Texas Instruments TI-83 Plus Silver Edition Manual

7/18/01 ©1999, 2001 Texas Instruments
TI-83 Plus
Transformation
Graphing
Getting Started
Start Here…
How To…
Install Transformation Graphing
Change Coefficients
Graph
Set Play Types Play Pause Play and Play-Fast
Examples
Exploring a Stat Plot
More Information
Deleting Transformation Graphing
Uninstalling Transformation Graphing
Error Recovery
Customer Support
TI

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Important Information
Texas Instruments makes no warranty, either expressed or
implied, including but not limited to any implied warranties of
merchantability and fitness for a particular purpose, regarding
any programs or book materials and makes such materials
available solely on an “as-is” basis.
In no event shall Texas Instruments be liable to anyone for
special, collateral, incidental, or consequential damages in
connection with or arising out of the purchase or use of these
materials, and the sole and exclusive liability of Texas
Instruments, regardless of the form of action, shall not exceed
the purchase price of this product. Moreover, Texas Instruments
shall not be liable for any claim of any kind whatsoever against
the use of these materials by any other party.
This graphing product application (APP) is licensed. See the
terms of the license agreement.
Copyright © 1999, 2001 Texas Instruments Incorporated.

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Where to Find Installation Instructions
You can find detailed instructions on installing Flash applications
at education.ti.com/guides.

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What is Transformation Graphing?
Transformation Graphing lets you observe the effects of
changing coefficient values without leaving the graph screen.
Transformation Graphing affects only function graphing. Xis the
independent variable and Yis the dependent variable. It is not
available in parametric, polar, or sequence graphing.
Transformation Graphing allows you to manipulate up to four
coefficients on the graph: A, B, C, and D. Any other coefficients
act like constants, using the value in memory.
If you have the demo version
The Transformation Graphing demo version is fully functional.
The only limitation is that the Y= expression must be
Y1=AX2+BX+C. All features can be explored completely. You may
follow the Getting Started and the Activity in this manual without
special adjustments.

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Getting Started: Exploring =AX2+BX+C
Explore the Function Y=AX2+BX+C for Increasing Values
of A and B.
1. Press . If you do not see Transfrm
(or DemoTrns) as an option, you need
to download the Transformation
Graphing application on your
TI-83 Plus.
2. Select Transfrm. The Transformation
Graphing screen appears. Press any
key (except yor ).
(If you do not see this screen, but see a
menu instead, then Transformation
Graphing is already active; select
2:Continue.)
3. In Func mode, press oto display the
Y=editor. Press A¡Ã
BÃCto enter the
expression Y=AX2+BX+C.

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4. If the Transformation Graphing play
type to the left of the Ynfunction does
not look like 3, press |until the cursor
is over the symbol, and then press
Íuntil the correct symbol appears.
This selects Play-Pause as the
Transformation Graphing play type.
5. Press p}to display the
SETTINGS screen. 3on the second line
reflects the Transformation Graphing
play type you selected on the Y=
screen.
Press 1111to define the
starting values for the coefficients and
the increment by which you want to
observe the changing coefficients.
6. Press q6to select 6:ZStandard.
The graph screen is displayed
automatically. The selected Y=function
and the current values of the
coefficients A, B, and Care shown on
the screen.

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7. Press ~to increment the value of Aby
the Step value (1) from 1 to 2. The
graph is redrawn automatically,
showing the effect of increasing the
coefficient of X by 1.
If the coefficient Ais not selected, press
until the =sign for Ais highlighted.
8. Press to highlight the =sign for B.
Press ~several times (pausing briefly
each time as the graph is redrawn) to
observe the effect of increasing the
value of B.

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Installing Transformation Graphing
1. Press .
2. Select Transfrm (or DemoTrns).
3. If the information screen is displayed,
Transformation Graphing has been
activated. Press any key except yor
.
If the TRANSFRM APP screen is
displayed, Transformation Graphing is
already active. Select 2:Continue.
Note
Uninstall does not delete the Transformation Graphing
application, it only deactivates it.

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Uninstalling Transformation Graphing
1. Press .
2. Select Transfrm (or DemoTrns).
3. If the TRANSFRM APP screen is
displayed, Transformation Graphing is
active. Select 1:Uninstall to deactivate
Transformation Graphing.
If the information screen is displayed,
Transformation Graphing was not
active, but has been activated. Press
any key except yor , and then
return to step 1.
Note
Uninstall does not delete the Transformation Graphing
application, it only deactivates it.

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Transformation Graphing Play Types
There are three Transformation Graphing play types, which may
be set independently for each function.
•Play-Pause (3) lets you control which coefficient is changed
and when the graph is plotted.
•Play (1) stores a series of changes as pictures to be
displayed like a slide show. The pictures are displayed in a
continuous loop until you stop them.
•Play-Fast (2) stores a series of changes as pictures to be
displayed like a slide show. The pictures are displayed in a
continuous loop until you stop them. It displays the pictures
at a more rapid rate than Play (1).

