# 3D-bol

import matplotlib.pyplot as plt
import numpy as np

plt.figure (figsize = (8, 8))

ax = plt.axes (projection = "3d")
ax.set_aspect ("equal")

u, v = np.mgrid [0:2 * np.pi:40j, 0:np.pi:20j]
x = np.cos (u) * np.sin (v)
y = np.sin (u) * np.sin (v)
z = np.cos (v)

ax.plot_wireframe (x, y, z, color = "blue")

plt.show ()