From a mathematical viewpoint, the combined profits and losses on these derivatives will, by definition, cancel out, so they should not add anything to the total underlying loss.

从数学的角度看，根据定义，投资者在这些衍生品上的总损失应该等于总利润。

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The problem of route selection of the packets in networks is studied based on the viewpoint of fuzzy mathematical programming and system optimization in this paper.

本文基于模糊数学规划及系统优化的观点研究了分组交换网络中分组路径的选择问题。

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Based on distributed parameter, from the viewpoint of thermodynamics of refrigeration system, this paper develops a practicable mathematical model of an air-conditioning evaporator.

本文从制冷系统热动力学的观点出发，在分布参数的基础上建立了蒸发器的实用性数学模型。

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