查询词典 coordinate conversion

A Prove that d/dx is a linear operator on V. b You can put a coordinate system on V by mapping p to p(0, p(1), p(2).(Please imagine that flipped 90 degrees so it is a column.) Find the matrix that represents d/dx in this coordinate system.

1证明d/dx是V上的线性算子；2你可以将p映射到p(0， p(1)， p(2)，从而给V加上坐标系（想象将其翻转90°，形成柱体），找出在此坐标系中代表d/dx的矩阵。

A 3D finite element model for calculating the casing stress in the directional wells was developed based on the theory of coordinate conversion.

摘要基于坐标变换方法建立了适用于任意井眼轨迹的定向井套管应力三维有限元计算模型。

Analyze the projection method and space Cartesian coordinate system. It focuses on conversion between different coordinates.

对地图投影中的投影方式以及采用的空间直角坐标系统进行分析，其中重点介绍了投影坐标与地理坐标、地理坐标与空间直角坐标以及空间直角坐标之间的转换问题。

This algorithm lights five pixels in a loop between the coordinate information of line's start and end points. Therefore, the speedof generating of straight line can be accelerated. Compared with the four-step, it is the speed that increased by about 20% while the complexity is almost the same. Meanwhile the five-step still maintains the precise of the traditional line scan conversion algorithm.

该算法过给定的直线的始点和终点，可以一次计算得到并且点亮五个象素点，从而较传统的直线扫描转换算法成倍地提高了直线的生成速度，与著名的"四步法"相比，几乎没有增加复杂性，而速度则提高约20%，同时仍然保持传统直线扫描转换算法的精度。

Starting from the view point of the characterization of geological objectives, interpretation is made of the plane coordinate conversion from both its physical and geometrical significance.

从地理对象描述角度出发，对平面坐标转换进行了物理意义和几何意义的解释，并得到概括的数学模型，建立2类转换方法的参数计算公式。

By matrix conversion and coordinate transform, the part surface measured data can be converted into assembly model, therefore, the characteristic of part surface coherence and boundary share will be assured.

本文提出了一种基于基准点和配合轮廓的装配建模方法并在实践中应用，使摩托车配合件达到了共线的设计要求。

Vector Control is based on motor unification principle, energy conversion and vector coordinate transformation theory.

矢量控制作为一种先进的控制策略，是在电机统一理论、机电能量转换和坐标变换理论的基础上发展起来的。

This paper discussed several methods of the evaluation on total cumulative pitch error of gear: diagram, tabulation, coordinate conversion.

齿距累积误差是影响齿轮传动准确性的重要检测项目之一，利用计算机方便、快捷地处理测量数据在工程中具有实际意义。

According to generating finite element model by meshing for special-shaped section columns and the conversion of coordinate,a computer program considered sliding of reinforcement anchoring using the digital iteration method for full range analysis of special-shaped columns is complied.

通过异形柱截面的有限元单元网格划分及坐标变换，在本文确定的数值分析方法上采用FORTRAN90语言编制了考虑粘结滑移影响的钢筋混凝土异形柱截面N-M-φ关系全曲线的计算机程序。

Illustrating ellipse and sinusoid curves,the coordinate conversion and programming in the process of using macro command were stated.

探讨了常见非圆弧曲线的加工方法，并以椭圆及正弦曲线为例，叙述了在使用宏指令加工过程中坐标值的数据转换及程序编制。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。