# What is the Excel formula, and what is it for?

If you have ever worked with electronictables on the computer, then with great confidence you can say that you opened and edited them in the famous Microsoft Excel program. And this is completely unsurprising, since this application is the second most common in the segment of standard office utilities.

So, the formulas in this appendix are calledspecial text commands that allow users in a simple and convenient form for them to manage very complex mathematical calculations. For example, using their capabilities, you can create your own functions. In order not to be unfounded, here is the Excel formula written as "= SUMM (B1: B64)".

The possibilities of formulas are very wide. Let's take a situation where you need to duplicate the automatic filling of a range of cells. Of course, you can use tedious manual calculation (we do not advise doing this!), But why then do you work in a spreadsheet? To do this, try the following: open a new table and in the first cell (A1) enter any number. Suppose that your own Excel formula should automatically double the value in each subsequent cell.

Then click the left mouse button on cell A2,then put the cursor in the formula input line. Enter the sign "=", after which we write "A1 * 2" (in the end we get "= A1 * 2"). Click on "Enter", after which the second column immediately displays the number "2". But you want the Excel formula to spread to other cells? Do not worry, it's even easier.

It does not take long to talk about how muchuseful is such functionality for those who are constantly forced to work with electronic documents! You will be completely rid of the need for tedious and constant work with the "Calculator", the time of execution of even complex work operations will decrease many times. In addition, the formula line in Excel is likely to greatly facilitate the life of students, as they quickly and effortlessly calculate almost any laboratory work.

In a word, having learned how to work correctly with the program, you will greatly facilitate your life by increasing your efficiency.