HP Prime Graphing Wireless Calculator Uživatelský manuál stáhnout pdf (Strana 232)

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101

triangle and point I. Further, the distance from point I to each new point will be twice the distance to the

original point (since the scale factor is 2).

Tap , tap Transform, and select Dilation.

Tap the point that is to be the center of dilation and press .

Enter the scale factor and press .

Tap the object that is to be dilated and press .

Similarity

Dilates and rotates a geometric object about the same center point.

similarity(point, realk, angle, object)

Example:

similarity(0, 3, angle(0,1,i),point(2,0)) dilates the point at (2,0) by a scale factor of 3 (a

point at (6,0)), then rotates the result 90° counterclockwise to create a point at (0, 6).

Projection

A projection is a mapping of one or more points onto an object such that the line passing through the point

and its image is perpendicular to the object at the image point.

Tap , tap Transform, and select Projection.

Tap the object onto which points are to be projected and press .

Tap the point that is to be projected and press .

Note the new point added to the target object.

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