• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10
  11. 11
    11
  12. 12
    12
  13. 13
    13

Fractals. In order to create a fractal, you will need to be acquainted with complex numbers. Complex numbers on a graph are characterized by the coordinates of (x,y)

Extracts from this document...

Introduction

Ruzeb Chowdhury                                                                         June 09, 2012

Fractals

        Usually when one speaks of fractals to an audience, the audience refers to a piece of art that consists of repeating shapes and self-similar patterning (“same as near as far”). However, they do not realize that fractals were made and recognized due to a mathematical concept that was developed by many people such as Gottfried Leibniz, Georg Cantor, Waclaw Sierpiński, Gaston Julia, and Benoit Mandelbrot. Mandelbrot was the one to coin the term “fractal”, but the other mathematicians paved the way for Mandelbrot’s findings. Also, some people may think that there is just one way to make a fractal, which is by using math. This is not totally true, as there ways to make the same fractal in a different approach, such as by using the L-system.image00.jpg

A fractal created with the Julia set under constant -.74434 - .10772i.

        The mathematics behind fractals, such as the Koch Curve, is rather simple, yet it becomes a complicated, yet ingenious method when referring to the Mandelbrot Set. In order to create a fractal, you will need to be acquainted with complex numbers.  Complex numbers on a graph are characterized by the coordinates of (x,y) in which the x-coordinate is any rational number, whereas the y-coordinate contains an imaginary number, denoted by “i”. An imaginary number is the square root of a negative number. An example of a complex number can be: (5 + 4i).

...read more.

Middle

z2 + z0 ever lands outside of the circle of radius 2 centered at the origin, then this orbit definitely tends to infinity. Therefore, 2i does not exist in the Mandelbrot since it quickly leaves the boundary after only one iteration:

z0 = 0

z1 = 0 + 2i

        Enough of whole numbers, the Mandelbrot Set requires the use of fractions for the values of the real and imaginary parts, or else we’d only be talking about a few points. For example, the iteration of .7 + 6i is not considered a point in the Mandelbrot Set only after three iterations:

z1 = 0.7 + 0.6i

z2 = 0.83 + 1.44i

z3 = -0.6847 + 2.9904i

z3 = 3.06778523531 

Usually, smaller fractions for the complex and imaginary parts tend to stay in the Mandelbrot Set, even after fifty iterations! For example, when iterating .2 + .3i , it stays inside the circle of radius 2:

z1 = 0.2 +0.3i

z2 = 0.15 + 0.42i

z3 = 0.0461 + 0.426i

z4 = 0.02064921 + 0.3392772i

z5 = 0.0853173714338 + 0.314011612302i

z50 = 0.079204221383 + 0.356467487952i

z50 = 0.365160757272 

        In order to create the Mandelbrot Fractal, we just ask the computer to color the pixels black if the value of c is bounded; else we color the pixel white if it goes to infinity. Different colors were determined by the quickness of the equation to go until infinity, thus the presence of blue in the image below.

image01.png

Fractal created by the Mandelbrot Set

        French mathematician Gaston Julia had published her work at the age of 25, yet it was not recognized as an input to the mathematical world until after about sixty years, when computers were able to visualize Julia’s creation.

...read more.

Conclusion

log (self similar pieces)log (magnification factor)

 The dimension of a square is two, and is proven below:

dimension = log (self similar pieces)log (magnification factor)

     = logN2log N

     = 2 log Nlog N = 2

Similarly, to find the dimension of a fractal, we use the same formula. The Sierpińksi Triangle consists of three self-similar pieces under the magnification of two.

Therefore:

dimension=log3log2 1.585

The fractal dimension of the Sierpińksi triangle is approximately 1.58, less than a square yet more than a line. Fractal dimension is the measure of how "complicated" a self-similar figure is and how large it is. The Sierpińksi triangle is more complicated than the Koch Curve (1.26) and the Cantor Dust (.63), thus it is larger than them.

Bibliography

“Creating Fractals: The Mathematics.” Adam Lerer. Angelfire. n.d. Web. 25 May. 2012.

“Escape Criterion.” Professor Michael Frame. classes.yale.edu. Fall 2000. Web. 2 June.

