Chapter 11: Lists
165
•
The
Ù
symbol does not precede a list name when the name is pasted where a list name is the
only valid input, such as the stat list editor’s
Name=
prompt or the stat plot editor’s
XList:
and
YList:
prompts.
Entering a User-Created List Name Directly
To enter an existing list name directly, follow these steps.
1. Press
y 9 ~
to display the
LIST OPS
menu.
2. Select
B:
Ù
, which pastes
Ù
to the current cursor location.
Ù
is not always necessary.
Note:
You also can paste
Ù
to the current cursor
location from the
CATALOG
.
3. Enter the characters that comprise the list name.
Attaching Formulas to List Names
Attaching a Formula to a List Name
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
L3
, and the formula
L3+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
L3
and 10.
The next screen shows another list,
L4
. The elements of
L4
are the sum of the same formula that
is attached to
L3
. However, quotation marks are not entered, so the formula is not attached to
L4
.
