Plot unit vectors

unit_vectors.py

# choose figure size
plt.figure(figsize=(6, 6))

# Assure that ticks are displayed with a step equal to 1
ax = plt.gca()
ax.xaxis.set_major_locator(ticker.MultipleLocator(1))
ax.yaxis.set_major_locator(ticker.MultipleLocator(1))

# draw axes
plt.axhline(0, c='#A9A9A9', zorder=0)
plt.axvline(0, c='#A9A9A9', zorder=0)

ax.quiver(0, 0, 0, 1, color="#2EBCE7", angles='xy', scale_units='xy', scale=1)
plt.text(-0.3, 0.5, r'$\vec{j}$', color="#2EBCE7", size=18)

ax.quiver(0, 0, 1, 0, color="#00E64E", angles='xy', scale_units='xy', scale=1)
plt.text(0.4, -0.4, r'$\vec{i}$', color="#00E64E", size=18)

plt.xlim(-1, 3)
plt.ylim(-1, 3)