用二分法求方程的近似解
猜一猜它的价格¥2125
猜一猜它的价格¥87503
区间中点的值中点函数近似值2.52.752.6252.56252.531252.5468752.53906252.53515625-0.0840.5120.2150.066-0.0090.0290.0100.001(精确度0.01)演示(2,3)求方程的例近似解(2.5,3)(2.5,2.75)(2.5,2.625)(2.5,2.5625)(2.53125,2.5625)(2.53125,2.546875)(2.53125,2.5390625)
定义二分法:对于在区间[a,b]上连续不断且f(a)f(b)