Texas Instruments TI-83 Series Manual
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Texas Instruments TI-83 Series Manual

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Coping with the Basics
In This Chapter
Turning the calculator on and off
Using the keyboard
Using the menus
Setting the mode of the calculator
Using the Catalog
T
he TI-83 and TI-84 graphing calculators are loaded with
many useful features. With them, you can construct and
investigate geometric figures. You can graph and investigate
functions, parametric equations, polar equations, and
sequences. You can use them to analyze statistical data and to
manipulate matrices. You can even use them to calculate
mortgage payments.
But if you've never used a graphing calculator before, you
may at first find it a bit intimidating. After all, it contains
about two dozen menus, many of which contain three or four
submenus. But it's really not that hard to get used to using the
calculator. After you get familiar with what the calculator is
capable of doing, finding the menu that houses the command
you need is quite easy. And you have this book to help you
along the way.
When to Change the Batteries
The convenience of battery power has a traditional downside:
What if the batteries run out of juice at a crucial moment, say
during a final exam? Fortunately, the calculator gives you some
leeway. When your batteries are low, the calculator displays a
Chapter 1

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Summary of Contents for Texas Instruments TI-83 Series

  • Page 1 Chapter 1 Coping with the Basics In This Chapter Turning the calculator on and off Using the keyboard Using the menus Setting the mode of the calculator Using the Catalog he TI-83 and TI-84 graphing calculators are loaded with many useful features. With them, you can construct and investigate geometric figures.

  • Page 2: Turning The Calculator On And Off

    TI-83/84 Plus Graphing Calculators For Dummies, Portable Edition “Your batteries are low” warning message. After you see this message for the first time, the calculator should, according to the manufacturer, continue to function just fine for at least one week. There is one exception: If you attempt to download an application when the batteries are low, the calculator displays a “Batteries are low —...
  • Page 3 Chapter 1: Coping with the Basics The remaining rows contain, among other things, the keys you typically find on a scientific calculator. Keys on the calculator are never pressed simultaneously. In this book, an instruction such as y… indicates that you should first press y and then press ….
  • Page 4 TI-83/84 Plus Graphing Calculators For Dummies, Portable Edition Keys to remember The following keystrokes are Õ: This key is used to exe- invaluable: cute commands and to evaluate expressions. When evaluating yz: This is the equivalent of expressions, it’s the equivalent of the Escape key on a computer.

  • Page 5: Using The Arrow Keys

    Chapter 1: Coping with the Basics Using the Ñ key Ñ is the key you use to enter the variable in the definition of a function, a parametric equation, a polar equation, or a sequence. In Function mode, this key produces the variable X. In Parametric mode it produces the variable T;...

  • Page 6: Editing Entries

    TI-83/84 Plus Graphing Calculators For Dummies, Portable Edition If it’s taking too long for the calculator to graph a function, evaluate an expression, or execute a command, and you want to abort the process, press …. If you’re then confronted with a menu that asks you to select either Quit or Goto, select Quit to abort the process.

  • Page 7: Using Menus

    Chapter 1: Coping with the Basics expression or command, press yÕ. This makes the cal- culator paste a copy of the desired expression or command on the Home screen so you can edit it. Using Menus Most functions and commands you use are found in the menus housed in the calculator —...

  • Page 8: Selecting Menu Items

    TI-83/84 Plus Graphing Calculators For Dummies, Portable Edition To see menu items that don’t appear on-screen, repeatedly press Ü. To get quickly to the bottom of a menu from the top of the menu, press }. Similarly, to quickly get from the bottom to the top, press Ü.
  • Page 9 Chapter 1: Coping with the Basics numbers in the usual numeric fashion that you used in elementary school — provided it can display it using no more than ten digits. If the number requires more than ten digits, the calculator displays it using scientific notation.
  • Page 10 TI-83/84 Plus Graphing Calculators For Dummies, Portable Edition Connected or Dot: In Dot mode, the calculator produces a graph by plotting only the points it calculates. In Connected mode, the cal- culator joins consecutively plotted points with a line. My recommendation is to select the Connected mode because each of the graphing options (Func, Par, Pol, and Seq) allows you to select a graphing style, one of which is the dot style.

  • Page 11: Using The Catalog

    Chapter 1: Coping with the Basics Õ to highlight that item. To enter numbers in the other options, edit the existing number or press ë and use the keypad to enter a new number. When you are finished setting the clock, save your settings by placing the cursor on SAVE and pressing Õ.
  • Page 12 TI-83/84 Plus Graphing Calculators For Dummies, Portable Edition press W because the letter T is written in green above this key. This is illustrated in the second picture in Figure 1-4. 4. Repeatedly press Ü to move the indicator to the desired command or function.

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