# 3D-vectorveld

import matplotlib.pyplot as plt
import numpy as np

x, y, z = np.meshgrid (np.arange (-0.3, 0.3, 0.12), np.arange (-0.3, 0.3, 0.12), np.arange (-0.3, 0.3, 0.12))
 
u = - np.exp (- x)
v = - np.exp (- 2 * y)
w = 0

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

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

q = ax.quiver (x, y, z, u, v, w, color = "gold", length = 0.15)

plt.show ()