Fix mathtext_examples so it runs.

mdboom · mdboom · commit 7085dade2873 · 2012-05-23T09:58:52.000-04:00
diff --git a/examples/pylab_examples/mathtext_examples.py b/examples/pylab_examples/mathtext_examples.py
@@ -38,7 +38,7 @@
     r"$\gamma = \frac{x=\frac{6}{8}}{y} \delta$",
     r'$\limsup_{x\to\infty}$',
     r'$\oint^\infty_0$',
-    r"$f^'$",
+    r"$f^\prime$",
     r'$\frac{x_2888}{y}$',
     r"$\sqrt[3]{\frac{X_2}{Y}}=5$",
     r"$\sqrt[5]{\prod^\frac{x}{2\pi^2}_\infty}$",
