Vertical spacing in Matplotlib latex fractions

Question

I have created fractional values for my x tick labels, but the fractions look a little cramped to me. Is there a way to increase the vertical spacing?

import matplotlib.pyplot as plt

fig, ax = plt.subplots()

ax.set_xlim(0, 10)
ax.set_xticklabels(
    ['$\\frac{{{0}}}{{{1}}}$'.format('M', x) for x in ax.get_xticks()],
    fontsize=12)

plt.show()

Answer 1

Using \dfrac might do the trick. However, we would need to modify the preamble.

import matplotlib.pyplot as plt
plt.rc('text', usetex=True)
plt.rc('text.latex', preamble=r'\usepackage{amsmath}')
fig, ax = plt.subplots()

ax.set_xlim(0, 10)
ax.set_xticklabels(
    ['$\\dfrac{{{0}}}{{{1}}}$'.format('M', x) for x in ax.get_xticks()],
    fontsize=12)

Some more information here: How to write your own LaTeX preamble in Matplotlib?

Answer 2

The vertical spacing can be improved by forcing Matplotlib to use LaTeX rather than mathtext:

plt.rcParams['text.usetex'] = True
plt.rcParams['text.latex.preamble'] = [r'\usepackage{sansmath}', r'\sansmath']

The sansmath package retains the sans-serif type:

before: after: