提出了非线性单纯形算法的修改算法。

A new modified nonlinear simplex method is offered.

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详细介绍了非线性单纯形方法的算法思想，非线性单纯形方法是一种能够快速、稳定地寻找到评价函数最小值的优化算法，特别适合于对已有的设计进行调整。

The method is a very fast and stable refinement technique that makes for the nearest merit function minimum, and it is particularly suitable for the adjustment of an already useful design.

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针对一类非线性比式和问题首次提出一种求其全局最优解的单纯形分枝定界算法。

This paper presents for the first time a simplicial branch and bound algorithm for globally solving a class of nonlinear sum of ratios problem.

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