From 650e7dd20d65b68ce36ebc341dc086b75e210462 Mon Sep 17 00:00:00 2001
From: Arkadiusz Kondas <arkadiusz.kondas@gmail.com>
Date: Sat, 30 Apr 2016 23:54:05 +0200
Subject: [PATCH] simply getDeterminant method

---
 src/Phpml/Math/Matrix.php | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/Phpml/Math/Matrix.php b/src/Phpml/Math/Matrix.php
index ee8fd3c..7c04119 100644
--- a/src/Phpml/Math/Matrix.php
+++ b/src/Phpml/Math/Matrix.php
@@ -126,6 +126,16 @@ class Matrix
             throw MatrixException::notSquareMatrix();
         }
 
+        return $this->determinant = $this->calculateDeterminant();
+    }
+
+    /**
+     * @return float|int
+     *
+     * @throws MatrixException
+     */
+    private function calculateDeterminant()
+    {
         $determinant = 0;
         if ($this->rows == 1 && $this->columns == 1) {
             $determinant = $this->matrix[0][0];
@@ -141,7 +151,7 @@ class Matrix
             }
         }
 
-        return $this->determinant = $determinant;
+        return $determinant;
     }
 
     /**