The first optimization technique, which is known as steepest descent, goes back to Gauss.

首先优化技术，这是被称为最速下降，可追溯到高斯。

youdao

The first way is classical and consists of determining the parameters of the empirical expressions of the growth rate through the use of a nonlinear programming(NLP)optimization technique.

本论文采用两种方法来描述晶体生长率模型的设计，第一种方法是通过采用非线性规划最优化方法（NLP）决定晶体生长率经验公式的参数；

youdao