We present some generalizations of a homogeneous and self-dual linear
programming (LP) algorithm to solving the monotone linear complementar
ity problem (LCP). Again, while it achieves the best known interior-po
int iteration complexity, the algorithm does not need to use any ''big
-M'' number, and it detects LCP infeasibility by generating a certific
ate. To our knowledge, this is the first interior-point and infeasible
-starting algorithm for the LCP with these desired features.