Phyllotaxis in Python

phyllotaxis.py

%matplotlib inline
from math import cos, sin, sqrt, pi
import numpy as np
import matplotlib.pyplot as plt

# golden angle definition
ga = 360/((1+sqrt(5))/2)**2

# initialize random array
a = np.zeros((1000, 2))

# update the positions of each point
for i in range(len(a)):
    a[i] = [
        (sqrt(i)*cos((i*ga)/180*pi)),
        (sqrt(i)*sin((i*ga)/180*pi)),
    ]

# plot the distribution
plt.scatter(*a.T)