pftrf Interface

public interface pftrf

PFTRF computes the Cholesky factorization of a complex Hermitian positive definite matrix A. 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. This is the block version of the algorithm, calling Level 3 BLAS.


Subroutines

public pure subroutine cpftrf(transr, uplo, n, a, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: transr
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
complex(kind=sp), intent(inout) :: a(0:*)
integer(kind=ilp), intent(out) :: info

public pure subroutine dpftrf(transr, uplo, n, a, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: transr
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
real(kind=dp), intent(inout) :: a(0:*)
integer(kind=ilp), intent(out) :: info

public pure subroutine spftrf(transr, uplo, n, a, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: transr
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
real(kind=sp), intent(inout) :: a(0:*)
integer(kind=ilp), intent(out) :: info

public pure subroutine zpftrf(transr, uplo, n, a, info)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: transr
character(len=1), intent(in) :: uplo
integer(kind=ilp), intent(in) :: n
complex(kind=dp), intent(inout) :: a(0:*)
integer(kind=ilp), intent(out) :: info

Module Procedures

public interface stdlib_cpftrf()

Arguments

None

public interface stdlib_dpftrf()

Arguments

None

public interface stdlib_spftrf()

Arguments

None

public interface stdlib_zpftrf()

Arguments

None