This paper is mainly devoted to provide a supplementary analysis of extreme value problem of bivariate functions, in which a new sufficient condition and its concise proof when critical case is given.
本文利用二次型理论给出了二次函数最值的一个充分条件及求法 ，定义了二元齐次多项式的正定性 ，并基于定义给出了二元函数极值的一个充分条件。
WAMAP can strengthen the function of data integration and real line analysis, which offer the real time and supplementary decision information of power grid with high quality for dispatching people.
WAMAP加强了数据整合和实时分析功能，能够为调度人员提供高质量的电网实时动态信息和辅助决策信息。
The method is gradually and widely applied to field analysis, lab diagnosis, log explanation and potential test design as a supplementary measure.
该方法作为一种定性而有效的辅助手段，正逐步地广泛应用于现场分析、室内判断、测井解释以及试油设计等领域中。
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