Greetings!
If you occasionally work with a computer with numbers, then you may need to use a calculator. In the operating room Windows system there is a built-in calculator and this guide will show you how to open it.

Open calculator from the list of programs

By pressing the button Start, the menu is displayed. When you click "All programs" in it, a list of utilities available on the computer will be displayed. Among them, there must be Calculator... For quick display of this application you can enter in the search bar located in the same place Calculator.

The application of the same name will be displayed, you just need to launch it.

As a result, you will see a calculator window in which you can make the necessary calculations.

Open calculator via system command

On the keyboard, type the combination Win + R, as a result of which the system window will be displayed Execute.

In it, enter the text “ calc.exe"(Without quotes), and then press the key Enter... This will open the calculator window.

Calculator quick call

You can create a shortcut with the app Calculator on your desktop. To do this, hold down the mouse and drag the application shortcut that is in the menu Start, on the desktop.

Then open the properties of the shortcut and in the field Quick call: enter the desired key combination, when pressed, it would open Calculator.

Now you can quickly call Calculator from a shortcut or by pressing a keyboard key combination. Very comfortably!

The instruction is universal and is suitable for both past versions of Windows (XP, Vista, 7, 8, 8.1) and latest windows 10.

If you have any questions, I will be happy to answer them in the comments to the material.

The Windows operating system has a calculator program with which you can perform calculations of varying complexity and translate values. There are several ways to find it on your computer.

Instructions

Calculator: overview
This program is designed to perform the same actions as a regular calculator. It performs basic arithmetic operations such as addition and subtraction, as well as functions engineering calculator, such as finding logarithms and factorials.

Calculator view in Windows 7 and Windows XP

Launching Calculator

To start the program "Calculator" you need to open the menu "Start"... Then go to the tab "All programs"... Now move the mouse cursor up to the point "Standard"... Move the cursor to the right to show the tab "Calculator"... Run it (press Enter).

You can also run the program with the "calc" command.

Note

The first two points ( "Start" and "Run") can be started by hotkey Win + R

Performing simple calculations

Number input
Entering a number is carried out by pressing keys or by clicking with the mouse on the buttons of the calculator. If an error occurs and the last digit is not the one you want, you can delete it. To do this, use the / button (the first button in Windows XP, the second button in Windows 7) or the key of the same name on the keyboard.

You can remove the entire number by pressing the / button or the Delete key.

Arithmetic operations
The calculator has four arithmetic operations:
+ (addition), - (subtraction), * (multiplication), and / (division).
They can be pressed on the keyboard or with the mouse
Calculations
Simple calculations are done in 4 steps:
1. Entering the first number
2. Entering the operation.
3. Enter the second number.
4. Pressing the / button or the = key or the Enter key.
After that, you can see the result. For example, let's calculate the value of the expression "2 times 2". To do this, press the buttons in sequence: 2 * 2 =
The calculator displays 4.

To set negative numbers, you must first type a number without a minus, and then press the button or the F9 key. If you press it again, the minus will disappear.

Note
To be able to enter numbers and operators with numeric keypad, press the key NUM LOCK.

Copy numbers
Often it is required to take a number from some document, for example, from a spreadsheet, and make calculations with it. In any text editor or a processor with a part of the text is easy. You can do the same with a calculator. To do this, the Calculator has a command "insert" "Edit" Ctrl + V.
It may also be necessary to copy the calculated results to another document. To do this, the Calculator has a command "copy"... The command can be called, either by selecting the appropriate menu item "Edit" or by pressing the keyboard shortcut Ctrl + C.

Useful features
Sometimes the number is so long that it is impossible to understand what the number is. For example, how many zeros are there in this number: 1,000,000,000,000? To solve this problem, the number is divided into groups of three digits. In the Calculator, this is done in the "View" menu by the "Number of digits in a group" command.
One more example. Let's dial 123 + 7 and then we understand what we wanted to multiply. The last operation cannot be undone, the second number is already there. The only way is to undo everything and dial it all over again. To do this, press the / button or the ESC key.

Interest
One of the most common actions in accounting is the calculation of interest and operations with them. The Calculator has a separate button for this operation. Percentages are not always on their own, often you need to do something with them. Therefore, the calculation of interest and arithmetic operations are combined. In addition, you need to understand where one number ends and the second begins. Since percentages are written after the number, in order to find out from 888 50%, you need to write down 8 8 8 5 0%. But then it is not clear which numbers are written: 8885 0 or 88 850 or something else. To clearly separate one number from another, you need to press any arithmetic operation between them. Then, after pressing the percentage, the percentage of the number will be cleared. And after one, you can perform the dialed operation by pressing =. So, the sequence of working with percentages:
1. We write the number from which you want to calculate the percentage.
2. Presses the operation button. What kind of operation it will be depends on what needs to be done. For example, if you need to reduce the number by a few percent, then the "minus" operation.
3. We write the value of the percentage - the second number.
4. Press the% button. The percentage of the set number appears on the screen.
5. Press =. The operation is in progress.
Example.

