Creating Variables in Lists & Spreadsheet
Naming a list at the top of a Lists & Spreadsheet column or creating a variable from a cell value automatically stores that value as a list variable. After defining the variable, you can link to it from the Graphs, Geometry, Calculator, and Data & Statistics applications as well as from other Lists & Spreadsheet pages within the current problem.
Note: When naming variables, use a name that does not exist in the current problem.
| 1. | Tap the column's name cell (the top cell of the column). |
| 2. | Type a name for the list variable, and then tap return. |
| 3. | Create elements in the list. For example, type data into each cell or use a formula to generate a column of data. |
Notes:
| • | Lists can contain empty elements (denoted by an underscore ("_"). |
| • | You can refer to a specific element in a named list from the Calculator application. Use the list name and the element's position within the list. In a list named Heights, for example, refer to the first element as Heights[1]. The expression Heights[2] refers to the second elements, and so on. |
You can share a cell value with other TI‑Nspire™ applications. When defining or referring to a shared cell in Lists & Spreadsheet, precede the name with an apostrophe (').
| 1. | Tap the cell that contains the value you want to share, and then tap again to open the context menu. |
| 2. | Tap Store. |
A formula is inserted into the cell with var as a placeholder for the variable name.
| 3. | Replace the letters "var" with a name for the variable. |
| 4. | Tap return. |
The value is now available as a variable in other applications within the same problem.