fix issue #15469 Exponentially Weighed Windows page now shows formulas

Chaïm De Mulder · Chaïm De Mulder · commit eee5f987d29b · 2017-03-08T19:44:02.000+01:00
diff --git a/doc/source/conf.py b/doc/source/conf.py
@@ -46,8 +46,8 @@
               'ipython_sphinxext.ipython_console_highlighting',
               'sphinx.ext.intersphinx',
               'sphinx.ext.coverage',
-              'sphinx.ext.pngmath',
-              'sphinx.ext.ifconfig',
+              'sphinx.ext.mathjax',
+	      'sphinx.ext.ifconfig',
               'sphinx.ext.linkcode',
               ]
 
