最速下降法优化，无约束，可以自己改进。很容易懂有简单的说明。-Steepest descent method optimization, non-binding, can improve. There is a simple easy to understand explanation.

最速下降法实现多项式最小值，该程序多项式是特定的。-Steepest descent method to achieve the minimum polynomial, the polynomial is a specific procedure.