T-Mobile G1 User Guide R1.0 122 September 8, 2008
Calculator
To open Calculator, press HOME and select the Calculator icon .
The Calculator offers two panels: basic and advanced. Switch back and forth between panels by
pressing MENU and selecting Advanced panel or Basic panel, as you wish.

Calculator panels

Two calculators panels are available: basic and advanced. Use the Basic panel to enter numbers
and perform basic addition, subtraction, multiplication, and division. Use the Advanced panel to
insert advanced operators or delimiters, such as sine, cosine, tangent, square root, parentheses, etc.
Switch back and forth between calculator panels by pressing MENU and selecting Advanced
panel or Basic panel, as you wish. As soon as you select an advanced operator, the panel switches
back to Basic, where your operator appears.
• When you touch a key on the screen, the key flashes red to let you know the selection was made.
Make sure you see the red flash before entering your next number or completing the operation.
• To delete numbers, one at a time, press the DEL key or touch CLEAR on the screen.
• To clear the display and start a new calculation, press ENTER or the TRACKBALL.

Operation history

• To scroll through your operations, roll the TRACKBALL up or down.
• To clear your operation history, press MENU and select Clear history.
The key flashes
red when you
touch it
Numbers and
basic operators Advanced operators