Casio CLASSPAD 330 3.04 - Manual (Page 490)

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S\ To add a labeled point to an existing line
You can use the following procedure to add a labeled point to an existing line, to a side of an
n-gon, to the periphery of a circle or ellipse, etc.
(1) Tap [Draw] and then [Point].
• This highlights the point button on the toolbar.
(2) Drag the stylus on the screen towards the line where you want to add the labeled point.
• This selects the line, which is indicated by “I”.
8-2-4
Drawing Figures
(3) Drag the stylus to the location on the line where you
want to add a labeled point, and then lift the stylus from
the screen.
S To draw an infinite line
(1) Tap [Draw] and then [Infinite Line].
• This highlights the infinite line button on the toolbar.
(2) Tap two points on the screen through which you want the infinite line to pass.
• You could also tap one point and then drag to the
second point.