NumPy broadcasting is powerful tool for dealing with different, but compatible shape arrays.
File points_circle.dat contains x, y coordinates along a circle. Translate all the coordinates with some vector e.g. (2.1, 1.1). Plot both the original and translated points in order to see the effect of translation.
In case you are not familiar with matplotlib, below is a simple example for
plotting coordinates:
import numpy as np
import matplotlib.pyplot as plt
x = np.random.random(10)
y = np.random.random(10)
plt.plot(x, y, 'o')
plt.show()