From d26770e025d6f855b9d7b2e24cde9337a28c6689 Mon Sep 17 00:00:00 2001
From: "rafat.hsn@gmail.com"
 <rafat.hsn@gmail.com@9b481396-cf50-37c3-dcfe-cb78dfef393d>
Date: Mon, 16 May 2011 06:56:11 +0000
Subject: [PATCH] Added some comments.

---
 demo/swtdemo.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/demo/swtdemo.cpp b/demo/swtdemo.cpp
index 3549a15..7210816 100644
--- a/demo/swtdemo.cpp
+++ b/demo/swtdemo.cpp
@@ -47,7 +47,9 @@ int main() {
 	    }
 	    sig.pop_back();
 	    vector<double> original;
-	    original = sig;
+	    original = sig; // Make a copy of the signal if you want to use original signal
+       // later on. The other option is to use IDWT output as the SWt/ISWT system is
+       // Perefect Reconstruction system.
 	    cout << "Please Enter the Number of DWT Stages J             :" << endl;
 
 	    int J;