Entering Expressions And Instructions - Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book

Using the Mode Screen to turn the clock on
1. If the clock is turned off, Press † to highlight
.
CLOCK ON
2. Press Í Í.
Using the Catalog to turn the clock on
1. If the clock is turned off, Press y N
2. Press † or } to scroll the
selection cursor points to
3. Press Í Í.
Turning the Clock Off
1. Press y N.
2. Press † or } to scroll the
selection cursor points to
3. Press Í Í.

Entering Expressions and Instructions

What Is an Expression?
An expression is a group of numbers, variables, functions and their arguments, or a combination of
these elements. An expression evaluates to a single answer. On the TI-84 Plus, you enter an
expression in the same order as you would write it on paper. For example, pR
You can use an expression on the home screen to calculate an answer. In most places where a
value is required, you can use an expression to enter a value.
TURN
until the
CATALOG
ClockOn.
until the
CATALOG
.
ClockOff
Chapter 1: Operating the TI-84 Plus Silver Edition
2
is an expression.
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