dlarfg Interface

interface
public pure subroutine dlarfg(n, alpha, x, incx, tau)

Arguments

Type IntentOptional Attributes Name
integer, intent(in) :: n
real(kind=dp), intent(inout) :: alpha
real(kind=dp), intent(inout) :: x(*)
integer, intent(in) :: incx
real(kind=dp), intent(out) :: tau

Description

Generate a Householder reflector H such that H*[alpha; x] = [beta; 0].