diff src/samer/maths/Difference.java @ 0:bf79fb79ee13

Initial Mercurial check in.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/samer/maths/Difference.java	Tue Jan 17 17:50:20 2012 +0000
@@ -0,0 +1,26 @@
+/*
+ *	Copyright (c) 2000, Samer Abdallah, King's College London.
+ *	All rights reserved.
+ *
+ *	This software is provided AS iS and WITHOUT ANY WARRANTY; 
+ *	without even the implied warranty of MERCHANTABILITY or 
+ *	FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+package samer.maths;
+
+public class Difference implements Generator
+{
+	Generator g1, g2;
+
+	public Difference( Generator g1, Generator g2) { this.g1=g1; this.g2=g2; }
+
+	public void   dispose() { g1.dispose(); g2.dispose(); }
+	public double next() { return g1.next()-g2.next(); }
+	public void   next(double [] x) { 
+		g1.next(x);
+		for (int i=0; i<x.length; i++) x[i]-=g2.next(); 
+	}
+
+	public String toString() { return g1.toString()+"-"+g2; }
+}