Texas Instruments TITANIUM TI-89 User Manual
Page 161

Operating the Calculator
161
Entering an Expression
Entering an Expression
Entering an Expression
Entering an Expression
Type the expression, and then press
¸ to evaluate it. To enter a function or
instruction name on the entry line, you can:
•
Press its key, if available. For example, press:
2 W
– or –
•
Select it from a menu, if available. For example, select
2:abs
from the Number
submenu of the MATH menu.
– or –
•
Type the name letter-by-letter from the keyboard. (On the TI-89 Titanium, use j
and
2 ™ to type letters.) You can use any mixture of uppercase or lowercase
letters. For example, type
sin(
or
Sin(
.
Example
Example
Example
Example
Calculate 3.76 ÷ (M7.9 + ‡5) + 2 log 45.
Type the function name in
this example.