Can you say a vector is an element of a matrix?

[frootloopers]

A specific example: can one say the vector [2, 3, 1] is an element of the matrix X =

2	0	2
0	3	3
0	0	1

?

 

[frootloopers]

Otherwise, can one say a matrix [2 3 1] is an element of matrix X?