Characteristics Of Fractals And Fractal Sizes Engineering Essay

Characteristics Of Fractals And Fractal Sizes Engineering Essay

According to Benoit B. Mandelbrot, fractal is known as that object or composition that consists of fragments with variable orientation and size but of similar appearance. This feature provides fractal some specialized geometric properties the length and the relationship between surface and volume. These unique properties do need other s different mathematical equipment to explain the normal characteristics. In our body there happen to be structures with fractal geometry, such as vascular system, the bronchial ramifications, the neural network, the arrangement of the glands, etc. The need for this fractal geometry in the body is to improve the role of systems because in a tiny space with the most significant area. Since there will be structures with fractal geometry we deduce that needs to be practical phenomena with fractal qualities to power these phenomena possess frequently repeating patterns at unique timescales. These phenomena can be characterized with the utilization of mathematical tools of fractal geometry.

Niels Fabian Helge von Koch said, “Fractal theory can be considered a valid and valuable tool for studying powerful phenomena in the human body or in mother nature and allows a strategy more commensurate with the complexity and nonlinearity existing in these procedures”. The fractal dimension is normally a mathematical index that people calculate and that allows us to quantify the features of fractal items or phenomena. This index can be calculated in several ways. Among these means of calculating fractal dimension is the Hurst exponent.

The idea of dimension that people use is usually the classical Euclidean, is definitely that one dimension is definitely a line, form a flat two-dimensional and three-dimensional object web form a volume.

However, an irregular series will form a surface area and a area bends when it becomes a volume, as we can, starting a one-dimensional object, moving the same object in three measurements. Many normal structures have these qualities so that, geometrically, these structures may possess a non integer dimension between 2 and 3.

Thus the fractal dimension can be an index that allows us to quantify the geometric houses of items with fractal geometry. The phenomena with fractal patterns could be represented by line graphs, and these graphics can measure their fractal dimension and thus to quantify the complexity of chaotic dynamics.

Regarding the relationship between fractals and chaos, we could truly say that fractals will be the graphic representation of chaos. Delving a lttle bit about them and predicated on the concepts of Carlos Sabino we could say that the partnership between chaos and fractals is usually that fractals happen to be geometric figures with a certain pattern that is repeated endlessly as a multiple scales and if the close look reveals that pattern is situated in the components, and parts of its factors, and component elements of its components, etc to infinity. This we are able to see if we can observe the fractal at distinct scales smaller and smaller sized.

Fractals of which is said never to have full dimension signify graphically that chaotic equations could be solved. Fractals show us that points of a given mathematical space collapsed the chaotic alternatives of our equation. The most curious part of this is that both the equations and fractals could be constructed with elements that people have all observed in our past academia, however the results obtained can become an incredibly high complexity. This could be considered a means of life…

Fractal Characteristics

In broad terms we are able to define a fractal as a geometric number with a very complex and detailed framework at all scales. Currently in the nineteenth century many figures were designed with these characteristics but weren’t considered beyond straightforward mathematical curiosities and rarities. Nevertheless, in the seventies of last century, their research is closely associated with development studies on chaos.

As noted above, the fractals are simply the graphical representation of chaos, but likewise have several characteristics that afterward we will attempt to enumerate. First, we must consider that they are still fractal geometric figures, but do not meet its definition and it is impossible through traditional concepts and methods set up since Euclid. However, the above statement is very far from becoming rare or anomalous figures, as a glance all around us can perceive having less Euclidean forms ideal, a feeling which will increase tremendously if we get in nature. In fact, we are surprised a lot when we stumble across, for example, with a spherical natural stone. Consequently, while definitely trying to apply to reality, Euclidean shapes (circles, squares, cubes …) happen to be limited to the discipline of our mind and the natural mathematical abstraction. On the other hand, as we shall see, fractals will be widespread.

Like when we speak of chaos, the most significant houses of fractals and which is particularly striking may be the fact that hails from some initial circumstances or very basic guidelines that will lead to extremely complex shapes, seemingly diabolical. A clear example is the Cantor set, since it originates simply portion of a brand segment, we divide it into three parts and remove the core and so forth.

