Kivunge, B.Muondwe, S.K.Njoroge, James MwangiKinyanjui, Anthony muthondu2015-02-172015-02-172013Asian Journal of Current Engineering and Maths 2: 6 Nov – Dec (2013) 374 - 3902277-4920http://www.innovativejournal.in/index.php/ajcem/article/view/546/506http://ir-library.ku.ac.ke/handle/123456789/12251A real matrix is said to be –matrix if its principal minors are nonnegative and all its non-diagonal entries are non-positive. In this project, we consider the –matrix completion problem. It is shown that any digraph with less than four directed lines which is not a cycle has –completion. It is further shown that digraph of matrix with less than four directed lines which is a cycle does not have –completionenArticle