Define A Matrix And Its Notation: Order Of A Matrix, Equality Of Matrices. #matrix #orderofmatrix

define:
a. a matrix and its notation
b. order of a matrix
c. equality of two matrices
#matrix
#matrices
#matricesandeterminants
#orderofamatrixdefinition,
#orderofamatrix,
#identitymatrix,
#matrixnotation
#equalityofmatrices