查询词典 triangular numbers

In use for over a thousand years the Dhow is a traditional Arab sailing vessel with one or more triangular 'Lateen' sails.

德霍战船配备一面或更多三角帆，上千年来，一直是阿拉伯世界传统船只。

The semi singular value decomposition A=USR is suggested,where U is an orthogonal matrix,S is a diagonalizable matrix and R is a upper-triangular matrix.

提出了半奇异值分解A=USR，其中U为正交矩阵，S为对角矩阵，R为上三角矩阵。

The intersection of sweep volume with complicated surface normal is transformed into computation of intersection between triangular mesh and directed line segment.

将扫描体与复杂曲面法矢的求交问题，转化为三角网格与有向线段之间的求交计算。

In this triangular relation of China, the US and EU, China is in a disadvantageous position.

面对中国持续快速的发展，美欧对华政策都发生了不同程度的微妙变化。

Spatial relationship; Polygon; Delaunay triangular net; Closest distance; Restricted circle

空间关系；多边形；Delaunay三角网；最近距离；约束圆

spatial relation ; polygon ; Delaunay triangular net ; closest distance ; restricted circle

对于点状和线状实体之间的距离计算非常简单，这里不赘述。本文主要从二维空间面状实体

On the basis of experimental research, this thesis applies 2-dimensional non-linear finite element method to the analysis of transient temperature field on the section by means of relatively high precision triangular element of six joints. When the temperature field is analyzed, finite element reseaus are divided in space field and finite difference reseaus are divided in time field, and then the program is compiled. The computing results are in good agreement with the test data. It indicates that the program is stable and precise.

在试验研究的基础上，本文采用精度较高的三角形六结点单元对构件截面二维非线性瞬态温度场进行了有限元分析，即在空间域内采用有限元网格划分，在时间域内采用有限差分网格划分，据此编制了计算程序，计算结果与试验数据符合较好，程序稳定性好，精度满足要求。

The infinite upper triangular matrix on a Division ring is discussed.

论文对体上一般的无限上三角阵进行了研究。

In the second chapter, we discussed the construction of maximal sets on block triangular matrices over a division ring.

第二章研究分块三角矩阵空间极大集的几何结构。

Geometry of matrices;;division ring;;block triangular matrices;;maximal sets of rank;;arithmetic distance;;adjacency preserving

论文导师黄礼平，论文学位硕士，论文专业应用数学论文单位长沙理工大学，点击次数 3，论文页数 41页File Size1325K

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。