Texas Instruments TI-86 User Manual - Page 38

26 Chapter 1: Operating the TI-86 In the example, the ¶ symbol indicates that the value before it is to be stored to the variable after it (Chapter 2). To paste ¶ to the screen, press X. When you select a function, instruction, or operator, a symbol comprising one or more characters is pasted to the cursor location. Once the symbol is pasted to the cursor location, you can edit individual characters. For example, assume that you pressed - w / / * & & b to paste yMin to the cursor location as part of an expression. Then you realized you wanted xMin. Instead of pressing nine keys to select xMin, you can simply press ! ! ! ! 2. Entering Consecutive Entries To enter two or more expressions or instructions consecutively, separate each from the next with a colon (- ). When you press b, the TI-86 executes each entry from left to right and displays the result of the last expression or instruction. The entire group entry is stored in last entry (page 28). The Busy Indicator When the TI-86 is calculating or graphing, a moving vertical line is displayed as the busy indicator in the top-right corner of the screen. When you pause a graph or a program, the busy indicator is replaced by the pause indicator, a moving vertical dotted line. Interrupting a Calculation or Graph To interrupt a calculation or graph in progress, press ^. When you interrupt a calculation, the ERROR 06 BREAK message and menu are displayed. ♦ To return to the home screen, select QUIT (press *). ♦ To go to the beginning of the expression, select GOTO (press &). Press b to recalculate the expression.