A rectangular
arrangement of numbers in rows and columns , is called a matrix ,and enclosed
by small ( ) or big [ ] brackets .
Example -
,
Type of matrix
Row matrix –
A matrix which have
only one row , then it is called Row
matrix
Thus A= [
is a Row matrix if m=1
Example-
[ 1,3,5 ]
Column matrix –
A matrix which
have only one column, when it is
Called a Column
matrix
Thus, A=[
is a Column matrix if n=1
Example-
Square
matrix – A matrix in which the number of rows is
Equal to the number of columns is called a
Square matrix
Thus, [
where m=n=1
Example-
Diagonal matrix- A square matrix is
called a Diagonal matrix if all
the
elements, except those in the leading
Diagonal
,are Zero
Example-
Scalar matrix- A diagonal matrix in which all
the diagonal elements
are equal ,is
called Scalar matrix
Example-
Null Matrix- A matrix whose all elements are zero, is
called null
matrix or zero
matrix.
Example-
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