x1=2x0-1=-1 x2=2x3-1=-3 1=-55 显然迭代法发散 (2)如果将原方程化为等价方程 x+1 22 1 3 x1 = x0 - = -1 2 1 3 x2 = x1 - = -3 2 1 3 x 3 = x2 - = -55 0 x0 = KKK 显然迭代法发散 3 2 + 1 = x x (2) 如果将原方程化为等价方程