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diff --git a/ETL/trunk/ETL/_curve_func.h b/ETL/trunk/ETL/_curve_func.h
deleted file mode 100644
index b2898aa..0000000
--- a/ETL/trunk/ETL/_curve_func.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*! ========================================================================
-** Extended Template and Library
-** Utility Curve Template Class Implementations
-** $Id$
-**
-** Copyright (c) 2002 Robert B. Quattlebaum Jr.
-**
-** This package is free software; you can redistribute it and/or
-** modify it under the terms of the GNU General Public License as
-** published by the Free Software Foundation; either version 2 of
-** the License, or (at your option) any later version.
-**
-** This package is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-** General Public License for more details.
-**
-** === N O T E S ===========================================================
-**
-** This is an internal header file, included by other ETL headers.
-** You should not attempt to use it directly.
-**
-** ========================================================================= */
-
-/* === S T A R T =========================================================== */
-
-#ifndef __ETL__CURVE_FUNC_H
-#define __ETL__CURVE_FUNC_H
-
-/* === H E A D E R S ======================================================= */
-
-#include <functional>
-
-/* -- C L A S S E S --------------------------------------------------------- */
-
-template <class T, class K=float>
-struct affine_combo
-{
-	// from (a) to (x) : x = a(1-t) + b(t)
-	T operator()(const T &a,const T &b,const K &t)const
-	{
-		return T( (b-a)*t+a );
-	}
-
-	// from (x) to (a) : a = (x-b(t)) / (1-t)
-	T reverse(const T &x, const T &b, const K &t)const
-	{
-		return T( (x-t*b)*(static_cast<K>(1)/(static_cast<K>(1)-t)) );
-	}
-};
-
-template <class T, class K=float>
-struct distance_func : public std::binary_function<T, T, K>
-{
-	K operator()(const T &a,const T &b)const
-	{
-		T delta=b-a;
-		return static_cast<K>(delta*delta);
-	}
-
-	K cook(const K &x)const { return x*x; }
-	K uncook(const K &x)const { return sqrt(x); }
-
-};
-
-/* -- E N D ----------------------------------------------------------------- */
-
-#endif