解三次方程源码，绝对正确，首先注入参数，请参考学习-Solution of cubic equation source, absolutely right, first of all injection parameters, please refer to learning

c++解一员三次方程源码，有虚实跟，绝对正确！-c++ solution of a cubic equation source, the actual situation with absolutely correct!

三次插值算法一个小例子，用于计算多元方程的最小值，也就是最优化问题-A small example cubic interpolation algorithm for the calculation of the minimum value of the multi-equation optimization problem, which is the most