Entering An Expression - Texas Instruments TI-82 STATS Getting Started

Entering an expression

An expression consists of numbers, variables, operators, functions,
and their arguments that evaluate to a single answer. 2X + 2 is an
expression.
Type the expression, and then press Í to evaluate it. To enter
a function or instruction on the entry line, you can:
Press its key, if available. For example, press «.
— or —
Select it from the CATALOG. For example, press y
N, press † to move down to log( , and press Í to
select log( .
— or —
Select it from a menu, if available. For example, to find
the round function, press , press ~ to select NUM ,
then select 2:round( .
Enter and evaluate the expression p Q 2 .
Example:
Press
y B ¯ 2
Í
Result
9