Title: Note on regions containing eigenvalues of a matrix,
Abstract: By excluding some regions, in which each eigenvalue of a matrix is not
contained, from the \alpha\beta-type eigenvalue inclusion region provided by
Huang et al.(Electronic Journal of Linear Algebra, 15 (2006) 215-224), a new
eigenvalue inclusion region is given. And it is proved that the new region is
contained in the \alpha\beta-type eigenvalue inclusion region.