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TI-83 Plus Statistics 339
Handling Errors Resulting from Attached Formulas
On the home screen, you can attach to a list a formula that references
another list with dimension 0 (Chapter 11). However, you cannot display
the formula-generated list in the stat list editor or on the home screen
until you enter at least one element to the list that the formula
references.
All elements of a list referenced by an attached formula must be valid for
the attached formula. For example, if
Real
number mode is set and the
attached formula is
log(L1)
, then each element of
L1
must be greater than
0, since the logarithm of a negative number returns a complex result.
Tip: If an error menu is returned when you attempt to display a formula-
generated list in the stat list editor, you can select
2:Goto
, write down the
formula that is attached to the list, and then press
‘
Í
to detach (clear)
the formula. You then can use the stat list editor to find the source of the error.
After making the appropriate changes, you can reattach the formula to a list.
If you do not want to clear the formula, you can select
1:Quit
, display the
referenced list on the home screen, and find and edit the source of the error. To
edit an element of a list on the home screen, store the new value to
listname
(
element#
)
(Chapter 11).