Merge pull request #6832 from hoiqs/tex-unicode-demo

DOC: Fix for ylabel title in example tex_unicode_demo.py

Issue with py2/p3 unicode escape

examples/pylab_examples/tex_unicode_demo.py

@@ -19,9 +19,8 @@
 plt.plot(t, s)
 
 plt.xlabel(r'\textbf{time (s)}')
-plt.ylabel(r'\textit{Velocity (\u00B0/sec)}', fontsize=16)
-plt.title(r"\TeX\ is Number \
-          $\displaystyle\sum_{n=1}^\infty\frac{-e^{i\pi}}{2^n}$!",
-          fontsize=16, color='r')
+plt.ylabel('\\textit{Velocity (\u00B0/sec)}', fontsize=16)
+plt.title(r'\TeX\ is Number $\displaystyle\sum_{n=1}^\infty'
+          r'\frac{-e^{i\pi}}{2^n}$!', fontsize=16, color='r')
 plt.grid(True)
 plt.show()