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import numpy as np
import matplotlib.pyplot as plt

from matplotlib import rcParams
rcParams['figure.figsize'] = 10, 10

dim=100;

coor_list = [[0,0]]

len(coor_list)

for j in np.arange(dim):
    for i in np.arange(dim/2):
        
        # print(i,j)
        
#         length = len(coor_list) # total length of current coordinate list
        flag = 1
        
        for ele in coor_list:
            flag = flag * (i-ele[0]) * (j-ele[1]) * (i+ele[0]-j-ele[1])
#             print("   ", flag)
            
        if flag != 0:
            coor_list.append([i,j])
            coor_list.append([j,i])
            
            print("   ",[i,j],[j,i])

print(coor_list)

x = np.arange(dim)
points=np.transpose( coor_list  )
plt.plot(points[0],points[1],'s',markersize=1)
plt.plot(x,0.618*x)
plt.plot(x,x)
plt.grid(True)
plt.show()
plt.savefig('plot.png')