From a80d70dd10f3c7d483579734e524c94c62832070 Mon Sep 17 00:00:00 2001
From: Tim Graham <timograham@gmail.com>
Date: Mon, 16 Nov 2015 11:18:01 -0500
Subject: [PATCH] Refs #23751 -- Added some unicode characters to the latex
 preamble.

Thanks Graham Wideman for the patch.
---
 docs/conf.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index 6373577756..956d006ced 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -235,8 +235,12 @@ rst_epilog = """
 # -- Options for LaTeX output --------------------------------------------------
 
 latex_elements = {
-    'preamble': ('\\DeclareUnicodeCharacter{2264}{\\ensuremath{\\le}}'
-                 '\\DeclareUnicodeCharacter{2265}{\\ensuremath{\\ge}}')
+    'preamble': (
+        '\\DeclareUnicodeCharacter{2264}{\\ensuremath{\\le}}'
+        '\\DeclareUnicodeCharacter{2265}{\\ensuremath{\\ge}}'
+        '\\DeclareUnicodeCharacter{2665}{[unicode-heart]}'
+        '\\DeclareUnicodeCharacter{2713}{[unicode-checkmark]}'
+    ),
 }
 
 # Grouping the document tree into LaTeX files. List of tuples