The mathematical symbol designating operation of extraction of a root is not among the first 128 signs of quoted tables which without problems can be entered and displayed by any program for work with texts. Therefore the way of an insert in the text of this symbol depends on opportunities of the used program. Besides, it is necessary to consider also possibilities of that program by means of which the created text will be looked through subsequently.

The square is a geometrical figure at which all four parties are equal also all right angles. It is possible to divide without problems a square into 4 equal squares or into 4 identical triangles at once. But how to divide a square into six equal parts? It can be done both with a ruler, and without it.

The square root from number X is a number which square is equal to X. Respectively, to calculate a square root from number in degree, it is necessary to build at first number in degree, that is to receive result of multiplication of number on itself necessary number of times. Further process of calculation of a root of the received result begins.

Operation calculation of a root from any number means finding of such value at which multiplication of this value by itself is so much times how many it is specified in a root indicator, gives as a result subradical number. If the indicator of a root is equal to two, then such root is called "square". If necessary to calculate a square root the user of the computer has a choice from several options.