Chapter 12: Statistics
188
Note:
You can enter expressions and variables for elements.
4. Press
Í
,
}
, or
†
to update the list. If you entered an expression, it is evaluated. If you
entered only a variable, the stored value is displayed as a list element.
When you edit a list element in the stat list editor, the list is updated in memory immediately.
Attaching Formulas to List Names
Attaching a Formula to a List Name in Stat List Editor
You can attach a formula to a list name in the stat list editor, and then display and edit the
calculated list elements. When executed, the attached formula must resolve to a list. Chapter 11
describes in detail the concept of attaching formulas to list names.
To attach a formula to a list name that is stored in the stat list editor, follow these steps.
1. Press
… Í
to display the stat list editor.
2. Press
}
to move the cursor to the top line.
3. Press
|
or
~
, if necessary, to move the cursor onto the list name to which you want to attach
the formula.
Note:
If a formula in quotation marks is displayed on the entry line, then a formula is already
attached to the list name. To edit the formula, press
Í
, and then edit the formula.
4. Press
ƒ
ã
ã
ä
, enter the formula, and press
ƒ
ã
ã
ä
.
Note:
If you do not use quotation marks, the TI-84 Plus calculates and displays the same initial
list of answers, but does not attach the formula for future calculations.
Note:
Any user-created list name referenced in a formula must be preceded by an
Ù
symbol
(Chapter 11).
