Seashells: the plainness and beauty of their mathematical description

Examples: Gastropods

Planorbis (Snail shell, Gastropod of fresh water, [9, p. 14])

[alpha=84, beta=85, phi=20, mu=1, Omega=5, A=50, a=25, b=45, L=0]

(Click with the mouse over the picture to rotate it)

It is a snail shell that lives in rivers and lakes.

[9] Shells, Visual Encyclopedia, Editorial Verbo, 1997.

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