Texas Instruments TI-84 Plus, TI-84+SE

158 Appendix A: Tables and Reference Information

where the computation of S and df are dependent on whether the

variances are pooled. If the variances are not pooled:

otherwise:

and Sxp is the pooled variance.

SSx12

---------- Sx22

----------+=

Sx12

---------- Sx22

----------+







n11–

--------------Sx12

----------







n21–

--------------Sx22

----------







--------------------------------------------------------------------------=

Sxp

n11–()Sx12n21–()Sx22

-------------------------------------------------------------------=

-----1

-----Sxp

df n1n22–+=

Contents

Main Important Information USA FCC Information Concerning Radio Frequency Interference About the TI-84 Plus and TI-84 Plus Silver Edition About this book Table of Contents 1 Getting Started..................................................................1 2 Activities..........................................................................47 3 Memory and Variable Management.............................. 79 4 Communication Link....................................................... 99 A Appendix A: Tables and Reference Information.........111 B Appendix B: General Information................................163 Getting Started 1 Getting Started TI-84 Plus keys Turning the TI-84 Plus on and off Automatic Power Down Home screen Note: y and keys y key Note: Interchangeable Faceplates Removing a Faceplate Installing New Faceplates Using the Clock Displaying the Clock Settings Changing the Clock settings Error Messages Turning the Clock On Using the Mode Screen to turn the clock on Using the Catalog to turn the clock on TI-84 Plus menus Page Note: Summary of menus on the TI-84 Plus Editing and deleting Page Using and Note: Using parentheses Note: Storing a value 1 2 --- Page Getting Started 17 Example: Delete the value (L.5) stored to X above by storing 0. Graphing a function Press Result 0 Note: Changing mode settings : The importance of mode settings Setting the graphing window Page Using q Building a table Page Note: Clearing the Y= Editor Using the CATALOG Notes: Performing simple calculations Changing a decimal to a fraction Finding the least common multiple Finding the square root Finding the factorial of numbers Solving trigonometric functions Adding Complex Numbers Using the equation solver Page Entering data into lists Using Using the statistical list editor Plotting data Determine which lists contain your data Note: Tell the TI-84 Plus which lists you want to plot Note: Display the plot Note: Calculating a linear regression Note: Calculating statistical variables Using the MATRIX Editor Creating a new matrix Note: Using matrices to solve systems of equations Page Grouping Page Ungrouping Error messages Resetting defaults WARNING: Installing applications Instructions for Windows Instructions for Macintosh Running applications Quick reference Battery precautions Activities The Quadratic Formula Entering a Calculation Converting to a Fraction Displaying Complex Results Note: Box with Lid Defining a Function Defining a Table of Values Zooming In on the Table Setting the Viewing Window Displaying and Tracing the Graph Zooming In on the Graph Finding the Calculated Maximum Comparing Test Results Using Box Plots Note: Page Graphing Piecewise Functions Graphing Inequalities Page Solving a System of Nonlinear Equations Using a Program to Create the Sierpinski Triangle Graphing Cobweb Attractors :Pt-On(X,Y) :End :StorePic 6 n n Using a Program to Guess the Coefficients Graphing the Unit Circle and Trigonometric Curves Note: Finding the Area between Curves Using Parametric Equations: Ferris Wheel Problem Note: Page Demonstrating the Fundamental Theorem of Calculus Problem 1 ---= x Computing Areas of Regular N-Sided Polygons Page Computing and Graphing Mortgage Payments Note: Page Page Memory and Variable Management Checking Available Memory Available RAM, Archive, and App Slots Displaying the About Screen Displaying the MEMORY MANAGEMENT/DELETE Menu Notes: Deleting Items from Memory Deleting an Item Note: Clearing Entries and List Elements Clear Entries Note: ClrAllLists Note: Archiving and UnArchiving Variables Archiving and UnArchiving Variables Page Page Page Note: Resetting the TI-84 Plus RAM ARCHIVE ALL Menu Displaying the RAM ARCHIVE ALL Menu Resetting RAM Memory Note: Resetting Archive Memory Resetting All Memory Grouping and Ungrouping Variables Grouping Variables Page Page Note: Garbage Collection Garbage Collection Message Responding to the Garbage Collection Message Note: Why Is Garbage Collection Necessary? How Unarchiving a Variable Affects the Process If the MEMORY Screen Shows Enough Free Space The Garbage Collection Process Note: Using the GarbageCollect Command ERR:ARCHIVE FULL Message Page Communication Link Getting Started: Sending Variables TI-84 Plus LINK Page Selecting Items to Send Note: Sending the Selected Items Note: Sending to a TI-84 Plus Silver Edition or TI-84 Plus Note: Sending to a TI-83 Plus or TI-83 Plus Silver Edition Receiving Items Receiving from a TI-84 Plus Silver Edition or TI-84 Plus Receiving from a TI-83 Plus Silver Edition or TI-83 Plus Receiving from a TI-83 Backing Up RAM Memory Note: Memory Backup Complete Error Conditions Note: Insufficient Memory in Receiving Unit Page A Appendix A: Tables and Reference Information Table of Functions and Instructions Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Varia bles User Variables Archive Variables System Variables Statistics Formulas Logistic = +[] -----------------------yi Page Page Page Financial Formulas Page Page Days between Dates Eff CP Nom Y1YB() 4 ------------------------ Y2YB() 4 B Appendix B: General Information Battery Information When to Replace the Batteries Effects of Replacing the Batteries Battery Precautions Replacing the Batteries Note: Important Things You Need to Know About Your TI-84 Plus TI-84 Plus Results ERR:DIM MISMATCH Error ERR:INVALID DIM Error Contrast Feature TI-84 Plus Identification Code Backups In Case of Difficulty Handling a Difficulty Page Error Conditions Page pmt2 <pmt1. expression Page Page CFList nor CFO is 0, or when neither CFList Page Accuracy Information Computational Accuracy Page Function Limits Function Results Texas Instruments Support and Service For general information For technical support For product (hardware) service 180 Appendix B: General Information Texas Instruments (TI) Warranty Information Customers in the U.S. and Canada Only One-Year Limited Warranty for Commercial Electronic Product Australia & New Zealand Customers only Page Index Symbols Numerics A B C D E F G H I K L M N O P Q R S T U V W X Y Z