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.

Creating a Variable from a Column Name

 

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.

Creating a Variable from a Cell Value

 

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.