Definition of the zero matrix, identity matrix, diagonal matrices, lower and upper triangular matrices and banded matrices.

Join me on Coursera: https://imp.i384100.net/mathematics-f...

Lecture notes at http://www.math.ust.hk/~machas/matrix...

Paperback at https://www.amazon.com/Matrix-Algebra...

Subscribe to my channel: http://www.youtube.com/user/jchasnov?...