multidimensional array.

What is a "multidimensional array." ? Example and explaination please.

What is this used for?

multidimensional Array is the array, that is working like a row column basis. for example:

A is an multidimensional array 4X4.
below is the multidimensional Array structure.

A[0][0] A[0][1] A[0][2] A[0][3]
A[1][0] A[1][1] A[1][2] A[1][3]
A[2][0] A[2][1] A[2][2] A[2][3]
A[3][0] A[3][1] A[3][2] A[3][3]