function x = cs_ltsolve (L,b)                                               %#ok
%CS_LTSOLVE solve a sparse upper triangular system L'*x=b.
%   x = cs_ltsolve(L,b) computes x = L'\b, L must be lower triangular with a
%   zero-free diagonal.  b must be a full vector.
%
%   Example:
%       Prob = UFget ('HB/bcsstk01') ; L = cs_chol (Prob.A) ; n = size (L,1) ;
%       b = rand (n,1) ; x = cs_ltsolve (L,b) ; norm (L'*x-b)
%
%   See also CS_LSOLVE, CS_USOLVE, CS_UTSOLVE, MLDIVIDE.

%   Copyright 2006-2007, Timothy A. Davis.
%   http://www.cise.ufl.edu/research/sparse

error ('cs_ltsolve mexFunction not found') ;
