Zooms

1) ZBox -allows you to draw a box to define the viewing window.
2) Zoom In -magnifies the graph around the cursor.
3) Zoom Out-displays more of the graph around the cursor
4) ZDecimal- sets the change in X and Y to Increments of 0.1 when you use trace
5) ZSquare- Adjusts the viewing window so that X and Y dimensions are equal
6) ZStandard- Sets the standard (default) window variables
7) ZTrig- Sets the built in Trigonometry window variables
8) ZInteger- After you position the cursor and press Enter, sets the change in X and Y to whole number increments
9) Zoom Stat- Sets the variables for currently defined statistical lists
0)Zoom Fit-Fits Y-min and Y-max between X-min and X-max

MODE

Numeric Notation
- Normal
- Sci (scientific)
- Eng (engineering)

Decimal
- Float: lets the number of the decimal place change based on the result (up to 10 digits)
- 0-9: Sets the number of decimal places to a value that you specify

Angle of Measure
- Radian: intercepts angle values as radians
- Degrees: Intercepts angle values as degrees

Type of Graph
- Func (functional): plots functions, where Y is a function of X
- Par (parametric): plots functions were X and Y are functions of T
- Pol (polar): plots functions where r is a function of [n] "theta"
- Seq (sequence): plots sequences

Sequential: draws graphs one at a time
Simul (simultaneous): draws several graphs at one time

Real or Complex mode
- Real: displays real numbers
- a+bi (rectangular complex): displays as 3+2i
- re^"theta"i (polar complex): displays as re^"theta"i

Screen Display
- Full: displays full screen
- Horiz: displays a horizontal split screen
- G-T: displays vertical split screen

Plot/Linear Regression

Plot
Method: Collect/Gather data. Determine which data might be dependent on the other.
ex) hours studied vs. test scores. Test score depends on hours studied.
Dependent Variable (y-axis, L2), Independent Variable (x-axis, L1)



You plot these points on your calculator by pushing STAT, Edit... Under L1 you put the hours studied and under the L2 you put the test score. To see your graph you push GRAPH.
If your graph doesn't appear push Y= and turn on Plot1.

Line of Best Fit (Linear Regression)
After plotting your points you can "see" the line of best fit by pushing:
STAT, CALC, 4:LinReg (ax+b), ENTER, 2nd, 1(L1), "comma", 2nd, 2(L2), "comma", VARS, Y-VARS, 1:Function, 1:Y1, ENTER, ENTER, GRAPH

To see the equation go to Y=