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Casio ClassPad 300 PLUS User Manual

Page 423

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20050501

u To dilate a line segment toward a specified center point

(1) Draw a line segment, and then select it.

(2) Tap [Draw], [Construct], and then [Dilation].

• This highlights the dilation button on the toolbar.

(3) Tap the center of dilation.

• This displays the Dilation dialog box.

(4) Specify the dilation scale factor.

(5) Tap [OK].

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Drawing Figures

Transformation Using a Matrix or Vector (General Transform)

General Transform lets you input a matrix and/or vector to transform a figure. The result of
the transformation is drawn as a separate figure. For example, if you transform line segment
AB, the line segment A’B’ will be drawn.

You can perform the following types of transformations with General Transform.

• Matrix Transformation:

x

-axis/

y

-axis symmetry, rotation, enlargement, reduction, etc.

• Vector Transformation: Vertical and horizontal parallel displacement

k General Transform Example

In this example draw triangle ABC and then draw triangle A’B’C’, which is symmetrical to
ABC about the

x

-axis. Next, we will draw triangle A’’B’’C’’ by performing a parallel

displacement on triangle A’B’C’ of 1 unit along the

x

- and

y

-axis.