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Play Pause
Selecting Play-Pause
You may select Play-Pause in one of two ways:
•To select the Transformation Graphing play type on the Y=
screen, press |until the cursor is over the symbol at the left
of the Ynfunction. Press Íuntil the correct symbol
appears.
Y2is set for Play-Pause.
•To select Play-Pause on the SETTINGS screen, press p
}to display the SETTINGS screen. Press |until the cursor
is over 3, and then press Í.
The selected function is set for
Play-Pause.
Note
Changing the Transformation Graphing play type on the
SETTINGS screen affects only the currently selected function.

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Setting Coefficient Starting Values and Step
To set values for the coefficients, press and enter each value.
The value for Step is used to increment the selected coefficient
on the graph screen each time you press ~or decrement it each
time you press |.
Viewing a Graph with Play-Pause
1. Press
s(or qand select a menu option). The graph
is displayed immediately.
2. Press
|or ~to change to value of the selected coefficient.
3. Press }or to select a different coefficient.

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4. To see the effect of a specific value for a coefficient, simply
select the coefficient, enter in the value, and press Í.

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Play and Play-Fast
Selecting Play or Play-Fast
You may select Play or Play-Fast in one of two ways:
•To select the Transformation Graphing play type on the Y=
screen, press |until the cursor is over the symbol at the left
of the Ynfunction. Press Íuntil the correct symbol
appears (1for Play; 2for Play-Fast).
Y3is set for Play.
Y3is set for Play-Fast.

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•To select Play or Play-Fast on the SETTINGS screen, press
p}to display the SETTINGS screen. Press |or ~
until the cursor is over 1(Play) or 2(Play-Fast), and then
press Í.
The selected function is
set for Play.
The selected function is
set for Play-Fast
Note
Changing the Transformation Graphing play type on the
SETTINGS screen affects only the currently selected function.
Setting Coefficient Starting Values, Max, and Step
To set values for the coefficients, press and enter each value.
The value for Step is used to increment the selected coefficient
between screens in the slide show.

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The Max value is not displayed for Play-Pause, but is displayed
whenever Play or Play-Fast is selected. Max and Step determine
how many screens must be calculated between screens in the
slide show. You may have up to 13 screens in Play or Play-Fast,
depending on the amount of available RAM (about 10K is
required for 13 screens).
If you receive a MEMORY error message, you must either reduce
the value of Max, increase the initial value of the selected
coefficient, or increase the value of Step (assuming positive
values of Max and Step).
Viewing a Graph with Play or Play-Fast
Press sor qand one of the zoom commands
(ZDecimal, ZSquare, ZStandard, ZTrig, ZInteger, or ZoomStat). You
will see a message as the screens are plotted and stored.

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Once the screens have been plotted, they are displayed in a
continuous loop until you stop them.
Pausing the Slide Show
To pause the slide show, press Í. Press Íagain to
resume it.
Leaving the Slide Show
You may leave the slide show in one of two ways:
•Press Íto pause the slide show. Then press the key
you want twice. (The SETTINGS screen is always displayed
first.)
•Press and hold Éto leave the slide show and go to the
SETTINGS screen.
Note
All keys except Íand Éare ineffective while the slide
show is running. You must press Íor press and hold Éto
stop the display.

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Changing Coefficients
You can control coefficient values in several ways:
•Use the ~and |keys to increment and decrement the
coefficient by the value specified for Step on the SETTINGS
screen. (Play-Pause)
•Enter in a new value for a coefficient. (Play-Pause)
•Set up the initial and Step values on the SETTINGS screen.
(Play-Pause)
•Set up the initial, Max, and Step values on the SETTINGS
screen. (Play and Play-Fast)

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TrailOff and TrailOn
The Graph Format screen has an extra setting: TrailOff or
TrailOn.
The default setting, TrailOff, is the same as normal function
graphing.
TrailOn lets you see the effect of changing the value of a
coefficient by leaving a dotted shadow of the previous graphs.
When you select a different coefficient (A, B, C, or D) or cause
the graph to replot, the shadow disappears.

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Transformation Graphing and Normal Function
Graphing
Transformation Graphing allows the same commands and
activities as normal function graphing. However, only one
function may be selected at a time, which affects actions and
parameters in some cases. Some actions are not applicable in
Play or Play-Fast.
Language
Transformation Graphing automatically recognizes if one of the
following languages is installed and displays the prompts and
menus in that language: Danish, Dutch, English (default),
Finnish, French, German, Italian, Norwegian, Portuguese,
Spanish, or Swedish.
Defining a Function
(Chapter 3 in TI-83 Plus manual)
Functions are defined on the Y= screen. There are no
differences except in graph styles and selecting a function. (See
below for details.)