研究戴煦数与欧拉数之间的关系。
This paper makes an approach to the relationship between Dai Xu Numbers and Euler Numbers.
文中用基于图段的方法计算欧拉数，并对该算法的时空复杂度进行分析比较。
In this paper, an approach to compute Euler number based on foreground run is formulated.
文中用基于图段的方法计算欧拉数，并对该算法的时空复杂度进行分析比较。
This paper makes an approach to the relationship between Dai Xu numbers and Euler numbers.
优化特征选择，选定面积、周长、长轴、短轴、欧拉数、几何矩等共12个特征参数作为神经网络输入向量进行分类试验。
Optimization of feature selection, we select area, perimeter, long axis, short axis, Euler number, geometric moments, and a total of 12 feature parameters as input vector.
欧拉参数是规范四元数。
因此，对于解决欧拉方程奇异性来讲，双欧法要优于四元数法。
So, dual Euler method is better than quaternion method in the solution of the singularity of the Euler equation.
本文在前人研究的面着色问题基础上，运用欧拉公式和握手定理通过解方程组得到连通平面图的面色数。
In this paper, Euler's formula and Handshaking lemma is used to obtain the face chromatic number of a planar graph by solving equations.
对解决欧拉方程奇异性的双欧法和四元数法进行了对比研究。
This paper studies comparatively dual Euler method and quaternion method which are used for the solution of the singularity of the Euler equation.
对解决欧拉方程奇异性的双欧法和四元数法进行了对比研究。
This paper studies comparatively dual Euler method and quaternion method which are used for the solution of the singularity of the Euler equation.
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