From d45c5a3b6730ec4c866f7ae0c03dd16330b657a4 Mon Sep 17 00:00:00 2001
From: Dael <dael.separa@gmail.com>
Date: Thu, 14 Feb 2019 22:11:10 +0800
Subject: [PATCH] fix L2 error

---
 DeepLearnMac/ManagedNN.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/DeepLearnMac/ManagedNN.cs b/DeepLearnMac/ManagedNN.cs
index 0e9e490..feeaa99 100644
--- a/DeepLearnMac/ManagedNN.cs
+++ b/DeepLearnMac/ManagedNN.cs
@@ -112,7 +112,7 @@ public void BackPropagation(ManagedArray training)
 
             for (var i = 0; i < Y_output.Length(); i++)
             {
-                L2 += Math.Sqrt(D3[i] * D3[i]);
+                L2 += (D3[i] * D3[i]);
                 Cost += (-Y_output[i] * Math.Log(Yk[i]) - (1 - Y_output[i]) * Math.Log(1 - Yk[i]));
             }