Texas Instruments TI-86 - Manual (Page 176)

164
Chapter 11: Lists
11LISTS.DOC TI-86, Chap 11, US English Bob Fedorisko Revised: 02/13/01 2:30 PM Printed: 02/13/01 3:03 PM Page 164 of 16 11LISTS.DOC TI-86, Chap 11, US English Bob Fedorisko Revised: 02/13/01 2:30 PM Printed: 02/13/01 3:03 PM Page 164 of 16 11LISTS.DOC TI-86, Chap 11, US English Bob Fedorisko Revised: 02/13/01 2:30 PM Printed: 02/13/01 3:03 PM Page 164 of 16
ᕤ 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.
b
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
"5 ¹ xStat" , "seq(x,x,1,10)" , and "{3,5, L 8,4} 2 à 10" . Execution of the formula
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.
The list editor displays a
formula-lock symbol next to
each list name that has a
formula attached to it.