex(kind=sp), | intent(inout) | :: | c(ldc,*) | |||
| integer(kind=ilp), | intent(in) | :: | ldc |
public pure subroutine stdlib_zherk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc)
ZHERK performs one of the hermitian rank k operations C := alphaAAH + betaC, or C := alphaAHA + 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.
Arguments
| Type | Intent | Optional | 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 | |||
| complex(kind=dp), | intent(in) | :: | a(lda,*) | |||
| integer(kind=ilp), | intent(in) | :: | lda | |||
| real(kind=dp), | intent(in) | :: | beta | |||
| complex(kind=dp), | intent(inout) | :: | c(ldc,*) | |||
| integer(kind=ilp), | intent(in) | :: | ldc |