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Doyle spiral
Circle packing arranged in spirals / From Wikipedia, the free encyclopedia
In the mathematics of circle packing, a Doyle spiral is a pattern of non-crossing circles in the plane in which each circle is surrounded by a ring of six tangent circles. These patterns contain spiral arms formed by circles linked through opposite points of tangency, with their centers on logarithmic spirals of three different shapes.
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Doyle spirals are named after mathematician Peter G. Doyle, who made an important contribution to their mathematical construction in the late 1980s or early 1990s.[2] However, their study in phyllotaxis (the mathematics of plant growth) dates back to the early 1900s.[1][3][4]