The TI83 plus Graphing Calculator

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The TI-83 (plus)Graphing Calculator
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Introduction
TI 83 Plus Calculator

• We will look at various properties and settings
  of the graphing calculator.
• And we will look at how to change those settings.

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Turning the calculator on and off.
Ti-83 (plus) Graphing Calculator

• Press the on button to turn it on and second
  off to turn it off.

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Home Screen

• The home screen is where calculations are
  performed.
• It is also the starting point to change settings.
• Second quit always brings you back to the home
  screen.

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Delete Key

• The delete key deletes one character at a time.
• Insert (second DEL) allows you to insert
  characters without deleting them.

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Clear Key

• The Clear key erases a line or the entire Home
  Screen if pushed a second time.

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Enter Key

• This key will carry out any operations that were
  typed on the screen.

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Entry Key

• Entry key (second ENTER) allows you to display
  what was entered previously without retyping.

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Ans Key
(second -)

• This key will repeat the answer without retyping
  it.

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Arrow Keys

• Arrow keys move the cursor left, right, up and
  down.
• When used with the second key, the up and down
  arrows darken or lighten the screen

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Alpha Key
HELLO WORLD

• When used in conjunction with other keys, letters
  are printed out on the screen. The letters are
  the green ones on the top-right of each key.

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Mode Key

• The mode key changes the way the results of
  calculations are displayed.

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Math Key

• The math key will perform functions that are not
  displayed on the main keypad.

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Y key

• This is where equations are entered that we would
  like to have plotted.
• We usually Graph the functions.

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X, T, q , n

• Used to to type the variable x.
• Ex. Y1 2 x - 6

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Minus and Negative

• The minus sign is used for calculations.
• Ex. Y1 2x 6
• The negative sign is used to indicate the sign of
  the number
• Ex. Y2 - .5x 4

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Window

• Determines the size of the graphing screen.
• The default setting is 10 by 10.

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A BetterWindow

• A better setting for most graphs is 9.4 for x and
  6.2 for y.
• This setting makes the graph easier to read.

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The Graph Key

• This is the key we use to see the graph of the
  equations or points that we have entered.

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Trace Key

• The trace key allows us to trace the curve on a
  graph.
• Use the arrow keys to move the cursor.

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Trace

• Use the up and down arrow keys to switch between
  functions.

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Zoom Key

• Zoom settings allow us to change the view of a
  graph by zooming in or out.
• It can also allow us to zoom in on a portion of
  a graph.

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Calculate Key

• Second trace gives us the Calculate key which
  allows us to determine various values on a graph.

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Format Key

• Second ZOOM gives us the Format key which
  allows us to change the look of the graph.

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Stat Key

• The Stat Key is used to input statistical data.
• The Stat Key accesses lists similar to columns on
  a spreadsheet.
• Pressing 1Edit brings us to the lists.

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Edit Lists

• Lists allow us to input sets of data and then
  graph the data and analyze the data.

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Stats Plot

• The stats plot key allows us to choose one of
  three graphs to plot with the data in the lists.

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Plot Menu

• The plot menu allows us to turn on the data
  points and determine the type of graph to plot.

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The End
(for now)