Entering An Expression - Texas Instruments TI-84 Plus Manual Book

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, if the function appears on the
CATALOG. For example, press y N, press † to move down to
, and press Í to select
log(
— or —
• Select it from a menu, if available. For example, to find the
function, press , press ~ to select
Example: Enter and evaluate the expression p Q 2.
Press
y B ¯
2
Í
Getting Started
.
log(
NUM
Result
, then select
2:round(
round
.
7