Texas Instruments TI86 User Manual - Page 15

Quick Start 3 To express - and 1 keystroke combinations, this guidebook places brackets ( ã and ä ) around the word above the key to press. The TI-86 on-screen division symbol is a forward slash ( à ), as in a fraction. Following evaluation, the entry cursor automatically moves to the next line, ready for a new entry. When the TI-86 evaluates an expression, it automatically stores the answer to the builtin variable Ans, replacing any previous value. Resetting All Memory and Defaults To reset all memory and defaults, press The messages Mem cleared and Defaults set are displayed on the home screen, confirming that all memory and defaults are reset. You may need to adjust the contrast after memory and default reset. Calculating on the Home Screen To replicate the screens shown in the Quick Start activities, reset all memory and defaults once before you begin. Before doing an activity, press : to clear the screen (except before the entry retrieval and integer-part examples). Otherwise, the screens your TI-86 shows may differ from the screens pictured next to the activities. Calculating the Sine of a Number ᕡ Enter the sine function. (:) = ᕢ Enter a value. You can enter an expression, which is evaluated when you press b. ᕣ Evaluate the problem. The evaluation of the expression sine(pà4) is displayed. D -~F4E b Storing the Last Answer to a Variable ᕡ Paste the store symbol ( ¶ ) to the screen. Since a value must precede ¶ , but you did not enter a value, the TI-86 automatically pasted Ans before ¶. (continued) (:) X