larrr Interface

public interface larrr

Perform tests to decide whether the symmetric tridiagonal matrix T warrants expensive computations which guarantee high relative accuracy in the eigenvalues.


Subroutines

public pure subroutine dlarrr(n, d, e, info)

Arguments

Type IntentOptional Attributes Name
integer(kind=ilp), intent(in) :: n
real(kind=dp), intent(in) :: d(*)
real(kind=dp), intent(inout) :: e(*)
integer(kind=ilp), intent(out) :: info

public pure subroutine slarrr(n, d, e, info)

Arguments

Type IntentOptional Attributes Name
integer(kind=ilp), intent(in) :: n
real(kind=sp), intent(in) :: d(*)
real(kind=sp), intent(inout) :: e(*)
integer(kind=ilp), intent(out) :: info

Module Procedures

public interface stdlib_dlarrr()

Arguments

None

public interface stdlib_slarrr()

Arguments

None