private Matrix getExcludedMatrix(int row, int column) {
		Matrix m = new Matrix(numRows - 1, numColumns - 1);
		for(int i = 0; i < numRows - 1; i++) {
			for(int j = 0; j < numColumns - 1; j++) {
				m.elements[i][j] = elements[i < row ? i : i + 1][j < column ? j
						: j + 1];
			}
		}
		return m;
	}