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- The square matrix is called a diagonal matrix. 该方矩阵称为对角矩阵。
- This article,through the analysis and reflections on the digital image,proposes one way of encryption suitable for the square matrix digital image. 本文通过对数字图像的分析和思考,提出一种适合于方阵数字图像的一种加密方式。
- By using conclusions of matrix rank,a necessary and sufficient condition of diagonalization for square matrix is given. 本文利用矩阵秩的相关结论, 给出并证明了方阵可对角化的一个充要条件。
- A square matrix of n rows and columns,cells contain n different symbols so arranged that no symbol occurs more than once in any row or column. 由N组行列组成的正方形矩阵，包含N个不同符号且每个符号都在任何一行和一列中只出现一次的单元格。
- Moreover, some general conclusions about the boundedness of norms were given for the case that the coefficients of the equations form a square matrix. 对于方程组系数是方阵的情形，由范数有界性给出了一般性结论。
- If a square matrix has a left inverse or a right inverse then it is invertible (seeinvertible matrixfor other equivalent statements). 矩阵是半正定当且仅当其每一个特征值大于或等于零。
- This paper deals with the positive definite real square matrices. 本文研究一般实方阵的正定性,给出了方阵正定的一些充分必要条件。
- See invertible matrix for more.More generally, a square matrix over a commutative ring R is invertible if and only if its determinant is invertible in R. 更一般地，一元素在一可交换环R内的方阵是可逆的若且唯若其行列式在R是可逆的。
- This appraoch is based on the modelling of the principal component analysis for the prior L square matrix of period extrapolation matrix Of mean generating function only,with a few principal components inclouding main information of temporal sequence. 且仅对均生函数外延矩阵的前L阶方阵作主分量分析，用数目较少又包含主要信息量的主分量因子对时间序列建模。
- A square matrix of numbers or other elements having a value determined by a rule of combination for the elements and used especially in solving certain classes of simultaneous equations. 行列式由数或别的元素组成的方阵，其值由某种这些元素的组合规律决定，它通常用于求解某些类型的联立方程。
- The sufficient and necessary conditions for the complex square matrix to be a generalzed diagonally dominant matrices are given in the paper. 给出了复方阵为广义对角占优阵的一个充要条件，同时也给出了复方阵为广义对角占优阵的判别方法。
- I hit him fair and square on the jaw. 我不偏不倚打中他的下巴。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- a square matrix whose determinant is zero. 决定因素是零的正方形矩阵。
- To solve the characteristic polynomial and the eigenvalues of square matrices with higher order normally is not an easy way. 摘要高阶方阵的特征多项式以及特征值的求得，在计算上往往有一定的难度。
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- a square matrix whose determinant is not zero. 决定因素不为零的正方形矩阵。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- Then the methods for solving the characteristic polynomial and the eigenvalues of square matrices using similar transactions are showed, and several examples are given. 然后指出了利用相似变换在求方阵的特征多项式以及特征值时的方法，并列举若干实例给予了说明。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
