Here you can find the source of dotprod(double[] xlist, double[] ylist)
public static double dotprod(double[] xlist, double[] ylist)
//package com.java2s; /**//from w ww. j a v a2s. co m * This file is part of GeneMANIA. * Copyright (C) 2010 University of Toronto. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ public class Main { public static double dotprod(double[] xlist, double[] ylist) { double result = 0.0; int size = Math.min(xlist.length, ylist.length); int n = 0; for (int i = 0; i < size; i++) { result += xlist[i] * ylist[i]; } return result; } }