In this article, we will demonstrate how to use the graphing feature in the Windows calculator to try and make mathematics more fun. Microsoft has always strived to kick up a notch the Windows ...

ABSTRACT: Let M be a matroid defined on a finite set E and L⊂E. L is locked in M ifand are 2-connected, and . In this paper, we prove that the nontrivial facets of the bases polytope of M are ...