title: Bold symbol in Matlab legend
body: <p>I have a plot in Matlab with the following legend:</p>
  
  <pre><code>h = legend('Reference','$\hat{\theta}_2 = 5\theta_2$','$\hat{\theta}_2 = 10\theta_2$');    
  set(h,'Interpreter','latex')
  </code></pre>
  
  <p>Now I want to make the variables <code>\theta</code> bold faced for use in my LaTeX report.</p>
  
  <p>I already tried:</p>
  
  <pre><code>h = legend('Reference','$\hat{\mathbf{\theta}}_2 = 5\mathbf{\theta}_2$','$\hat{\mathbf{\theta}}_2 = 10\mathbf{\theta}_2$');    
  set(h,'Interpreter','latex')
  </code></pre>
  
  <p>Unfortunately this is not working.</p>