grafik.py

import os
import math

def graf (a, b):
  for i in range(1, 30):
    for j in range(1, 60):
        z = 10 * math.cos (a* 0.01*math.cos ((i *0.2  - 3)**2+ (j * 0.1- 3)**2 - b*math.pi * 0.1))
        if z >  9:
            print ('●', sep = '', end =   '')
        elif z >    5:
            print ('•', sep = '', end =   '')
        elif z >    2:
            print ('°', sep =  '', end =   '')
        elif z >    0.5:
            print ('.', sep =   '', end =   '')
        else:
            print (' ', sep =   '', end =   '')
    print ("")

for k in range (1000):
    os.system ('clear')
    m = k
    n = k
    graf (m, n)