Apps. and Interpretation for IBDP Maths Ebook 2 | Page 85

www . seprodstore . com 75 7 Chapter 7 Matrices � Terminologies of matrices : 11 12 1 21 22 2 1 2 n n m m mn a a a a a a a a a � � � � � � � _{� �} � � � � A : A m n � matrix with m rows and n columns ij a : Element on the i th row and the j th column 1 0 0 0 1 0 0 0 1 � � � � � � � _{� �} � � � � I : Identity matrix 0 0 0 0 0 0 0 0 0 � � � � � � � _{� �} � � � � 0 : Zero matrix SUMMARY POINTs