查询词典 sparse matrix

Based on the method of matrix transformation used in the compound material mechanics, the anisotropic flexibility matrix of the anisotropic sand with a certain stress state is transformed to be an isotopic one of a certain isotropic reference material with the corresponding stress state, and a corresponding stress matrix is obtained simultaneously.

借鉴复合材料力学中矩阵转换的数学方法，将各向异性砂样的柔度矩阵转化为各向同性等效参考砂的柔度矩阵，同时导出与其相当的应力状态的表达式，以使对各向异性岩土材料的分析可转换为对各向同性状态进行分析，由此可将以前基于各向同性假设的强度条件能够用于各向异性土体。

Using a planar target as intermedium, an optimized object function of the position and orientation transformation matrix of the sensor is established; and the matrix, namely registration matrix, is derived from the feature points on the planar target.

采用一个平面靶标作为中介，建立了传感器位姿变换矩阵的优化目标函数，根据靶标上多个特征点求解出该矩阵，即拼接矩阵。

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。

Matrix decomposition meams the summation of dividing matrix into several pieces of matrix or product, it is the important in which solved method of some linear algebras problem, its research is significant.

摘要矩阵分解是将一矩阵分解为若干个矩阵的和或乘积的形式，它是解决某些线性代数问题的重要方法，它的研究具有重大的意义。

The model of layout and design for product platform is established which including the layout matrix for product series, the function module matrix and the structure module matrix.

建立了产品平台规划与设计模型，该模型包括产品系列规划矩阵、功能模块矩阵及结构模块矩阵。

To do so, Neo re-enters the Matrix. In his search for truth, he visits the Oracle the late Gloria Foster (news, protected by the fighter Seraph; rescues the Keymaker, who knows the system's weakness; encounters new foes in Merovingian, a Matrix political heavyweight, his duplicitous trophy wife, Persephone Monica Bellucci (news, and the Twins (English black-belt brothers Neil and Adrian Rayment), a silver-clad albino duo in dreadlocks; and finally encounters the Architect, the godlike creator of the Matrix.

为了了解这个，neo返回了矩阵；在他寻求真相的过程中，他拜访了先知，被战斗天使所保护的；救了持有钥匙的人，他知道矩阵系统的弱点；遇到了新的角色Merovingian，矩阵的政治上很有实力的人；他的妻子Persephone和新的双胞胎，银色的衣服；最终将遭遇到技师，象神一样的矩阵制造者。

This invention relates to MIMO test method in a multi-user MIMO radio communication system including: estimating the channel matrixes of all users at the base station, computing an orthogonal projecting matrix M of the interference matrix of each user and transmitting M to each user periodically, receiving data sent by the base station at the user end and getting the orthogonal projecting matrix M from the received data, transforming the MIMO test of a desired user to the minimum value of a K-element secondary convex function, in which, K expresses the number of sending antennas and getting estimation of the test data by a ball test method.

一种多用户多输入多输出无线通信系统中的MIMO检测方法，包括步骤：在基站估计所有用户的信道矩阵；计算每个用户的干扰用户矩阵的正交投影矩阵M，并将每个用户的正交投影矩阵M定期发送给每个用户；在用户端接收基站发送的数据，并从接收的数据中得到正交投影矩阵M；利用正交投影矩阵M将期望用户的MIMO检测转化为K元二次凸函数的极小值，其中K表示对期望用户而言，发送天线的个数；利用球检测的方法，得到检测数据的估计。

Means of non -singular determinant is not equal to 0, the matrix must be non - degenerate square matrix is full rank is, the matrix is not necessarily ...

非奇异的意思是行列式不等于0，矩阵一定是方阵非退化是矩阵是满秩的，矩阵不一定是。。。

In chapter three, in order to distinct N 0?matrices that defined by deferent references, we will use the following notions. A matrix is called N_0~2-matrix if the matrix is nonpositive and its all-principal minors are nonpositive.

不可约矩阵Perron余的Perron向量同原矩阵Perron向量有着继承性，另外非负矩阵的Perron余也可用于Perron根的估计，因此非负矩阵的Perron余的研究有着重要的理论价值。

To avoid the SSS problem, a nonsingular within-class scatter matrix is constructed directly using the original two dimensional image matrix, and DLDA method is used to obtaining the feature matrix in this new algorithm.

该算法在克服小样本问题的同时，不会丢失图像中的有用信息，而且可以避免采用奇异值分解导致的无法精确计算特征向量的问题。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我