Casio FXCP400 uTo rotate a line segment, uTo dilate a line segment toward a specified center point, uTo transform a triangle using a matrix or vector (general transform)

uTo rotate a line segment

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

2.Tap [Draw], [Construct], and then [Rotation].

•This highlights F on the toolbar.

3.Tap the screen once to select the center of rotation.

•This displays the Rotation dialog box.

4.Specify the angle of rotation in degrees, and then tap [OK].

uTo 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 2 on the toolbar.

3.Tap the center of dilation.

•This displays the Dilation dialog box.

4.Specify the dilation scale factor, and then tap [OK].

uTo transform a triangle using a matrix or vector (general transform)

1.Tap q to turn on coordinate display in the Geometry window.

2.Draw triangle ABC, and then select its three sides.

3.Tap [Draw], [Construct], and then [General Transform]. This displays the Transform dialog box.

4.Enter the matrix for the transform.

•In this example, let’s input [[1, 0], [0, −1]].

5.Tap [OK]. This draws triangle A’B’C’, which is symmetrical to triangle ABC about the x-axis.

6.Tap anywhere outside of the triangles to deselect the currently selected triangle. Next, select triangle A’B’C’.

7.Tap [Draw], [Construct], and then [General Transform].

8.Enter the vector to perform parallel displacement.

•In this example, let’s input [1, 1].

Chapter 8: Geometry Application 160