1 Exploring your calculator
1.1 Setting up your scientific or graphics calculator
First have a look at your calculator keyboard. Some of the main features are described below.
The screen (also called the display) is at the top. This is where calculations and so on are displayed. The remainder of the calculator, where the various keys are located, is called the keyboard.
The number keys are usually in the bottom part of the keyboard and there are also the four operation keys: , , and .
There is another important key, usually marked or , which is used to complete calculations and to confirm other instructions to the calculator. There may also be keys which are used to draw graphics and cursor keys marked with arrow heads, which enable you to move around the screen of the calculator.