Math Plane 

The following project will help a user become more familiar with graphing polar functions, sketching geometry parts, using text, color settings, and more.

Project:

Create a flower (using polar functions) with the message "Happy Valentine's Day!"

Step-by-Step Instructions and Illustrations:

On/Home

1: New Document

2: Add Graphs

(grid appears)

Make a Flower

Menu

3: Graph entry/edit

4: Polar

Input 3.5

"Trig"   (select Cos)

6

"Ctrl"  "Catalog"  (select theta)

Enter

(the flower appears)

_______________________________________________

To remove the text:

Place cursor over the graphed function

"Ctrl"  "Menu"

2: hide

(equation text disappears)

_______________________________________________

Change Color and Thickness

Move cursor over the flower

"Ctrl" "Menu"

3: Attributes

(change 'line weight' from thin to medium (using right arrow on the keypad))

Enter

Flower is thicker

"Ctrl" "Menu"

3: Attributes

B: Color

Line Color  

(change line color to red (using keypad arrows)

Enter

Make the flower's stem

"Menu"

8: Geometry

1: Points and Lines

5: Segment

Place cursor over middle of flower (press keypad to establish one endpoint)

Move cursor down and to the left (press keypad to establish other endpoint)

Line segment appears

Return to menu

Move cursor over segment

"Ctrl" "Menu"

3: Attributes

Change line weight to medium

"Ctrl" "Menu"

3: Attributes

B: Color

1: line color  (select green)

Enter

Optional:  Add Valentine's Wish!

"Menu"

1: Actions

7: Text

Place cursor where you want the text to appear

Press the keypad

(writing cursor appear)

"Happy (space key) Valentine"

Press ?!> key in lower right part of calculator

(select ')

"s day"

Press ?!> key again

(select !)

Enter

Save the Image

1: File

5: Save As

"Valentine"

Keys Used in this Project:

Graphing Polar Function:

Changing Attributes of Graph:

Geometry sketches:

Adding Text to Graph: