Entering an Expression

To create an expression, you enter numbers, variables, and functions using the keypad and menus. An expression is evaluated when you press [enter], regardless of the cursor location. The entire expression is evaluated according to EOS™ rules, and the answer is displayed according to the mode setting for Answer.

Most TI-84 Plus CE online calculator functions and operations are symbols comprising several characters. You must enter the symbol from the keypad or a menu; do not spell it out. For example:

• To calculate the log of 45, you must press « 45. Do not enter the letters L, O, and G. If you enter LOG, the TI-84 Plus CE online calculator interprets the entry as implied multiplication of the variables L, O, and G.
• When working with matrices, do not type the individual keys for [ , A, and ]. Use the NAMES menu in y ¾ to paste the matrix name [A] to the cursor position.

Calculate 3.76 P (L7.9 + ‡ 5) + 2 log 45.

MathPrint™

Classic

3 Ë 76 ¥ £ k 7 Ë 9 Ã y C 5 ~ ¤ Ã 2 « 45 ¤ [enter]

Note: The ~ is a notable keystroke difference as compared to Classic.

3 Ë 76 ¥ £ k 7 Ë 9 Ã y C 5 ¤ ¤ Ã 2 « 45 ¤ [enter]

Note: In MathPrint™ mode, press ~ to get out of the MathPrint™ template and continue entering the expression.