On the keyboard of the computer there is no sign of a square root. Need of input of this sign can arise at a set of the texts containing mathematical formulas. Also input of the operator for extraction of a square root can be required by drawing up programs in some programming languages.
Instruction
1. In the presence of the Microsoft Office software package with the installed Equation Editor component start this component then press the screen button with designation of a square root. Enter the expression which is subject to placement under a root.
2. In the absence of the Equation Editor component and also during the work in other office packages, for example, OpenOffice.org or Abiword, find a symbol of a square root in the table. It looks so: √. The way of a conclusion of such table depends on what editor you use. For example, "to Insert" it into Abiword - "Symbol". Find the required sign in the list and press the Insert button. It will not be possible to place under it the whole mathematical expression therefore it should be placed in brackets and to arrange to the right of the sign.
3. It is possible to insert a symbol of a square root and into the web page provided that on it the Unicode encoding is used. Receive this sign as it is described above then select it with the mouse, copy it in a clipboard (Ctrl+C), pass in the editor of the HTML-code, place the cursor in the desirable place of the text and insert a symbol (Ctrl+V).
4. Single-byte encodings (KOI-8R, KOI-8U, 1251) do not contain the sign of a square root. If the web page uses this coding, instead of this sign it is possible to use its pseudo-graphic representation which can look, for example, so: c= / (a+b) In addition, it is possible to insert all formula into such page entirely in the form of the image: <img src=formulaimage.gif> where formulaimage.gif is a file name with the image of a formula.
5. When programming on the BASIC for extraction of a square root use the operator of SQR. Consider that in the majority of other languages (for example, Pascal) such operator designates not extraction of a root, but construction in the second degree (multiplication of number by himself). When programming in such languages take a square root through operator of SQRT. Choose a way of its record (lowercase or capital letters) depending on the version of the interpreter or the compiler.