Another key characteristic of the idea of fractal self-similarity is… This idea in a broader impression and philosophy has got attracted since the start of man’s humanity. Jonathan Swift partly reflected in his book Gulliver’s Travels when he conceived the thought of the existence of small guys, the midgets, and giants, all with equivalent morphology but a quite different level. Of course, this is attractive and even romantic, but rejects the science for some time. However, the advances of the hundred years that unveiled some resemblance of an atom with electrons orbiting around the nucleus and the solar system with the Sun and its planets rehabilitated to some extent the concept. In this case of fractals, can be regarded as a fractal object each time we change the level, shows a apparent resemblance to the previous image. Therefore, we are able to define the self-similarity as symmetry within a level, basically fractals are recurrent.

This is obvious in figures like the Koch curve, in which each extension results within an exact copy of the picture above. But to illustrate in an over-all way, we can start to see the coastline of European countries. In principle, we may consider European countries as a peninsula of Asia Furthermore, within European countries there are large peninsulas and the Balkans and if we reduce the scale, we found different small and the Peloponnese peninsula and we are able to continue to differentiate between incoming define scalene triangle and outgoing phone calls between the grains sand from the shore.

However, this dissertation editor self-similarity should not be confused with an absolute identity between scales, for example, following the previous example, is not that smaller peninsulas have a means exactly just like the majors. Rather, what this idea implies the presence of an infinite complexity of fractal numbers since, presented its recurrence, we will be extending its image again and again to infinity without the looks of a totally defined. In fact, these extensions will be revealing an extremely complex network and apparently inexplicable. For example, we take a seemingly smooth surface but if we lengthen it, the microscope will show hillocks and valleys which will be more abrupt increases as we use extra.

But this discovery prospects us to a far more difficult question, what is the size of a fractal? This same concern was asked in his article Mandelbrot How long is the coast of Britain? Where he proposes the idea of fractal dimension. According to Euclid’s geometry, we move in a three-dimensional concerning place a point on the plane we are looking for three coordinates (elevation, width and depth). Likewise, a plane possesses two dimensions, the straight one and stage zero. However, if we take, for instance, the Koch curve is definitely assumed to participate in a one-dimensional world, we will see as their length varies depending on the ruler that we use and, therefore, it is impossible to calculate really. Clearly, nor is it a plane because as its name suggests is certainly a curve as it is at the plane. Consequently, it is deemed that its size should be

halfway between one and two.

This approach may seem to be a simple mathematical juggling, since this product the size of the machine of measure and, eventually, of the relativity of the reference level of the observer escapes hands. However, it is extremely useful because, as proven in the following pages could be calculated and, consequently, serves to balance qualities of fractal items and their amount of ruggedness, discontinuity or irregularity. This also implies that it is considered that amount of irregularity is regular at different scales, which includes been shown many times appearing incredibly standard and irregular habits of behavior in the entire disorder.


As I mentioned previously, we defined the concept of fractal dimension as the one which will not fit, traditionally considered since the time of Euclid: size 0, item; dimension 1, the line, and so on. … But this concept is not only theoretical but can be calculated as we will demonstrate below. Anyway, we ought to not forget that people start with a subjective idea, as it is to see and quantify the fractal occupies the space where you are.

If we have a physique whose fractal dimension is usually between one and two just as, for instance, the coastline, the consequence of its length will depend on the distance of the ruler we make use of, for example the unit of measurement. Therefore, if we get this unit to be infinitely tiny we are able to measure with great accuracy.Now, predicated on this simple idea, it will be easier to understand the next mathematical development:

Denote a entire metric space and (X, d), where is usually a nonempty small subset of X. whereas have B (x,) as areas closed to radio and with middle at a spot xX.

We establish an integer, N (A,) that is the least necessary number of areas closed to radio we need to cover all A.. This might be:

N (A,) = The tiniest positive integer so that AГЊ Г€Mn=1 B(xn, e) For a couple of distinct points (xn, 1, 2, 3, …, M). To learn that this number exists, surround all the factors x A with an area open to radio > 0 to go over A with joint open. Since A is small, this cover has a finite sub cover, which can be an integer, which call up M ‘. If we close these areas, we get yourself a cover M ‘of shut mats.

