rhodonea

rhodonea

[‚rōd·ən′ē·ə]
(botany)
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It turns out that certain rhodonea curves (roses) as Durer's folium, r = sin([theta]/2), play an important role in studying the image properties of g.
It remains to show that [gamma](a) coincides with (one part) of the rhodonea r = sin([phi]/2), also called Durer's folium, 0 [less than or equal to] [phi] [less than or equal to] 2[pi].
is shown in the following figure (the cardioid is inside the domain K bounded by the "left part" of the rhodonea; the full rhodonea, called Durer's folium, is given in the right picture.