Texas Instruments TI-84 PLUS SILV Guidebook - Page 172
Attaching Formulas to List Names, Entering a User-Created List Name Directly
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• 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 ÙADD10. The quotation marks designate the formula to be attached to ÙADD10. Each element of ÙADD10 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. Chapter 11: Lists 165