Casio CLASSPAD 330 3.04 - Manual (Page 354)

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Example 2: To graph a parametric equation
S ClassPad Operation
(1) In the 3D Graph application, make the 3D Graph Editor window active.
(2) Tap to specify input of a parametric equation.
(3) Tap line Xst1, and then input sin(t) × cos(s).
 ; .3QR AQ
(4) Press .
(5) In line Yst1 input cos(t) × cos(s).
 ; AR AQ
(6) Press .
(7) In line Zst1 input sin(s).
 ; QQ
(8) Press .
(9) Tap  to graph the parametric equation.
5-3-4
Drawing a 3D Graph