Handling errors resulting from attached formulas, Detaching formulas from list names, Detaching a formula from a list name – Texas Instruments TI-84 User Manual

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Chapter 12: Statistics

292

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

must be greater than 0, since the logarithm of a negative

number returns a complex result.

Notes:

•

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).

Detaching Formulas from List Names

Detaching a Formula from a List Name

You can detach (clear) a formula from a list name in several ways.