The
numbers or functions are called the elements or the entries of the matrix We denote matrices by capital letters The following are some examples of matrices:
5
– 2
A
0
5
3
6




= 





, 
1
2
3
2
B
3 5
–1
2
5
3
5
7
i


+
−




= 







,  
3
1
3
C
cos
tan
sin
2
x
x
x
x
x


= +

+


In the above examples, the horizontal lines of elements are said to constitute, rows
of the matrix and the vertical lines of elements are said to constitute, columns of the
matrix