We phone C the group of addresses of A with no more than M ‘areas closed to radio. Consequently, C has at least one item. Right now, let’s f:C Г 1, 2, 3,&,M as f (c) which is equal to the amount of areas on deck c C. Then, f(c): cГЋC is a finite set of positive integers. Therefore, this set will contain a smaller number, N (A good,).

Intuitive idea behind fractal dimension, predicated on the assumption a has a fractal dimension D if N(A, e) В» Ce -D where C can be a positive constant. Interpret”В» in order that f ( ) and g () will be real functions of actual positive variable. After that, f(e) В» g(e) Means that .

Solving for D we get:

Given that time tends to zero, we get the term also tends to zero we arrive at the following definition:

Be AГЋH(X), and (X, d) is certainly a metric space. For each e>0 allow N (A, e) And lower number of region closed to radio?> 0 had a need to cover A. If:

Exists, then D may be the fractal dimension of A good. Likewise denoted as D = D (A) and reads “A offers fractal dimension D”


We can recreate this collection a simple way: we take a brand and divide it into three equal segments, eliminating the middle and changed by two segments of a size add up to one third of the initial line thus obtaining four segments, this is continued to infinity.








1 / 3



1 / 9



K = number of interactions required

E = size measuring instrument

N = Number of times used E

Its size is definitely calculated using the following formula:

And that leads to:

Thus discover that the dimension of the Koch curve has a dimension that is between the 1st and the 2nd and is 1.2618.

The main & most regarded representative of fractals may be the Mandelbrot set. For most experts it is the most complex object of most sciences. It is amazing to see its infinite complexity, which is obviously beyond description. And this complexity is multiplied at every scale clusters appear endless, peninsulas, islands really are not, spirals, etc. No matter how scaling up or how many times you share with the zoom press button, the display will appear more and more statistics infinitely complicated. Of training course it appears like a diabolical invention capable of driving the sanest.

The Mandelbrot set is a series of complex numbers that satisfy a particular mathematical property. Each issue is composed of a real and an imaginary part represented by we, which is equal to the square root of -1, the following: 2 + 3i. So take a quantity and either C squared. We add the quantity obtained C and back again to become squared and continue over and over again with the same process: z z2 + C.

Applications of Fractals

Although they may appear simple figures created to entertain mathematicians, there are various applications of fractals, both theoretically and pretty much. Given the broad scope of its request field, in that case we will limit to list the most striking and, as they say, which are more magnificent.

Since then, its program in the field of abstract science has been excellent. Among its most instant applications may be the study of solutions of devices of equations over the second degree. Actually, early in the study of fractals, John Hubbard, American mathematician, in a plane signify the way the Newton way for solving equations, network marketing leads from several starting points for each of the solutions. Previously it had been thought that all solution could have a basin of attraction that would divide the map in several places and points which lead to the solution. However, by computer system scanning and assigning a color to each watershed, Hubbard discovered that the boundaries of the parts of the plane weren’t well defined in any way. Within these limits was a color factors into other things of color and as the grid of quantities was more complex was going to expand revealing the border. In fact, could be regarded as there was no such border.

Although there are many applications in areas simply because different as physics and seismology, since that time the area where more applications have already been within image processing. In fact, rather than inputs, should speak of a revolution. Michael Barnsley was the pioneer in the treating pictures from its so-known as fractal transformation. It is the opposite process to the forming of a fractal, for example rather than creating a body from certain rules; we search for rules that form a particular figure.

Currently, fractals are used to compress digital photos so that they occupy less space and may be transmitted at larger speed and less expensive; in addition, they are very useful when creating spectacular special effects blockbusters, since it is relatively simple to create all sorts of landscapes and money through fractals. So basic that with a small computer plan that occupies a small space, you can make a beautiful tree from a simple scheme.

Similarly, the fractal revolution affects the environment of music, since it is very widespread utilization of fractal procedures for the composition, specifically techno music or rhythmic foundation for any other type of music.

Furthermore, the concept of fractal dimension and also have had great impact in neuro-scientific biology. Alternatively, you can see great examples of fractal structures in the human body as the network of veins and arteries. From a sizable blood vessel and the aorta come out smaller vessels before appearance of very good hair to be able to cover as much space as possible to transport nutrients to cells. Furthermore, it is believed to guess a specific similarity between the technology of fractals and the genetic code, since in both instances from not a lot of information apparently complicated structures arise.