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Casio ClassPad II fx-CP400 User Manual

Page 168

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Chapter 8: Geometry Application

  168

u To replace the current animation with a new one

1. Select the point and curve for the new animation.

2. Tap [Edit], [Animate], and then [Replace Animation].

• This discards the currently set animation and sets up an animation for a new point and curve set. Tap

[Edit], [Animate], and then [Go (once)] to see your new animation.

u To trace a locus of points

Note:

Using trace leaves a trail of points when the animation is run. The

procedure below is a continuation of the procedure under “To add an
animation and run it”.

1. Draw a line segment that connects point A with apex B.

2. Draw the center point of line segment AB.

• Select line segment and then tap [Draw] - [Construct] - [Midpoint].

3. Select the center point of line segment AB (point F) and then tap [Edit] -

[Animate] - [Trace].

4. Tap [Edit], [Animate], and then [Go (once)].

• This draws a line using point F as the locus, that is parallel to and whose

length is half that of side CD of the parallelogram.

0804

To create an animation that traces the locus of specific points

u To edit an animation

Note:

The steps below continue from the procedure under “To trace a locus of

points”.

1. While the animation you want to edit is on the display, tap [Edit], [Animate],

and then [Edit Animations].

• This displays the animation editing window in the lower window. The upper

window contains the animation that we just completed in “To trace a locus
of points”.

2. Edit the animation following the procedure below.

Steps:

This setting specifies how many steps point A takes to move along side CD.
The initial default value is 20, which can be changed to value from 2 to 100.

Animations:

The “A” under “Animations” indicates that point A is the point moved by the
animation. When you are building multiple animations, a list of all applicable points appears here.

Tapping [Remove] deletes the applicable animation.