Application Guide

122 Calculator Application
Entering and Evaluating Math Expressions
Entering Simple Math Expressions
Note: To enter a negative number on the handheld, press v. To enter a negative
number on a computer keyboard, press the hyphen key (-).
Suppose you want to evaluate
1. Select the entry line in the Calculator work area.
2. Type 2^8 to begin the expression.
3. Press ► to return the cursor to the baseline.
4. Complete the expression:
Type *43/12.
Handheld: Type r 43 p 12.
5. Press Enter to evaluate the expression.
The expression is displayed in standard mathematical notation, and the result is
displayed on the right side of the Calculator.
Note: If a result does not fit on the same line with the expression, it is displayed on the
next line.
Controlling the Form of a Result
You might expect to see a decimal result instead of 2752⁄3 in the preceding example.
A close decimal equivalent is 917.33333..., but that’s only an approximation.
By default, Calculator retains the more precise form: 2752⁄3. Any result that is not a
whole number is shown in a fractional or (CAS) symbolic form. This reduces rounding
errors that could be introduced by intermediate results in chained calculations.