Texas Instruments TI-84 Plus TI-84 Plus User Manual
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TI-84Plus

TI-84Plus Silver Edition

© 2004 Texas Instruments Incorporated

Windows and Macintosh are trademarks of their respective owners.

Important Information

Texas Instruments makes no warranty, either express 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.

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USA FCC Information Concerning Radio Frequency

Interference

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference with radio communications. However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you can try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/television technician for help.

Caution: Any changes or modifications to this equipment not expressly approved by Texas Instruments may void your authority to operate the equipment.

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About the TI-84Plus andTI-84Plus Silver Edition

The TI-84Plus Silver Edition is the same as theTI-84Plus except:

it has more memory, and thus more spaces for graphing handheld software applications (Apps).

it has interchangeable faceplates that let you customize the appearance of your TI-84Plus Silver Edition.

Since all the functions of the TI-84Plus Silver Edition and theTI-84Plus are the same, this guidebook can be used for either theTI-84Plus or theTI-84Plus Silver Edition.

The CD included with your TI-84Plus /TI-84Plus Silver Edition package also includes an electronic guidebook, which is a complete reference manual for theTI-84Plus /TI-84Plus Silver Edition. If the CD is not available, you can download a copy of the electronic guidebook from the Texas Instruments web page at:

education.ti.com/guides

The TI-84Plus /TI-84Plus Silver Edition has some graphing handheld software applications (Apps) preinstalled. For information about these Apps, see the electronic documentation files on the Texas Instrument web page at:

education.ti.com/guides

About this book

This guidebook gives a quick overview of each topic, along with keystroke instructions for easy examples. All examples assume that the TI-84Plus is using default settings. For complete information on any topic, see the electronic guidebook on the CD that came with your graphing handheld.

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Table of Contents

 

1

Getting Started..................................................................

1

 

TI-84 Plus keys.................................................................................

1

 

Turning the TI-84 Plus on and off..................................................

2

 

Home screen ...................................................................................

2

 

yandƒkeys ........................................................................

3

 

andy5 .......................................................................

4

 

Entering an expression...................................................................

4

 

Interchangeable Faceplates ...........................................................

5

 

Using the Clock...............................................................................

6

 

TI-84 Plus menus .............................................................................

8

 

Editing and deleting ....................................................................

11

 

Using ¹andÌ.............................................................................

13

 

Using parentheses ........................................................................

14

 

Storing a value..............................................................................

15

 

Graphing a function.....................................................................

17

 

Changing mode settings ..............................................................

18

 

Setting the graphing window .....................................................

21

 

Using q...................................................................................

23

 

Building a table ............................................................................

23

 

Using the CATALOG......................................................................

25

 

Performing simple calculations ...................................................

26

 

Using the equation solver............................................................

28

 

Entering data into lists.................................................................

30

 

Plotting data.................................................................................

32

 

Calculating a linear regression ....................................................

35

 

Calculating statistical variables....................................................

36

 

Using the MATRIX Editor .............................................................

37

 

Grouping.......................................................................................

39

 

Ungrouping ..................................................................................

41

 

Error messages..............................................................................

42

 

Resetting defaults ........................................................................

43

 

Installing applications ..................................................................

44

 

Running applications ...................................................................

45

 

Quick reference ...........................................................................

46

 

Battery precautions ......................................................................

46

2

Activities ..........................................................................

47

 

The Quadratic Formula ................................................................

47

 

Box with Lid ..................................................................................

50

 

Comparing Test Results Using Box Plots......................................

57

 

Graphing Piecewise Functions .....................................................

59

 

Graphing Inequalities...................................................................

60

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Solving a System of Nonlinear Equations....................................

62

Using a Program to Create the Sierpinski Triangle.....................

63

Graphing Cobweb Attractors.......................................................

64

Using a Program to Guess the Coefficients.................................

65

Graphing the Unit Circle and Trigonometric Curves ..................

66

Finding the Area between Curves ...............................................

67

Using Parametric Equations: Ferris Wheel Problem ...................

68

Demonstrating the Fundamental Theorem of Calculus .............

71

Computing Areas of Regular N-Sided Polygons .........................

73

Computing and Graphing Mortgage Payments .........................

75

3 Memory and Variable Management ..............................

79

Checking Available Memory ........................................................

79

Deleting Items from Memory.......................................................

81

Clearing Entries and List Elements...............................................

82

Archiving and UnArchiving Variables..........................................

83

Resetting the TI-84 Plus ................................................................

87

Grouping and Ungrouping Variables ..........................................

90

Garbage Collection .......................................................................

93

ERR:ARCHIVE FULL Message ........................................................

97

4 Communication Link.......................................................

99

Getting Started: Sending Variables .............................................

99

TI-84 Plus LINK.............................................................................

100

Selecting Items to Send ..............................................................

102

Receiving Items ...........................................................................

106

Backing Up RAM Memory ..........................................................

107

Error Conditions..........................................................................

108

A Appendix A: Tables and Reference Information.........

111

Table of Functions and Instructions...........................................

111

Variables......................................................................................

154

Statistics Formulas.......................................................................

155

Financial Formulas ......................................................................

159

B Appendix B: General Information................................

163

Battery Information....................................................................

163

Important Things You Need to Know About Your TI-84 Plus ..

165

In Case of Difficulty ....................................................................

167

Error Conditions..........................................................................

169

Accuracy Information .................................................................

176

Texas Instruments (TI) Support and Service...............................

179

Texas Instruments (TI) Warranty Information ...........................

180

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