Texas Instruments TI-82 Manual page 11

Evaluate Y at x = 10 by recalling the previous entry with
1
2nd ENTER
and typing over the 7, and press
&
1.2 Functions and Graphs
When you are asked to estimate or approximate an output or an input value, you can use your
calculator in the following ways:
¥ tracing a graph
¥ close values obtained from a table of function values
When you are asked to find or determine an output or an input value, you should use your
calculator in the following ways:
¥ evaluating an output on the home screen
¥ find a value using the AUTO or ASK features of the table
¥ determine an input using the solver
1.2.1 DETERMINING OUTPUTS
home screen, as discussed in 1.1.7. You can also evaluate functions using the calculatorÕs
TABLE. When you use the table, you can ask for specific output values corresponding to t h e
inputs you enter or generate a list of input values that begin with TblMin and differ by DTbl
and their corresponding outputs.
LetÕs use the TABLE to determine the output of the function v(t) = 3.622(1.093)
Even though you could use any of the function locations, we choose to use Y
the function locations, and enter 3.622(1 .093)^X in location Y
After entering the function v(t) in Y
SETUP menu.
To generate a list of values beginning with an input of
80 with the table values differing by 1, enter 80 in the
TblMin location, 1 in the DTbl location, and choose AUTO
in the Indpnt: and Depend: locations.
Remember that you ÒchooseÓ a particular setting by
positioning the blinking cursor over that setting and
pressing
ENTER
Press
2nd GRAPH
input and output values.
Notice that you can scroll through the table with
, , and/or
The table values may be rounded in the table display.
You can see more of the output by moving to the value
and looking at the bottom of the screen.
Copyright © Houghton Mifflin Company. All rights reserved.
( ) , edit the 7 to 10 by pressing
ENTRY
Function outputs can be determined by evaluating on t h e
1,
.
( ) , and observe the list of
TABLE
.
.
ENTER
1
choose the TABLE
,
Chapter 1
(Sections 1.1.5, 1.1.6)
(End of Section 1.2.2)
(Section 1.1.7)
(Section 1.2.1)
(Section 1.2.2)
t
when t =85.
. Press Y= , clear
1
of the Y= list.
Press
2nd WINDOW
A-11
( ) .
TblSet