Operating the Calculator 195
Storing and Recalling Variable Values
Storing and Recalling Variable ValuesStoring and Recalling Variable Values
Storing and Recalling Variable Values
When you store a value, you store it as a named variable. You can then use the name
instead of the value in expressions. When the calculator encounters the name in an
expression, it substitutes the variable’s stored value.
Rules for Variable Names
Rules for Variable NamesRules for Variable Names
Rules for Variable Names
A variable name:
• Can use 1 to 8 characters consisting of letters and digits. This includes Greek letters
(but not p), accented letters, and international letters.
- Do not include spaces.
- The first character cannot be a digit.
• Can use uppercase or lowercase letters. The names
AB22, Ab22, aB22, and ab22 all
refer to the same variable.
• Cannot be the same as a name that is preassigned by the calculator. Preassigned
names include:
- Built-in functions (such as
abs) and instructions (such as LineVert). Refer to the
Technical Reference module.
- System variables (such as
xmin and xmax, which are used to store graph-
related values). Refer to the Technical Reference module for a list.
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