lanst Interface

public interface lanst

LANST returns the value of the one norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a real symmetric tridiagonal matrix A.


Functions

public pure function dlanst(norm, n, d, e)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: norm
integer(kind=ilp), intent(in) :: n
real(kind=dp), intent(in) :: d(*)
real(kind=dp), intent(in) :: e(*)

Return Value real(kind=dp)

public pure function slanst(norm, n, d, e)

Arguments

Type IntentOptional Attributes Name
character(len=1), intent(in) :: norm
integer(kind=ilp), intent(in) :: n
real(kind=sp), intent(in) :: d(*)
real(kind=sp), intent(in) :: e(*)

Return Value real(kind=sp)

Module Procedures

public interface stdlib_dlanst()

Arguments

None

public interface stdlib_slanst()

Arguments

None