When you first store a value in a variable, you give the variable a name.
| • | If the variable does not already exist, Calculator creates it. |
| • | If the variable already exists, Calculator updates it. |
Variables within a problem are shared by TI-Nspire™ applications. For example, you can create a variable in Calculator and then use or modify it in Graphs & Geometry or Lists & Spreadsheet within the same problem.
For more information, see Using Variables.