# Overview of Calculator

The device comes with a calculator that has two modes:

- Simple Calculator: Performs a variety of basic calculation functions.
- Engineering Calculator: Performs a variety of advanced calculation functions.

To open the Calculator, tap
> Programs > Calculator.

To switch to Engineering Calculator mode, turn the device to landscape orientation. To switch to Simple Calculator mode, turn the device to portrait orientation.

Notes:

- Both calculators display numbers in fixed-point notation and decimal base.
- The Simple Calculator is only available when using the device in portrait mode.
- The Engineering Calculator is only available when using the device in landscape mode.

To learn more about using the Calculator program, tap the links below:

Simple Calculator

Engineering Calculator

Using Calculator Memory

# Simple Calculator

Use the Simple Calculator to do basic arithmetic such as addition, subtraction, multiplication, and division. You can also work with numbers you store in the calculator memory.

Operate the calculator the same as you would a handheld calculator by touching the onscreen keys to enter numbers and perform calculations.

- Touch C to clear the current number or calculation.
- Touch the arrow key next to the numerical display to clear the last digit entered. Touch and hold the arrow key to continue clearing digits.
- Touch Copy to copy the displayed value to the clipboard. You can then paste it in any other application that has a paste function, such as Notes.

Notes:

- The Simple Calculator can only be used when the device is in portrait mode.
- A maximum of 9 digits can be entered for each number.
- The Simple Calculator will revert to exponential display if a number is larger than 9 digits for positive numbers (for example, 1.23e+11 = 123,000,000,000) or 8 digits for negative numbers (for example, 1.23e-11 = 0.0000000000123).
- Exceptions are indicated by an E in the calculation result display. When an exception occurs, (for example, division by zero or some other illegal operation) calculator functions are disabled until you touch C to clear the exception.

#### See also

Overview of Calculator

Engineering Calculator

Using Calculator Memory

# Engineering Calculator

Use the Engineering Calculator to perform more complex calculations such as square roots, logarithmic and trigonometric functions, percentages, and more. The Engineering Calculator has two displays, the formula editor and the calculation result.

Formula Editor
When you touch calculation function buttons, the corresponding operand or operator is displayed in the formula editor.You can continue to enter operands and operators to build the equation.

Tap the arrow key next to the formula editor display to clear the last operand or operator entered. Tap and hold the arrow key to continue clearing entries.

Calculation Result
The calculation result is displayed when you touch the equal (=) button. Clear the calculation result by touching the AC or C buttons.

Calculation Function Buttons

- Touch FN to access the second (green) layer of engineering calculation buttons.
- Touch Rad/Deg to toggle between degrees or radian measurement
- Touch AC to clear the formula expression, calculation result, or exception.
- Touch C to clear the calculation result or exception.
- Touch = to display the result of the formula entered into the formula editor.

Notes:

- The Engineering Calculator can only be used when the device is in landscape mode.
- The Engineering Calculator will revert to exponential display if a number is larger than 14 digits for positive and negative numbers
  (for example, 1.23e+11 = 123,000,000,000, 1.23e-11 = 0.0000000000123).
- Exceptions are indicated by an E in the calculation result display. When an exception occurs, (for example, division by zero or some other illegal operation) calculator functions are disabled until you touch AC or C to clear the exception. Note that touching AC clears not only the exception, but also the formula expression and the calculation result. Touching C clears the exception only.

#### See also

Overview of Calculator

Simple Calculator

Using Calculator Memory

# Using Calculator Memory

Use the Calculator memory to store and add the results of calculations.

- Tap M+ to add the currently displayed number to memory. An M will appear in the calculation display whenever a value is stored in memory.
- Tap MR to recall the number or result stored in memory
- Tap MC to clear the contents of the memory

#### See also

Overview of Calculator

Simple Calculator

Engineering Calculator