Handspring 90 - Manual (Page 114)

Page 114 Application-Specific Tasks
Calculator
Calculator includes two operating modes: Basic and Advanced. In Basic mode you can perform
simple mathematical calculations. Basic mode uses input precedence, like most 4-function
calculators, and the order of the numbers entered results in an answer regardless of operation. In
Advanced mode you can access scientific functions and perform sophisticated math calculations.
The Advanced mode uses algebraic precedence, like most scientific calculators, and the results
differ depending on the rules associated with the algebraic equation. This section explains how
to select the operating mode and use the buttons and menu options available in each mode.
Selecting the Calculator mode
The Toggle Mode command enables you to choose whether you want to work in Basic Calculator
mode or Advanced Calculator mode. You can change modes at any time.
To select the Calculator mode:
1. Press Option and then press Memo Pad .
Tip: You can also access Calculator by tapping the Calculator icon in the Applications
Launcher.
2. Press Menu .
3. Under Options, select Toggle Mode (/M).
Tip: You can also toggle between Basic and Advanced mode by holding Option and
repeatedly press Memo Pad .
Using the Basic Calculator buttons
The Basic Calculator includes the following buttons.
Clears the last number you entered. Use this button if you make a mistake while
entering a number in the middle of a calculation. This button enables you to re-
enter the number without starting the calculation over.
Clears the entire calculation and enables you to begin a fresh calculation.
Toggles the current number between a negative and positive value. If you want to
enter a negative number, enter the number first and then press the +/- button.
Places the current number in memory. Each new number you enter with the M+
button is added to the total already stored in memory. You can add either a
calculated value or a number you enter by pressing the number buttons. Pressing
this button has no effect on the current calculation (or series of calculations); it
merely places the value into memory until it is recalled.
Recalls the stored value from memory and inserts it in the current calculation.
Clears any value that is stored in the Calculator memory.