Fixed Sphinx warning: use 'imgmath' instead of deprecated 'pngmath'.

diff --git a/src/conf.py b/src/conf.py
index 1ff69e6641397fc846697df47ba415bcd5dd2c00..a7240f1462b4979d513c9707f68fee863d64cd86 100644 (file)
--- a/src/conf.py
+++ b/src/conf.py
@@ -30,7 +30,7 @@ import shlex
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'sphinx.ext.pngmath'
+    'sphinx.ext.imgmath'
 ]
 
 # Add any paths that contain templates here, relative to this directory.