Application Guide

This means: Calculate 5+8
3
and store the result as a variable named num.
4. Press ·.
Calculator creates the variable num and stores the result there.
Creating a Variable in the Computer Software
When creating a variable in the computer software, use the following conventions. As
alternatives to using & (store), you can use “:=” or the Define command. All of the
following statements are equivalent.
5+8
3
& num
num:= 5+8
3
Define num=5+8
3
Checking a Variable’s Value
You can check the value of an existing variable by entering its name on the Calculator
entry line. When you type the name of a stored variable, it appears in bold type.
▶ On the Calculator entry line, type the variable name num and press ·.
The value most recently stored in num is displayed as the result.
Automatically Creating Variables in Graphs & Geometry
In the Graphs and Geometry applications, functions defined on the entry line are
automatically stored as variables.
In this example, f1(x)=x
3
is a variable definition, which allows it to be displayed in
other applications including a table in the Lists & Spreadsheet application.
Using Variables 149