13

Lists

You can do list operations in HOME and in programs. A list consists of comma-separated real or complex numbers, expressions, or matrices, all enclosed in braces. A list may, for example, contain a sequence of real numbers such as {1,2,3}. (If the Decimal Mark in MODES is set to Comma, then the separators are periods.) Lists represent a convenient way to group related objects.

There are ten list variables available, named L0 to L9. You can use them in calculations or expressions in HOME or in a program. Retrieve the list names from the VARS menu, or just type their names from the keyboard.

You can create, edit, delete, send, and receive named lists in the List catalog (>6+,)7@LIST). You can also create and store lists—named or unnnamed—in HOME.

Creating lists

Create a list in the List Catalog

List variables are identical in behaviour to the columns C1.C0 in the Statistics aplet. You can store a statistics column to a list (or vice versa) and use any of the list functions on the statistics columns, or the statistics functions, on the list variables.

1.Open the List catalog.

>6+,)7@LIST.

2.Highlight the list name you want to use (L1, etc.) and press (',7a￿to display (',7athe List editor.

Lists

13-1

Page 187
Image 187
HP 40G manual Lists, Creating lists, Create a list in the List Catalog, Open the List catalog