Casio CLASSPAD 330 3.04 - Manual (Page 493)

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Drawing Figures
S To draw a function
Example: To draw y ( x ) = x 2 – 1
(1) Tap [Draw], [Function], and then [f( x )].
• This causes the Function dialog box and a soft keyboard to appear.
(2) Input the function.
(3) Tap [OK] to draw it.