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Unformatted text preview: es of (a) has the same orientation as (a), so some reflections or rotations are involved. For piece A, rotation by π achieves the right orientation, but places that copy in quadrant III. In order to place the rotated copy in the right position, translate by e = f = 1/2. The orientation of B is obtained be reflecting across the y -axis, or by a rotation of π/2. This places the copy in quadrant II, so e = 1 is needed to position the piece correctly. For C , reflect across the x-axis or rotate by −π/2, and translate by f = 1. This fractal is produced by IFS 1 and of course by several others. Note that the orientation of (a) also can be achieved by a rotation through π/2 and a reflection. None of the three pieces of (b) has the same orientation as (b). Part A is reflected across the y -axis, then rotated by π/2, placing it in quadrant III, so e = f = 1/2 places this copy in the right location. Rotating and reflecting a paper copy of the shape may help develop visual intuition about these opera...
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This document was uploaded on 02/14/2014 for the course MATH 290B at Yale.

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