pptrf Interface

public interface pptrf

PPTRF computes the Cholesky factorization of a complex Hermitian positive definite matrix A stored in packed format. The factorization has the form A = UH * U, if UPLO = 'U', or A = L * LH, if UPLO = 'L', where U is an upper triangular matrix and L is lower triangular.


Subroutines

public pure subroutine cpptrf(uplo, n, ap, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
complex(kind=sp), intent(inout) :: ap(*)
integer(kind=ilp), intent(out) :: info

public pure subroutine dpptrf(uplo, n, ap, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
real(kind=dp), intent(inout) :: ap(*)
integer(kind=ilp), intent(out) :: info

public pure subroutine spptrf(uplo, n, ap, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
real(kind=sp), intent(inout) :: ap(*)
integer(kind=ilp), intent(out) :: info

public pure subroutine zpptrf(uplo, n, ap, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
complex(kind=dp), intent(inout) :: ap(*)
integer(kind=ilp), intent(out) :: info

Module Procedures

public interface stdlib_cpptrf()

Arguments

None

public interface stdlib_dpptrf()

Arguments

None

public interface stdlib_spptrf()

Arguments

None

public interface stdlib_zpptrf()

Arguments

None