Conic Functions: Eyes



Three parts of the eye take on the characteristics of a conic function. First, the pupil and iris take on the shape of a perfect circle, the form of a special ellipse, whereas the general shape of the eye encasing the iris, takes on the shape of a horizontal major axis ellipse. with the iris being perfectly symmetrical and circular, as a special ellipse, it is evident that the iris follows the parameters of the equation y^2 + x^2 = 1, and as the general eye shape follows a structure with a major horizontal axis, it follows the equation of 2y^2 + x^2 = 1, where the 'y' coefficient will always be larger than the 'x' coefficient.
 


Other humanoid conic functions:




Head and Mouth 
(human heads are shaped as a vertical major axis ellipse, and the mouth generally takes on a horizontal major axis ellipse, but can morph into both a circle and a vertical major ellipse)
 

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