更新

vendor/markbaker/matrix/classes/src/Decomposition/Decomposition.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Matrix\Decomposition;
+
+use Matrix\Exception;
+use Matrix\Matrix;
+
+class Decomposition
+{
+    const LU = 'LU';
+    const QR = 'QR';
+
+    /**
+     * @throws Exception
+     */
+    public static function decomposition($type, Matrix $matrix)
+    {
+        switch (strtoupper($type)) {
+            case self::LU:
+                return new LU($matrix);
+            case self::QR:
+                return new QR($matrix);
+            default:
+                throw new Exception('Invalid Decomposition');
+        }
+    }
+}