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Chapter 11: Lists
The list editor displays a
formula-lock symbol next to
each list name that has a
formula attached to it.
Attach the formula and generate the list.
The TI-86 calculates each list element.
A lock symbol is displayed next to the list
name to which the formula is attached.
To edit an attached formula, press b in step 3, and then edit the formula.
Using the List Editor With Attached-Formula Lists
When you edit an element of a list
referenced in an attached formula,
the TI-86 updates the corresponding
element in the list to which the
formula is attached.
When you edit or enter elements of a displayed list in any of the three current list editor
columns while an attached-formula list also is displayed, the TI-86 takes slightly longer to
execute the edit or entry. To reduce this effect, move lists with formulas off the current three-
column display, either by scrolling columns to the left or right or by rearranging the list editor.
Executing and Displaying Attached Formulas
An attached formula must resolve to a list upon execution. Some examples of formulas that
resolve to a list are
"5¹xStat"
occurs when you attempt to display the list to which the formula is attached. Also, the
formula is executed whenever a list referenced by the formula is modified — whether on
the home screen, in the list editor, or in a program.
b
,
, and
"seq(x,x,1,10)"
"{3,5, L8,4}
2
. Execution of the formula
à10"
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