In the context of a constrained optimization problem this is a solution that does not change in at least one direction in response to any arbitrarily small perturbation to the gradient of the objective function at the optimum.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。