Texas Instruments Titanium TI-89 Manuel

TI-89 / TI-92 Plus

Calculus Tools

Getting Started

What is the Calculus Tools Application?

Before You Begin

Starting the Calculus Tools Application

Calculus Tools Menus

F1:Tools F4:Seq

F2:Deriv F5:Vector

F3:Integ F6:Advanced

More Information

Calculus Tools Application Functions

TI-89 / TI-92 Plus Calculus Tools Page 2

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

any applicable purchase price of this item or material. Moreover,

Texas Instruments shall not be liable for any claim of any kind

whatsoever against the use of these materials by any other

party.

Graphing product applications (Apps) are licensed. See the

terms of thelicense agreementfor this product.

TI-GRAPH LINK is a trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

TI-89 / TI-92 Plus Calculus Tools Page 3

What is the Calculus Tools Application?

The Calculus Tools application (App) is a Concept software

application for the TI-89 / TI-92 Plus. Concept software

applications are calculator software application prototypes that

demonstrate a new concept area.

The Calculus Tools App extends the built-in power of your

TI-89 / TI-92 Plus by providing more specialized functionality.

Use the Calculus Tools App to investigate applications of

differentiation; compare numerical integration techniques; and

explore sequences, series, vector calculus, Fourier series, and

more.

The Calculus Tools App is based on programs written or

evaluated by CAS (Computer Algebra System) experts and

educators Bernhard Kutzler, Bhuvanesh Bhatt, David R.

Stoutemyer, Josef Böhm, Ray Barton, Ruth Dover, and

Wolfgang Pröpper. We appreciate their contributions and

evaluations.

Additional documentation for many of the Calculus Tools App

features can be found at series.bk-teachware.com. Other

teaching and learning materials written for the TI-89 and

TI-92 Plus are also available at the Web site, including Exploring

Integration with the TI-89/92/92+ by Josef Böhm and Wolfgang

Pröpper.

TI-89 / TI-92 Plus Calculus Tools Page 4

Before You Begin

Concept applications are shared with our customers, educators,

and students before product definition and testing is complete.

These applications may contain software imperfections and/or

incomplete coding areas. They are "alpha" software versions.

TI invites feedback from teachers and students concerning the

functionality and educational value of the Calculus Tools App.

Please send your comments and questions to

[email protected].

Mode settings

The Calculus Tools App requires specific mode settings to run

correctly. If you try to access the application with incorrect mode

settings, this error dialog box will appear:

TI-89 / TI-92 Plus Calculus Tools Page 5

Before starting the Calculus Tools App, set modes to the

required values as follows:

1. From the Home screen, press 3to display the MODE

dialog box.

2. Ensure that the following modes are set as indicated:

Mode

Setting

Graph

FUNCTION

Display Digits

FLOAT or FLOAT # (1 -12)

Angle

RADIAN

Split Screen

FULL

Exact/Approx

AUTO or EXACT

Base

DEC

Language

ENGLISH

3. Press

¸. The Home screen displays.

MEMORY and VAR-LINK screens unavailable

The MEMORY and VAR-LINK screens, accessed by the 2¯

and 2°keys, are unavailable for the Calculus Tools App.

TI-89 dialog boxes

The TI-89 Calculus Tools App dialog boxes default to alpha-lock.

Press jto turn alpha-lock off before entering numbers.

TI-89 / TI-92 Plus Calculus Tools Page 6

Using variables from the Main folder

Using variables from the Main folder places those stored values

in the Calculus Tools App functions. The Calculus Tools App,

however, clears the following types of variables for specified

functions. As a result, the data stored in these variables is lost.

Menu option

Variable defined as …

Independent var

1 and 2;

4-7

Dependent var

Angle Parameter

Index var

Coordinate variables

All

Integration variables

5-8

Var n

2 and 3

All

Viewing answers in split screen

The Calculus Tools App uses a split screen view to display the

numerical and graphical representations of selected solutions.

•For answers that are partially hidden when viewed in a split

screen, press Nto view the answer in full screen.

•For answers that are too long to be viewed in a full screen,

use the Display Answer option.

•You cannot switch back and forth between the split screen

portions.

TI-89 / TI-92 Plus Calculus Tools Page 7

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Access the Calculus Tools App menus using the F1 through F6

function keys. F1 menu options let you change the configuration

of what you see on the screen, such as viewing the complete

answer or data entered as a string, changing split screen

settings, and restoring window defaults.

F2 through F6 menu options let you access calculus operations

and are organized under the broad categories of derivatives,

integrals, sequences, vectors, and advanced functions.

Most F2 through F6 options access a problem-entry dialog box

that includes an example problem to help you get started. Work

through the example problem, or replace it as desired.

Dialog boxes for most F2 through F6 menu options revert to

default values after data is entered. Dialog boxes for the F3

menu options, however, display the values entered last.

This is the problem-entry dialog box for 1:Tangent Line.

TI-89 / TI-92 Plus Calculus Tools Page 8

F1:Tools

F1 1:Display ANSWER

Lets you view an answer that is too long to fit on the screen.

(Answers are displayed as a string.)

Tip

You can also go to the Home screen, type answer, and

press ¸. Scroll to see the complete answer displayed

in Pretty Print.

TI-89 / TI-92 Plus Calculus Tools Page 9

F1 2:Display ENTERED

Lets you view executed commands or functions as a string,

including the Calculus Tools App functions and operations

entered from the problem-entry dialog box.

Tip

To run a Calculus Tools App function from the Home

screen, type entered and press ¸. The last command

(function and instructions) executed appears.

Be sure to remove the quotes from the string before

executing the command.

TI-89 / TI-92 Plus Calculus Tools Page 10

F1 3:Change Split Screen

Lets you choose between left-right (default) and top-bottom

split screens.

The TI-92 Plus lets you change the ratio of the split screen

views.

•1:1 displays the answer and graph views at the same size.

•1:2 displays the answer view at half the size of the graph

view.

•2:1 displays the answer view at twice the size of the graph

view.

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