diff --git a/Math/Matrix/LUDecomposition.php b/Math/Matrix/LUDecomposition.php
index 6517f2c4d..2924ec455 100644
--- a/Math/Matrix/LUDecomposition.php
+++ b/Math/Matrix/LUDecomposition.php
@@ -84,6 +84,8 @@ class LUDecomposition
 
     public function getL()
     {
+        $L = [[]];
+
         for ($i = 0; $i < $this->m; ++$i) {
 			for ($j = 0; $j < $this->n; ++$j) {
 				if ($i > $j) {
@@ -104,6 +106,8 @@ class LUDecomposition
 
     public function getU()
     {
+        $U = [[]];
+
         for ($i = 0; $i < $this->n; ++$i) {
 			for ($j = 0; $j < $this->n; ++$j) {
 				if ($i <= $j) {
@@ -154,8 +158,6 @@ class LUDecomposition
         if (!$this->isNonsingular()) {
         }
 
-        var_dump($this->piv);
-
         $nx = $B->getM();
         $X  = $B->getMatrix($this->piv, 0, $nx-1);