2012.

“Fractal Dimension.” Professor Robert L. Devaney. Boston University. 2 April. 1995.

Web. 4 June. 2012

“Fractals and Fractal Geometry.” Thinkquest.org. Oracle Thinkquest. n.d. Web. 23 May.

2012.

“Introduction to the Mandelbrot Set.” David Dewey. cs.washington.edu. n.d. Web. 22

May. 2012.

 “Julia Set Generator.” www.easyfractalgenerator.com. n.d. Web. 5 June. 2012.

“Julia Sets.” Professor Michael Frame. classes.yale.edu. Fall 2000. Web. 2 June. 2012.

“L-system.” Wikipedia.org. n.d. Web. 30 May. 2012.

“Mandelbrot Calculator.” Gary Rubinstein. MATHE 6500C. 2009. Web. 26 May. 2012.

Mandelbrot, Benoit. The Fractal Geometry of Nature. U.S.A: Macmillan, 1983. Print.

"The Math of Fractals." Coolmath.com. Coolmath.com, Inc., n.d. Web. 22 May.

2012.

 “The Mandelbrot Set.” Professor Robert L. Devaney.Boston University. n.d. Web. 29

May. 2012

“Fractals and the Fractal Dimension.” Vanderbilt.edu. n.d. Web. 9 June. 2012

...read more.

This student written piece of work is one of many that can be found in our AS and A Level Core & Pure Mathematics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Core & Pure Mathematics essays

  1. Marked by a teacher

    The Gradient Function

    5 star(s)

    � - 2x� = 2(x� +3x�h + 3h�x+h�) - 2x� = 2x� + 6x�h + 6h�x +h� - 2x� x + h - x h h = 6x�h + 6h�x +h� = 6x� + 6hx + h� = 6x� + (6)(0x) + 0� = 6x� h I need not explain this any further.

  2. Marked by a teacher

    Estimate a consumption function for the UK economy explaining the economic theory and statistical ...

    3 star(s)

    The first factor is inflation. Inflation will reduce the real income of consumer's wealth. Thus, customer might fell their worse off. Therefore, saving might increase and consumption decrease. So, the inflation factor should add in the consumption function. The following new function is the one has been added the inflation factor: ct=c0+c1yt+c2ct-1+c3?t where ?is the inflation rate.

  1. 2D and 3D Sequences Project Plan of Investigation

    - 12 +1 3. 72 - 12 + 1 4. 72 - 11 5. = 61 Successful Sequence 8: 1. 2(82) - 16 + 1 2. 2(64) - 16 + 1 3. 128 - 16 + 1 4. 128 - 15 5.

  2. Maths - Investigate how many people can be carried in each type of vessel.

    In order to determine 'y', we simply need to use the previous two sets of equations which we had obtained after eliminating 'x' (i.e. equations (iv) and (v)). However, this time - instead of eliminating the 'y', we will now eliminate the 'z' factor.

  1. Three ways of reading The Bloody Chamber.

    A volume of Debretts falling from a shelf would not work equally well. There is a plausible second level reading of The Bloody Chamber which sees the final coda, the return to bourgeois life as a diminution. The mark on the forehead is a reminder that having a kind of mythic significance in ones life is bought at a cost.

  2. Functions. Mappings transform one set of numbers into another set of numbers. We could ...

    For the domain, a vertical asymptote is formed. For the range, a horizontal asymptote is formed. To find the inverse of a quadratic function, swap x and y and complete the square. Algebraic Fractions Simplifying To simplify ==> Look for common factor in the numerator and denominator ==> Sometimes we

  1. Investigate the relationships between the lengths of the 3 sides of the right angled ...

    -eqn4 - 27a + 9b + 2c + d = 84 - eqn3 37a + 7b + c = 96 -eqn5 Equation 3 - Equation 2 I am doing this to eliminate D and form a sixth equation that I will subtract with equation 5.

  2. 2D and 3D Sequences Project

    If we look at the symetrical sides of the pattern and add up the number of squares we achieve a square number. Attempting to Obtain a Formula Through the Use of the Difference Method I will now apply Jean Holderness' difference method to try and find a formula. Pos.in seq.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work