Texas Instruments TI-84 PLUS SILV Guidebook - Page 308
Zooming In on the Table
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5. Press and hold † to scroll the table until a negative result for Y1 is displayed. Notice that the maximum length of X for this problem occurs where the sign of Y1 (box's volume) changes from positive to negative, between 10 and 11. 6. Press y -. Notice that TblStart has changed to 5 to reflect the first line of the table as it was last displayed. (In step 5, the first value of X displayed in the table is 5.) Zooming In on the Table You can adjust the way a table is displayed to get more information about a defined function. With smaller values for @Tbl, you can zoom in on the table. You can change the values on the TBLSET screen by pressing y - or by pressing à on the TABLE screen 1. Press y 0. 2. Press } to move the cursor to highlight 3. 3. Press Ã. The @Tbl displays on the entry line. 4. Enter Ë 1 Í. The table updates, showing the changes in X in increments of 0.1. Notice that the maximum value for Y1 in this table view is 410.26, which occurs at X=3.7. Therefore, the maximum occurs where 3.6