samer@0: /*
samer@0:  *	Copyright (c) 2000, Samer Abdallah, King's College London.
samer@0:  *	All rights reserved.
samer@0:  *
samer@0:  *	This software is provided AS iS and WITHOUT ANY WARRANTY; 
samer@0:  *	without even the implied warranty of MERCHANTABILITY or 
samer@0:  *	FITNESS FOR A PARTICULAR PURPOSE.
samer@0:  */
samer@0: 
samer@0: package samer.maths.opt;
samer@0: import  samer.maths.*;
samer@0: 
samer@0: public class Datum {
samer@0: 	public double []	x, g;		// position and gradient
samer@0: 	public double		f, s;		// value and slope
samer@0: 
samer@0: 	Datum(int n) {
samer@0: 		x = new double[n];
samer@0: 		g = new double[n];
samer@0: 	}
samer@0: 
samer@0: 	Datum(int n, double [] y) {
samer@0: 		x = y;
samer@0: 		g = new double[n];
samer@0: 	}
samer@0: 
samer@0: 	public void copy(Datum P) {
samer@0: 		Mathx.copy(P.x,x);
samer@0: 		Mathx.copy(P.g,g);
samer@0: 		f=P.f;
samer@0: 		s=P.s;
samer@0: 	}
samer@0: 
samer@0: 	public void dispose() { x=null; g=null; }
samer@0: }