diff -r e22cba39230a -r f7151e4cd90f src/hierarchyelement.cpp
--- a/src/hierarchyelement.cpp	Mon Mar 06 00:41:13 2017 +0200
+++ b/src/hierarchyelement.cpp	Mon Mar 06 00:43:43 2017 +0200
@@ -67,9 +67,3 @@
 {
 	return m_window->grid();
 }
-
-
-MathFunctions* HierarchyElement::math() const
-{
-	return m_window->mathFunctions();
-}