查询词典 dot matrix

Selfconjugate matrix, skewselfconjugate matrix, perselfconjugate matrix, skewperselfconjugate matrix, centrosymmetric matrix, skewcentrosymmetric matrix, bisymmetric matrix, and skewbisymmetric matrix over a ring with an involutorial antiautomorphism are defined. Significant criteria for matrices to be bisymmetric and skewbisymmetric are obtained.

在具有对合反自同构的环上定义了自共轭矩阵，斜自共轭矩阵，广自共轭矩阵，斜广自共轭矩阵，中心对称矩阵，斜中心对称矩阵，双对称矩阵和斜双对称矩阵，建立了双对称矩阵和斜双对称矩阵的重要判定定理。

Five ways on comparing covariance matrix are applied to the Shanghai 50 Indexes Stock Exchange, which are sample covariance matrix, scalar matrix, two-parameter covariance matrix, single index matrix, constant correlation matrix. We adopt principal components method and Markowitz portfolio method to measure stock market risk using VaR, getting the effect of measuring market risk. The result shows that sample covariance matrix and two-parameter covariance matrix could measure market risk more effectively.

本文以上证50指数数据为样本，采用样本协方差矩阵、数量矩阵、两参数模型矩阵、单指数模型矩阵、常量相关矩阵作为与股票相关的协方差矩阵，结合投资策略选择的主成分方法和Markowitz最优投资组合方法，计算VaR以度量市场风险，并比较了五种协方差矩阵度量市场风险的效果，结果表明，在主成分方法中，样本协方差矩阵和两参数矩阵方法能有效的度量市场风险。

On the basis of the definition of matrix traces , this paper discusses their characteristics at first and then according to the norm of the F of square matrix and Cauchy-Schwarz inequality gives how to prove the zero matrix, unsimilar matrix, number cloth matrix, column matrix idempotent matrix and non-equality matrix.

根据矩阵迹的定义，首先给出了矩阵迹的性质，然后依据方阵的F—范数定义Cauchy—Schwarz不等式，给出了零矩阵，不相似矩阵，数幂矩阵，列矩阵，幂等矩阵及矩阵不等式的证法。

Selection of dot matrix LCD module and design of interface;2. Naxi hieroglyph of dot matrix and vector and curve generativity;3. Pattern of Chinese traditional settlements is introduced,which has particular dot matrix features of traditional architecture.

介绍了中国传统聚落的模式，指出它具有传统建筑所独有的点阵特点，并列举了能够将充满个性的"点"通过彼此和谐联系的"阵"结合的实例，并以此来启发当代建筑的设计思路，使其在居住建筑中得到体现，值得当代建筑师们思考。

A measure of a printer is printing resolution, print speed and noises frequently used printers have dot matrix printer, inkjet printer and laser printers, dot matrix printer with the printer and paper physical contact to print character graphics, was then divided into two by the ink jet printing character graphics series dot-matrix characters non-bumping fanwei inkjet printers and thermal printers.

衡量打印机的指标是打印的分辨率，打印速度和噪声。常用的打印机有针式打印机，喷墨打印机和激光打印机，针式打印机通过打印机和纸张的物理接触来打印字符图形，而后两种是通过喷射墨粉来印刷字符图形的串式点阵字符非击打式打印机主要有喷墨式和热敏式打印机两种。

Computing inverse matrix, a unit entrainment in the matrix behind the matrix, and then in front of it is processed into a matrix, diagonal matrix, the latter matrix that is the inverse matrix.

详细说明：计算逆矩阵，在矩阵后面夹带一个单位矩阵，然后把前面那一个矩阵处理成对角线单位矩阵，后面的那个矩阵就是逆矩阵。

Figure 3 the rink and the dot or reduce the map click here to view all news photo 3 1/4 tiles there are four 50% of the standard that is used to control exposure, proofing, Business card printing and membership card when the layout of the deep and superficial changes. 50% of the standard dot if the angle is large, targejia dot gain, on the other hand if a crane in the four corners, the dot.

图3 目测网不面增不小或放不小图不面击此处查察残部故事图片3）每1/4图块洋有4个50%的尺度不圆网不面，用于把持晒版、打样、制卡和会员卡制作时版面的深浅变冻。50%的尺度不圆网不面如果搭角不小，则网不面增不小，反之如四角脱开，则网不面放不小。

Taking the square mesh point as an example, the Visual effects from the point of view, the angle of 45 ° dot generated visual effects the most comfortable and beauty, as well as stable and not rigid, monochrome business card printing and membership card making dot point of rweting are usually 45 ° angle. 15 ° and 75 ° dot point of view is not very stable, but it's not just sort of 90 °(0 °) dot point of Visual effects are the worst, though it is stable but dull.

以不不不圆形网点为例，从触觉成果上来看，45°的网点角度爆发的触觉成果最安适、好看，表示为安定而不板滞，因此对于单色制卡和会员卡制作品，网点的角度凡是拔取45°的角度。15°和75°的网点角度虽然不是很安定但也不板滞，90°（0°）的网点角度触觉成果最不对，它虽然安定但很板滞。

Fangzheng fine gravure printing dot option provides a variety of mesh point structures, such as coin-shaped gravure printing dot, dot honeycomb-shaped gravure gravure printing, t-dot and other detectors）submitted.

耿介粗忽瘪印网不面选件供应了多栽网不面布局，如货币不神瘪印网不面、蜂窝不神瘪印网不面、T型瘪印网不面等多栽不面型。

The algorithm uses the wavelet decomposition and reconstruction in multi-resolution editing B-spline curves and transforms a zonal matrix or sparse matrix to a row simplified matrix using the properties of the augmented matrix of the system of linear equations,which is a zonal matrix or sparse matrix,by elementary row operation.

该算法利用方程组的增广矩阵为类带状矩阵或者稀疏矩阵这一特点，运用简单的矩阵的行初等变换，将类带状矩阵或者稀疏矩阵化成容易接受的行简化矩阵，解方程组，使小波分解与重构的过程快速准确，使从事相关工作的技术人员更容易理解和接受。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？