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Lists 11-7
8311LIST.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:21 PM Printed: 02/19/01 1:37 PM
Page 7 of 18
You can attach a formula to a list name so that each list
element is a result of the formula. When executed, the
attached formula must resolve to a list.
When anything in the attached formula changes, the list to
which the formula is attached is updated automatically.
•
When you edit an element of a list that is referenced in
the formula, the corresponding element in the list to
which the formula is attached is updated.
•
When you edit the formula itself, all elements in the list
to which the formula is attached are updated.
For example, the first screen below shows that elements
are stored to
L
3
, and the formula L
3
+10 is attached to the
list name
Ù
ADD10
. The quotation marks designate the
formula to be attached to
Ù
ADD10
. Each element of
Ù
ADD10
is the sum of an element in L
3
and 10.
The next screen shows another list, L
4
. The elements of L
4
are the sum of the same formula that is attached to L
3
.
However, quotation marks are not entered, so the formula
is not attached to
L
4
.
On the next line,
L
6
!
L
3
(1):L
3
changes the first element in L
3
to
L
6
, and then redisplays L
3
.
The last screen shows that editing L
3
updated
Ù
ADD10
, but
did not change
L
4
. This is because the formula L
3
+10 is
attached to
Ù
ADD10
, but it is not attached to L
4
.
Note:
To view a formula that is attached to a list name, use the stat list
editor (Chapter 12).
Attaching Formulas to List Names
Attaching a
Formula to a List
Name