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[[Image:HenonMapImage.png|thumb|250px|Hénon attractor for ''a'' = 1.4 and ''b'' = 0.3]]
 
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The '''Hénon map''' is a discrete-time [[dynamical system]]. It is one of the most studied examples of dynamical systems that exhibit [[chaos theory|chaotic behavior]]. The Hénon map takes a point (''x<sub>n</sub>'',&nbsp;''y<sub>n</sub>'') in the plane and maps it to a new point
 
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:<math>\begin{align}
 
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  x_{n+1} &= y_n+1-a x_n^2,\\
 
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  y_{n+1} &= b x_n.
 
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\end{align}</math>
 
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The map depends on two parameters, ''a'' and ''b'', which for the '''canonical Hénon map''' have values of ''a''&nbsp;=&nbsp;1.4 and ''b''&nbsp;=&nbsp;0.3.  For the canonical values the Hénon map is chaotic. For other values of ''a'' and ''b'' the map may be chaotic, intermittent, or converge to a periodic orbit.  An overview of the type of behavior of the map at different parameter values may be obtained from its [[orbit diagram]].
 
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Wersja z 10:51, 26 sie 2010