public Matrix(String path) throws Exception {

        BufferedReader reader = new BufferedReader(new FileReader(path));
        List<List<Double>> fileMatrix = new ArrayList<List<Double>>();
        String line;
        while ((line = reader.readLine()) != null) {
            List<Double> matrixLine = new ArrayList<Double>();
            Scanner scanner = new Scanner(line);
            while (scanner.hasNextDouble()) {
                matrixLine.add(scanner.nextDouble());
            }
            fileMatrix.add(matrixLine);
        }

        if (fileMatrix.size() == 0 || fileMatrix.size() != fileMatrix.get(0).size() - 1) {
            System.err.println("Wrong matrix format");
            throw new Exception();
        }

        size = fileMatrix.size();
        double[][] matrix = new double[size][];
        for (int i = 0; i < size; i++) {
            matrix[i] = new double[size + 1];
            for (int j = 0; j < size + 1; j++) {
                matrix[i][j] = fileMatrix.get(i).get(j);
            }
        }

        double[][] inverseMatrix = new double[size][];

        for (int i = 0; i < size; i++) {
            inverseMatrix[i] = new double[size];
            inverseMatrix[i][i] = 1.0;
        }


        this.matrix = matrix;
        this.transform = Transform.NONE;
        this.inverseMatrix = inverseMatrix;
    }