月不识己

摘要： 题目：用二分法求方程x3-x-1=0在[1,2]内的近拟解，要求误差不超过0.001。要求，用matlab写出编码，x_up = 2; x_down = 1; error = 0.001; res_down = x_down^3 - x_down - 1; res_up = x_up^3 - x_up - 1; while(res_down * res_up < 0) x = 0.5*(x_up + x_down); res = x^3 - x - 1; if( res*res_down < 0 ) ... 阅读全文