Let's increase 888 by 50%.

Press: 888 + 50% it turns out 444.

Additional features
There are two more useful buttons on the Calculator that are / and /.

If you need to divide 1 by some number, then it is most convenient to dial this number and press 1 / x.

And sqrt calculates the number that, being multiplied by itself, will give the original - the extraction of the square root.

Working with memory
To evaluate some expressions, you need to remember intermediate results. For example, when calculating the expression 12 * 98-34 * 65, you need to remember the result of the calculation 12 * 98, then calculate 34 * 65, and then subtract the second and the number from the first. But where to remember the result?
Of course, you can copy a number using CTRL + C and write it down somewhere, but there is an easier way. The calculator has one memory location for this. This is a place where you can remember one number, but it is enough to evaluate many expressions. In what follows, we will not call it "memory cell", we will say "memory".
So, the Calculator can remember 3 numbers: the last one typed, the number on the screen and the number in memory.
There are the following operations for working with memory:
To enter a number from the screen into memory, press the / button.
To copy a number from memory to the screen, press the / button.
To clear the memory (write 0 there), press the / button. There is no other way to remove a number from memory, and buttons will not help.
Press the / button to add the displayed number to the number stored in memory. The result will be in memory.

Note
After saving the number, the indicator M appears above the memory buttons on the calculator panel. Each new number stored in memory replaces the previous one.

Keyboard keys equivalent to calculator keys

Engineering Mode

In order to transfer the "Calculator" to the Engineering mode, you need to go to the menu View and choose Engineering or press hotkey Alt + 2... In addition to the normal mode, the following are available:

• trigonometric and hyperbolic ("Hyp" checkbox) functions, natural and decimal logarithms, exponentiation (separate buttons are highlighted for squares and cubes). Inverse functions (root extraction for exponentiation) are available through the "Inv" checkbox (automatically reset).
• conversion of fractions of a degree to minutes and seconds (back through the "Inv" flag), calculation of factorials (for a non-integer argument, instead of a factorial, the gamma function Γ (x + 1) is calculated).
• grouping of operations (buttons with brackets, there is a nesting level indicator), switching display modes (fixed / floating point).
• calculating the remainder of the division
• bitwise operations: AND, OR, NOT, XOR. Before calculating fraction discarded.
• shift to the left (shift to the right through the "Inv" flag)

There are two more modes in the Calculator program: Programmer ( Alt + 3) and Statistics ( Alt + 4).

1.Using the Run program

• Right click on Windows icon(in place of the "Start" button) and select the "Run" command from the menu. Or press the Windows + R combination on the keyboard.

• In the “Open” line of the “Run” application, enter the command “ calc”And click OK.

The calculator will start.

2. Through Windows search

The search feature in Windows 8 is available from several locations:

• from the context menu of the "Windows" button ("Start") - item "Find";

• from the Charms bar, which appears on the right side of the screen, if you move the cursor to the upper or lower right corner or press + C on the Windows keyboard;

• from the home screen (magnifying glass icon in the upper right corner);

• from any folder in Windows Explorer.

In the search bar, as in the previous case, enter the command calc and launch the found application.

In Windows 8, there is not one, as before, but two whole calculators: a standard one (the one that was in the “All Programs -> Standard” folder in Windows 7) and a full-screen one - a new metro application.

3. From the list of applications

From your desktop, press the “Windows” key or click on the “Start” icon to get to home screen... Click on the arrow button at the bottom of the window - this will take you to the "Applications" section.

• The Applications section is a list of all programs installed on your computer. It doesn't look the same as it did on Windows 7, but it displays the same thing, so you're unlikely to get confused about it. As you can see, it contains two calculators - standard (in our example it is in the Accessories category) and full-screen (in the Tools category).

The full-screen calculator is easier to use on mobile devices, standard - on computers.

This is how the “metro calculator” looks like:

4. Through Windows 8 Explorer

Appendix calc.exe located in the C: Windowssysem32 folder. You can run it directly from there if you want.

The executable file of the full screen calculator, like other Windows 8 metro applications, is located in the hidden directory C: Program FilesWindowsApps. Access to this directory is limited for security and system stability reasons.

5.Using a shortcut

If you often use the calculator, it will be convenient for you to launch it with a shortcut from the desktop or from the taskbar.

To create a shortcut open the file location (C: WindowsSystem32), call context menucalc.exe and select the "Create shortcut" item from it.

Confirm the agreement to place the shortcut on the desktop.

Run the calculator double click by label.