Mathematics 3DC3 ASSIGNMENT 5
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Mathematics 3DC3
ASSIGNMENT 5
Due Wednesday, April 12, 2023 by 11:50pm on Crowdmark.
1. Given z = 4 + 3i, find the square root of z in the form rei9 and then in the form u + iv where u, v e R. Show your calculations. Do not use a calculator or computer. For example, you should find θ in the form of the composition of trig and inverse trig functions. Leave it in that form. Do not find its decimal expansion.
2. Assume that f : C → C.
(a) Find the period 2 points of f (z) = z2 - 1 and determine if they are attracting or repelling. (b) Find the fixed points of f (z) = z2 + i and determine if they are attracting or repelling.
3. Consider the Cantor middle-ninths set, K9 on [0, 1] obtained by first removing the middle ninth ( , ), and then removing the middle-ninth open interval from each of the remaining intervals, repeatedly. Compute the fractal dimension of K9 .
4. Start with a square. Break the square into nine equal-sized subsquares. Then remove the open middle subsquare. This leaves behind eight equal-sized subsquares. Then repeat this process: break each subsquare into nine equal-sized subsquares and then remove the open middle sub- square. Continuing this process infinitely often yields the Sierpinski carpet. See Figure 1Compute the fractal dimensions of the set obtained.
5. Reproduce the graph of a fractal in Figure 2 that is also shown in Figure 14.18(a) on page 197 of the textbook. Generated it as a planar iterated function system using XPPAUT or other appropriate software. State the fixed points and the contraction factor that you used and find the fractal dimension..
Figure 2: Fractal on page 197 (a) of the text book.
2023-04-10