I discuss idempotent, generalized inverses of general sign pattern matrix.
讨论了一般符号模式矩阵的幂等性和广义逆。
The sign pattern matrix originated some issues in the economics of the qualitative nature of the study.
符号模式矩阵最早起源于经济学中对某些问题的定性性质的研究。
In chapter two, it includes some impontant forms of sign pattern matrix inertias and research trends of inertia.
第二章介绍符号模式矩阵的惯量所具有的几类重要形式以及惯量研究的动态。
The matrix theory of sign patterns mainly studies its qualitative nature of the sign pattern which is only about its elements.
符号模式矩阵理论主要研究矩阵的仅与其符号模式有关的定性性质。
The origin of sign pattern matrix is lies in study of sign-stability and sign-solvability of linear system. It was first proposed by p.
符号模式矩阵的研究起源于研究线性系统的符号稳定性与符号可解性，是由P。
Compared with the traditional mode, computer engraving function more standardized, more convenient to create exquisite durable sign pattern.
与传统方式相比，电脑雕刻机能更规范，更方便地制作出精美耐久的标牌全迅网案。
A sign pattern S is minimally inertially arbitrary if it is inertially arbitrary but is not inertially arbitrary if any nonzero entry(or entries)of S is replaced by zero.
如果一个惯量任意符号模式的任意非零元被零取代后所得到的符号模式不是惯量任意的，那么这个惯量任意符号模式称为极小惯量任意符号模式。
In the chapter 2, the author introduce two methods that method a sign pattern matrix is spectrally arbitrary, the structure method and Nilpotent-Jacobi method with examples.
第二章通过举例介绍了两种证明符号模式矩阵是谱任意的方法——构造法和幂零-雅可比方法。
A square real matrix a is called an S2NS matrix, if every matrix with the same sign pattern as a is invertible, and the inverses of all such matrices have the same sign pattern.
一个实方阵a称为是S2NS阵，若所有与A有相同符号模式的矩阵均可逆，且它们的逆矩阵的符号模式都相同。
I analyse some conclusions of spectrum arbitrary and give two sign patterns. then I prove two classes sign pattern matrix that are spectrally arbitrary using Nilpotent-Jacobi method.
分析了谱任意的相关结论并给出了两类符号模式，然后运用幂零雅可比方法证明了两类符号模式矩阵的谱任意性。
Based on the spectral set of skew-symmetric matrix, the result that a class sign pattern matrix with zero diagonal is unique inertia was proved by using orthogonal similarity transformation.
本文基于反对称矩阵的谱集，采用正交相似变换，得到一类具有零对角的符号模式矩阵具有唯一惯量的结论。
In this paper, we mainly study the sign idempotent of sign patterns, symmetric sign patterns and their relations, especially the number of negative entries that occur in sign idempotent sign pattern.
本文主要研究了符号幂等矩阵和对称符号模式矩阵的性质及它们之间的关系，特别是符号幂等矩阵的负元素的个数。
If the pattern specifies a leading minus sign for negative input, a trailing minus sign is ignored.
如果该模式指定前置负号为负输入，后置负号将被忽略。
However, if there are striking differences between different groups of the organization, or if no clear pattern exists, this can be a sign of underlying problems.
然而，如果在组织不同部分之间有显著的不同，或者没有清楚的模式，这是一个潜在问题的信号。
When there's no explicit negative pattern, a leading minus sign is assumed in combination with the positive pattern.
没有显式的负数模式时，假设正数模式中包含前置的负号。
The plus sign indicates that the pattern enclosed in the parentheses (any character from A to Z, a to z, or 0 to 9) should occur one or more times in sequence.
加号表示围在括号中的模式（从A到Z、a到 z或0 到9 中的任何字符）可依次出现一次或多次。
A pattern that worked well in our research was, once logged in, to replace the sign-in link with the user's name, id, or email address, followed by a sign-out link.
在我们的研究中，有一个模式很可行。这个模式就是：一旦登录，就把登录链接更换成用户名、id、或是email地址，接着后边放上一个退出的链接。
This image creates specific pattern of sociality and thus becomes consumer's image sign.
这种形象创造出了明确的社会交际范式，成为消费者形象标志。
This paper discusses the basic changing pattern of unit shape and basic form of unit shape design, illustrates by examples the application in sign design of changing form of unit shape.
本文讨论了单元形的基本变形方式和单元形设计的基本形式，列举和分析了单元形变化形式在标志设计中的应用。
To reveal the pattern the amount of drivers' memory of traffic sign information changes over time could shed bright light on the design and installation of ur-ban road traffic signs.
研究驾驶人交通标志信息记忆量随时间的变化规律，能够为城市道路交通标志设计及实施应用提供有力支撑。
If you could only see the planetary pattern in the sky in mid-January! Venus, Pluto, Mercury, the Sun, and new moon will all be in your sign.
一月中旬如果你可以单只看到天上星星排列图，金星、冥王星、水星、太阳与新月将都出现在你星座。
The first sign of male pattern baldness brings a man face-to-follicle with a skimpy aspect of his future.
男性秃顶的第一个征兆就是让他看到自己…
When there is an opportunity, they make pattern 2 and 3 in combination, which means fighting. The sign means "Do not come any closer."
如果有机会，它们还会把第二种方式和第三种方式组合起来用，这就是打架的前兆，好像在说“敢再靠近一点儿试试！”
This is a good sign because the market has now made a double bottom "w" pattern.
这是一个好的兆头，因为市场已经作出了双层底“W”的模式。
The CT features of Xanthogranulomatous pyelonephritis(XGP)include multiple, rounded, low density areas with enhancing rings arranged in a hydronephrotic pattern known as bear paw sign.
黄色肉芽肿性肾盂肾炎（XGP）的特征是CT示群集的类圆形的低密度区以及环形增强带形成“熊掌征”；
The CT features of Xanthogranulomatous pyelonephritis(XGP)include multiple, rounded, low density areas with enhancing rings arranged in a hydronephrotic pattern known as bear paw sign.
黄色肉芽肿性肾盂肾炎（XGP）的特征是CT示群集的类圆形的低密度区以及环形增强带形成“熊掌征”；
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