In this paper, based on the model's mathematical structure, we propose an elementary solution method.
本文提出了一种基于模型结构的初等数学解法。
This paper discussed an elementary solution to the envelope of a kind of family of curves of which the equation was one of the cubic equations in regard to a parameter.
本文论述曲线族的方程为关于参数的三次方程时，其包络曲线方程的初等求法。
Described in this paper is the calculation of hydrodynamic coefficients of submarine horizontal stabilizing fin -rudder assembly by a numerical method of finite elementary solution.
本文用有限基本解方法计算潜艇水平稳定翼与舵组合体的流体动力系数。
In this paper, the problem of Crossing Speedily the Changjiang River is analysed, and a type of functional extreme value model is built, then its analysis and elementary solution is illustrated.
对“抢渡长江”问题进行了分析，建立了一种函数极值的数学模型，分析了解题思路和初等求解方法。
In this paper, the problem of Crossing Speedily the Changjiang River is analysed, and a type of functional extreme value model is built, then its analysis and elementary solution is illustrated.
对“抢渡长江”问题进行了分析，建立了一种函数极值的数学模型，分析了解题思路和初等求解方法。
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