title: Matplotlib, Consistent font using latex
body: <p>My problem is I'd like to use Latex titles in some plots, and no latex in others.  Right now, matplotlib has two different default fonts for Latex titles and non-Latex titles and I'd like the two to be consistent.  Is there an RC setting I have to change that will allow this automatically?</p>
  
  <p>I generate a plot with the following code:</p>
  
  <pre><code>import numpy as np
  from matplotlib import pyplot as plt
  
  tmpData = np.random.random( 300 )
  
  ##Create a plot with a tex title
  ax = plt.subplot(211)
  plt.plot(np.arange(300), tmpData)
  plt.title(r'$W_y(\tau, j=3)$')
  plt.setp(ax.get_xticklabels(), visible = False)
  
  ##Create another plot without a tex title
  plt.subplot(212)
  plt.plot(np.arange(300), tmpData )
  plt.title(r'Some random numbers')
  plt.show()
  </code></pre>
  
  <p>Here is the inconsistency I am talking about.  The axis tick labels are thin looking relative to the titles.:
  <img src="https://i.stack.imgur.com/vZDkO.png" alt=""></p>