au_l_i

function au_l_i
%
%  Generates the data used in 'au_l'. Data are stored in global
%  variables.
%
%  NOTE that 'au_m_i' must be called before calling this routine.
% 
%  Calling sequence:
%
%    au_l_i
%
%  Remarks:
% 
%    This routine has access to the matrix A, which is provided as 
%    global data by the routine 'au_m_i'.
%
%
%   LYAPACK 1.0 (Thilo Penzl, May 1999)

global LP_A LP_L LP_U

if ~length(LP_A)
  error('This routine needs global data which must be generated by calling ''au_m_i'' first.');
end 

[LP_L,LP_U] = lu(LP_A);