Example: plotting a circle
Plot the circle, x 2+ y 2 = 9. First rearrange it to read
y= ±
9 – x2 .
To plot both the positive and negative y values, you need to define two equations as follows:
y= 
9 – x2 and y = 
9
1.In the Function aplet, specify the functions.
Select
Function 
9
9
2. Reset the graph setup to the default settings.
CLEAR
3.Plot the two functions and hide the menu so that you can see all the circle.
4.Reset the numeric setup to the default settings.
CLEAR
Aplets and their views |