User manual TEXAS INSTRUMENTS TI84PLUS

[. . . ] TI-84 Plus and TI-84 Plus Silver Edition Guidebook Note: This guidebook for the TI-84 Plus or TI-84 Plus Silver Edition with operating system (OS) version 2. 55MP. If your calculator has a previous OS version, your screens may look different and some features may not be available. You can download the latest OS education. ti. com/guides. Important Information Texas Instruments makes no warranty, either express or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, regarding any programs or book materials and makes such materials available solely on an "as-is" basis. In no event shall Texas Instruments be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials, and the sole and exclusive liability of Texas Instruments, regardless of the form of action, shall not exceed the purchase price of this product. [. . . ] For example, if you use the n/d template, both the numerator and denominator must be integers. 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 ?You then can use the stat list editor to find the Chapter 12: Statistics 189 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. In the stat list editor, move the cursor onto the name of the list to which a formula is attached. All list elements remain, but the formula is detached and the lock symbol disappears. In the stat list editor, move the cursor onto an element of the list to which a formula is attached. Press , edit the element, and then press . The element changes, the formula is detached, and the lock symbol disappears. All elements of one or more specified lists are cleared, each formula is detached, and each lock symbol disappears. All elements of all lists in memory are cleared, all formulas are detached from all list names, and all lock symbols disappear. ? Editing an Element of a Formula-Generated List As described above, one way to detach a formula from a list name is to edit an element of the list to which the formula is attached. The TI-84 Plus protects against inadvertently detaching the formula from the list name by editing an element of the formula-generated list. Because of the protection feature, you must press before you can edit an element of a formula-generated list. The protection feature does not allow you to delete an element of a list to which a formula is attached. To delete an element of a list to which a formula is attached, you must first detach the formula in any of the ways described above. Switching Stat List Editor Contexts Stat List Editor Contexts The stat list editor has four contexts. View-elements context View-names context Chapter 12: Statistics 190 ?? Edit-elements context Enter-name context The stat list editor is first displayed in view-elements context. To switch through the four contexts, select 1:Edit from the STAT EDIT menu and follow these steps. Press } to move the cursor onto a list name and switch to view-names context. Press ~ and | to view list names stored in other stat list editor columns. 2. [. . . ] Press y L 2 to display the MEMORY MANAGEMENT / DELETE menu. Select the type of data you want to delete, or select 1:All for a list of all variables of all types. A screen is displayed listing each variable of the type you selected and the number of bytes each variable is using. to move the selection cursor (4) next to the item you want to delete, and then press {. ? Appendix C: Service and Warranty Information 402 5. [. . . ]