So, to build the number in a square, we must multiply it by itself. At the same mathematical notation as follows:
A2 = a*a.
For raising to the square small enough numbers of the multiplication table. For raising to square two-digit numbers and more need a calculator or computer.
The main application area where the construction in the square, as the name implies, associated with the squareof the governmental objects – finding square and squareand squarefoot of the premises, pool or area; calculation of the number of cells in the squareNoi a table or matrix; determining the number of elements of any squaretion of the objects of seats in the hall, sprouts in the garden etc.