# 2D-kromme import matplotlib.pyplot as plt import numpy as np fig = plt.figure (figsize = (7, 7)) data15 = np.loadtxt ('020106000072_904_15.txt') ax = fig.add_subplot () ax.set_aspect ("equal") ax.set_xlim ([-10, 10]) ax.set_ylim ([-10, 10]) plt.plot (data15[:,0], data15[:,1], color = "grey") plt.show ()