Using The Home Screen - Texas Instruments Tl-84 Plus CE Quick Start Manual

Using the Home Screen
The Home Screen is the
primary screen of the
Tl-84 Plus CE . You can
enter instructions and
evaluate expressions from
this screen (where the
answers are also
displayed). Return to the
Home Screen from any
other screen, by pressing
~[QUIT].
Entering an Expression
HORHRL HORT AUTO R[Al RADIAN NP
a
I
An expression on your Tl-84 Plus CE consists of numbers,
operators, variables, and functions. You can type an
expression using the keypad and then evaluate it to a
single answer.
1. Press
~
[it]
0
2 .
2. Press
I ENTER I
to see the
answer.
Note:
You can change any
expression on your screen by
using the backspace
GJ
key, the
delete
[ill]
key, or the insert
~[INS] keys.
Storing a Value
HORHAL rLOAT AUTO REAL RADIAN NP
O
u2
......... .... .................. f?,.?.11. : n1?.5.3W.
Your graphing calculator allows you to store numerical
values. You can recall them from memory using variable
names.
1. Press 25
!STO•I IALPHAI
[A].
2. Press
!ENTER!.
3. Press 2
0
IALPHAI
[A].
4. Press
!ENTER!.
NORMAL flDAT AUTO REAL RADIAN NP
n
....... ?. 9 .
ii
.............. 9. ~ .