The TI-83 Calculator
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Transcript of The TI-83 Calculator
Outline of the Tutorial
The basic TI-83 keys The home screen and PEMDAS Important special keys Discrete functions: lists and scatter plots Continuous functions: equations and
graphs Modeling discrete data Questions and answers
Basic TI-83 Keys
On Multifunction keys Screen brightness Negative vs. subtract
(-) -
Arithmetic operations
Clear vs. Quit
The Home Screen and PEMDAS It’s a calculator!
6 + 3 * 4 = 18 It remembers stuff!
ENTRY (2nd ENTER)ANS (2nd (-)) STO
It changes stuff!DEL INS (2nd DEL)CLEAR
The Home Screen and PEMDAS
PEMDAS rules!Parentheses
Exponents
Multiply
Divide
Add
Subtract
The Home Screen and PEMDAS PEMDAS rules!
ParenthesesExponentsMultiplyDivideAddSubtract
Parentheses are very, very, very, very, very important!!!
Important Special Keys ^ (exponentiation) x2 (squaring) x -1 (multiplicative
inverse) (pi) e (engineer’s constant) ex (power of e) (cursor keys) (square root)
Discrete Functions: Lists
Standard lists: L1, L2, etc Display like this: {4 -7 3 5} Whoops! ERR: INVALID DIM List Editor: STAT | EDIT Adding & deleting numbers in lists Don’t mess with the list names! But when you do: STAT | SetUpEditor
Discrete Functions: Scatter Plots
Use the STAT Editor to put the “x” and “y” data into two lists (L1 and L2, usually)
Press STAT PLOT (2nd Y=) Choose a plot (usually #1) to turn on;
choose the first type; make sure it specifies the correct lists (L1 and L2, usually); choose the first mark
Make sure the other plots are turned off Press ZOOM, then press 9 (ZoomStat)
Discrete Functions: Scatter Plots
Use WINDOW to adjust the horizontal and vertical extents
Use TRACE to turn on the blinking spider With TRACE turned on, use the and
keys to jump the spider from data point to data point.
Use QUIT (2nd MODE) to get back to the Home screen
Continuous Functions: Equation
Press Y= to access the equation editor Press to toggle off any active plots Choose which slot (Y1, Y2, etc.) to use Turn off other equations by using the key
to move the cursor over the = sign, then press the ENTER key (only active equations with their = sign in bold will be graphed)
Continuous Functions: Table
Use TBLSET (2nd WINDOW) to prepare a table• Set a starting value for the “x” and an
increment value• Set “Indpnt” and “Depend” to AUTO
Press TABLE First column is for “x”, other column(s) for any
active equations Use and to scroll up and down in the table
Continuous Functions: Table
-- OR –
If you want to only see the results (“y”) for several specific values of “x”, then
Use TBLSET and specify ASK (instead of AUTO) for the “Indpnt”
Leave everything else the same Press TABLE Key in your specific “x” values in the first column
Continuous Functions: Graph
If the graph isn’t shown when you press the GRAPH key, then
Press WINDOW and specify appropriate values for XMIN, XMAX
Press ZOOM then 0 (ZoomFit) and the TI-83 will choose appropriate values for YMIN and YMAX
Modeling Discrete Data Put data into lists L1 and L2,
then display the scatter plot with ZoomStat
Press STAT then and choose appropriate type of model (LinReg, QuadReg, etc.) then append the equation name Y1 (press VARS then then 1 and 1)
Press GRAPH