diff --git a/report.tex b/report.tex
index 2813dd8..9182d49 100644
--- a/report.tex
+++ b/report.tex
@@ -829,6 +829,7 @@ $}
     \vspace{0.2cm}
 
     We have to add some constraint terms that equals to zero, while contributes to the principal symbol, until the principal symbol matrix is diagonalizable with real eigenvalues.
+
     Available terms to add:
     \begin{gather*}
       \constraintA{_i} \qc \constraintB{^i_j} \qc \constraintC*{_i} \qc \constraintD*{_i_j_k},\\