Operation Manual

Chapter 8: Draw Instructions 132
You can also choose a color name in the  menu (color sub-menu).
Drawing Circles
Drawing a Circle Directly on a Graph
To draw a circle directly on a displayed graph using the cursor, follow these steps.
1. Select
9:Circle( from the DRAW menu.
2. Press t b to change the color and line style using spinner menus.
3. Place the cursor at the center of the circle you want to draw. Press Í.
4. Move the cursor to a point on the circumference. Press Í to draw the circle on the graph.
Note: This circle is displayed as circular, regardless of the window variable values, because you drew it
directly on the display. In the example above, the Axes is off.
To continue drawing circles, repeat steps 2, 3 and 4. To cancel
Circle(, press ‘.
Drawing a Circle from the Home Screen or a Program
Circle( draws a circle with center (X,Y) and radius. These values can be expressions.
Circle(X,Y,radius[, color#, linestyle#]) )
Note: When you use Circle( on the home screen or from a program, the current window values may
distort the drawn circle. Use
ZSquare (Chapter 3) before drawing the circle to adjust the window
variables and make the circle circular. In the example above, the Axes is on.