Mark ticks in latex in matplotlib

Question

In a plot in matplotlib I specially want to mark points on the x-axis as pi/2, pi, 3pi/2 and so on in latex. How can I do it?

Answer 1

Another possibility is to update the pyplot rcParams, although this might be rather a hack than a legitimate way.

import matplotlib.pyplot as plt
import numpy as np

cos = np.cos
pi  = np.pi

params = {'mathtext.default': 'regular' }  # Allows tex-style title & labels
plt.rcParams.update(params)

fig = plt.figure()
ax  = fig.add_subplot(1, 1, 1)
t   = np.linspace(0.0, 2*pi, 100)
s   = cos(t)
plt.plot(t, s)

ax.set_xticks([0, pi/2, pi, 3*pi/2, 2*pi])
ax.set_xticklabels(['$0$', r'$\frac{\pi}{2}$', r'$\pi$', r'$\frac{3\pi}{2}$', r'$2\pi$'])
plt.show()

enter image description here