拉格朗日差值和牛顿（线性插值）函数示例，将结果输出到文本文件-Lagrangian difference and Newton (linear interpolation) function example, to output the results to a text file

用拉格朗日法求解等式约束的凸二次规划 用起作用集法求解不等式约束的凸二次规划 用路径跟踪法求解不等式约束的凸二次规划 -Lagrangian method for solving equality constraints convex quadratic programming work set method for solving inequality constraints convex quadratic programming path tracking method for