Windows 7 Feature - Calculator

Calculator

We gave Calculator a fresh look and new features, including new Programmer and Statistics modes. Unit conversion translates Celsius to Fahrenheit, ounces to grams, and joules to BTUs. Handy calculation templates can help you compute stuff like fuel economy and auto lease payments.

Calculation history displays what you’ve done, and if you've got a touchscreen PC, you'll be able to tap out calculations right on the screen.

Using Calculator in Windows 7

You can use Calculator to perform simple calculations such as addition, subtraction, multiplication, and division. Calculator also offers the advanced capabilities of a programming, scientific, and statistical calculator.

You can perform calculations by clicking the calculator buttons, or you can type calculations by using your keyboard. You can also use the numeric keypad to type numbers and operators by pressing Num Lock.

Calculator window

1. Open Calculator by clicking the Start button . In the search box, type Calculator, and then, in the list of results, click Calculator.
    
2. Click the View menu, and then click the mode that you want.
   When you switch modes, the current calculation is cleared. Calculation history and numbers stored by the memory keys are retained.
   
   
3. Click the calculator keys to perform the calculation you want.

USING SCIENTIFIC MODE

1. Click the View menu, and then click Scientific.
   
   
2. Click the calculator keys to perform the calculation you want.
   To access inverse functions, click the Inv key.

Notes

• In Scientific mode, Calculator is precise to 32 significant digits.
  
  
• Calculator honors operator precedence when calculating in Scientific mode.

 USING PROGRAMMER MODE

1. Click the View menu, and then click Programmer.
   
   
2. Click the calculator keys to perform the calculation you want.

Notes

• In Programmer mode, Calculator is precise up to 64 bits, depending on the word size that you've selected.
  
  
• Calculator honors operator precedence when calculating in Programmer mode.
  
  
• Programmer mode is an integer only mode. Decimal portions are discarded.

USING CALCULATION HISTORY

Calculation history keeps track of all the calculations that Calculator performs in a session and is available in Standard and Scientific modes. You can change the values in the calculations in your history. While you're editing the calculation history, the result of the selected calculation is displayed in the result area.

1. Click the View menu, and then click History.
   
   
2. Double-click the calculation that you want to edit.
   
   
3. Enter the new values that you want to calculate, and then press Enter.

Note

Calculation history is kept separately for Standard and Scientific modes. The history that's displayed depends on the mode that you're using.

CONVERT VALUES FROM ONE UNIT OF MEASUREMENT TO ANOTHER

You can use Calculator to perform conversions for different units of measure.

1. Click the View menu, and then click Unit conversion.
   
   
2. Under Select the type of unit you want to convert, click the three lists to select the types of units you want to convert, and then, in the From box, enter the value that you want to convert.

USING STATISTICS MODE 

When you use Statistics mode, you can enter the data that you want to calculate statistics for and then perform the calculations. When you enter the data, it's displayed in the history area and the number of values you have entered is displayed in the calculation area.

1. Click the View menu, and then click Statistics.
   
   
2. Type or click your first piece of data, and then click Add to add the data to the dataset.
   
   
3. Click the button for the statistical calculation you want to perform:

   Button Function Average of the values Average of the square of the values Sum of the values Sum of the square of the values Standard deviation Standard deviation of population