Harter-Heighway Dragon
From Math Images
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|HighSchool=Yes | |HighSchool=Yes | ||
|ImageDesc====Perimeter=== | |ImageDesc====Perimeter=== | ||
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[[Image:DragonCurve_basic.png|thumb|left|250px|First iteration in detail]] | [[Image:DragonCurve_basic.png|thumb|left|250px|First iteration in detail]] | ||
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===Number of Sides=== | ===Number of Sides=== | ||
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The number of sides of the Harter-Heighway curve for any degree of iteration (''k'') is given by <math>N_k = 2^k\,</math>. | The number of sides of the Harter-Heighway curve for any degree of iteration (''k'') is given by <math>N_k = 2^k\,</math>. | ||
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===Fractal Dimension=== | ===Fractal Dimension=== | ||
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[[Image:DragonCurveDimension.png|right|thumb|225px|2nd iteration of the Harter-Heighway Dragon]] | [[Image:DragonCurveDimension.png|right|thumb|225px|2nd iteration of the Harter-Heighway Dragon]] | ||
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===Angle=== | ===Angle=== | ||
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The Harter-Heighway curve iterates with a 90 degree angle. However, if the angle is changed, new curves can be created: | The Harter-Heighway curve iterates with a 90 degree angle. However, if the angle is changed, new curves can be created: | ||
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Image:CurveAngle110.jpg|'''Curve with angle 110''' | Image:CurveAngle110.jpg|'''Curve with angle 110''' | ||
</gallery> | </gallery> | ||
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|other=Algebra | |other=Algebra |
Revision as of 11:57, 3 June 2009
- The image above is an example of a Harter-Heighway Curve (also called Dragon Curve). This fractal was first described in 1967 by American Martin Gardner and is often referred to as the Jurassic Park Curve, because it garnered popularity after being drawn and alluded to in the novel Jurassic Park by Michael Crichton (1990).
Harter-Heighway Dragon Curve (3D- twist) |
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Contents |
Basic Description
The curve itself is fairly simple, with a line as the base segment. Each iteration replaces each line with two line segments at an angle of 90 degrees (other angles can be used to make various looking fractals), with each line being rotated alternatively to the left or to the right of the line it is replacing.
The Harter-Heighway Dragon is created by iteration of the curve described above. The curve can be repeated infinitely, so that the perimeter of the dragon is in fact infinite. However, if you look to the image at the right, a 15th iteration of the Harter-Heighway Dragon is already enough to create an impressive fractal.
The perimeter of the Harter-Heighway curve increases by with each repetition of the curve.
An interesting property of this curve is that the curve never crosses itself. Also, the curve exhibits self-similarity because as you look closer and closer at the curve, the curve continues to look like the larger curve.
A More Mathematical Explanation
- Note: understanding of this explanation requires: *Algebra
Perimeter
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Teaching Materials
- There are currently no teaching materials for this page. Add teaching materials.
About the Creator of this Image
SolKoll is interested in fractals, and created this image using an iterated function system (IFS).
Leave a message on the discussion page by clicking the 'discussion' tab at the top of this image page.