import numpy as np
import matplotlib.pyplot as plt

nmax = 200
upplosning = 200

x = np.linspace(-2,2,upplosning)

y = np.linspace(-2,2,upplosning)


for b in y:
    for a in x:
        c = complex(a,b)
        z = 0
        n = 0
        while (abs(z)<2 and n < nmax):
            z = z**2 + c
            n = n + 1
        if n == nmax:
            plt.plot(a, b, '.b', markersize=2)
plt.savefig('graph')
plt.show()