Sunflower Seed Arrangements

number of seeds

100

This Demonstration shows the distribution of sunflower seeds as a function of the number of seeds [1]. Generally, sunflowers have 800–2000 seeds. The function has the form

θ=

2π

2

ϕ

n

,

r=c

n

, where

ϕ

is the golden ratio and

c

is an arbitrary constant (here

1

).