Here you can find the source of matrixToArray(double[][] m)
public static double[] matrixToArray(double[][] m)
//package com.java2s; /*// ww w . j av a 2s. c o m * Copyright (C) 2012 www.amsoft.cn * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static double[] matrixToArray(double[][] m) { int p = m.length * m[0].length; double[] result = new double[p]; for (int i = 0; i < m.length; i++) { for (int j = 0; j < m[i].length; j++) { int q = j * m.length + i; result[q] = m[i][j]; } } return result; } }