Texas Instruments TI-82 STATS Manual Book page 82

Defining Functions
Defining a
Function from
the Home Screen
or a Program
Evaluating Y=
Functions in
Expressions
3.6 Function Graphing
(continued)
To define a function from the home screen or a program, begin
on a blank line and follow these steps.
1. Press ƒ [ ], enter the expression, and then press ƒ
ã
ã
[ ] again.
2. Press ¿.
3. Press  ~
1
menu.
VARS Y.VARS
4. Select the function name, which pastes the name to the
cursor location on the home screen or program editor.
5. Press Í to complete the instruction.
"! ! ! ! Y
expression
"
When the instruction is executed, the TI-82 STATS stores the
expression to the designated variable
and displays the message
You can calculate the value of a
value of . A list of values returns a list.
X
n value
Y ( )
n value1 value2 value3
Y ({ , ,
to select
1:Function
n
Y
.
Done
function
Y=
. . . value n
, , })
from the
n, selects the function,
n at a specified
Y