LISTS and the TI-82

The TI-82 has six lists available to it. Each list can hold up to 99 elements. They are accessed by 2nd 1 through 2nd 6.

The easiest way to create a list is to use the statistics functions:

1. Clear the old lists using ClrList and the list to clear. More than one list may be cleared at a time by separating them with commas.
2. Create the new list by using the Edit command. Arrow to the list you need, type in each number followed by enter.
3. Quit the list to return to the main screen.

Operations with lists can be extremely useful, although they don't always follow mathematical standards.

• The sum, difference, product, or quotient of two lists is the sum, difference, product, or quotient of the individual elements in each list. The lists must have the same dimensions.
• A function (square, square root, cosine, etc) evaluated at a list is a list with the function evaluated at each element in the list.
• A sum, difference, product, or quotient of a list with a scalar is the sum, difference, product, or quotient of each element in the list with the scalar.

The lists can be sorted in ascending (SortA)or descending (SortD) order. Be aware, however, that sorting a list replaces the existing list, rather than creating a new list.