diff --git a/advanced-math/knowledge/5-differential-equation/differential-equation.tex b/advanced-math/knowledge/5-differential-equation/differential-equation.tex
index cce2318..c4f9e8c 100644
--- a/advanced-math/knowledge/5-differential-equation/differential-equation.tex
+++ b/advanced-math/knowledge/5-differential-equation/differential-equation.tex
@@ -30,5 +30,4 @@
 \setcounter{page}{1}
 \section{}
 
-
 \end{document}