The introduction of mathematical software package into the field of math education has brought about many benefits, chief among them the ability to obtain more accurate and sometimes precise results more quickly. In a sense, these programs are design

不精确拉格朗日法，求解矩阵补全的凸优化问题，可以用该方法实现背景建模-Imprecise Lagrangian method for solving matrix completion convex optimization problem, you can use this method, background modeling