counterexample造句
例句与造句
- The proof is easy, but the counterexamples are hard .
证明是容易的，但反例则甚难。 - A brief discussion on the function of counterexample in discrete mathematics teaching
谈反例在离散数学教学中的作用 - A counterexample on the existence of positive periodic solutions for two - species predator - prey diffusive systems
食饵系统正周期解存在性的一个反例 - In a sense this program is a counterexample , in that it is never useful as a filter
从某种意义上，这个程序是一个可执行文件，因为对于作为过滤器来说，它决不会有任何用处。 - There is an old saying : large wealth of a family can not last longer than three generations . is there any counterexample in the history
有句话是“富不过三代” 。历史上有没有富豪延续超过三代的例子？ - It's difficult to find counterexample in a sentence. 用counterexample造句挺难的
- Another example is about lu qikeng conjecture : in order to give a counterexample to the lu qikeng conjecture , an explicit formula for the bergman kernel function is used in ref . [ bo ]
在给陆启铿猜想以反例时，也经常要用到bergman核函数的显表达式[ bo ] 。 - More detailed researches are focused on discussing the rationality and restrictive of df problem in this paper and the typical exemplification and counterexample are presented
本文针对描述函数法适用于该问题的合理性及其局限性作了较为深入的分析，并给出了典型的例证和反例加以说明。 - In addition , a counterexample is constructed to show that the characterization and the related results do not hold for the non - archimedean riesz space r # with the lexicographical ordering
同时构造一个反例说明，对于r ~ n按字典顺序做成的非阿基米德riesz空间的情形，这个刻画及相应结果并不成立。 - Then , after the introduction and analysis of algorithm asrai we show a counterexample of this algorithm and present a revised algorithm chen1 to eliminate the disadvantage of algorithm asrai
然后，通过对asrai算法的介绍与分析，举出asrai算法的反例，提出增量算法1以用于克服asrai算法存在的缺点。 - Solvable conditions for electrostatic problems using gauss ' s law with direct integral method are presented . non - consummate expressions in the ordinary textbooks are appointed with counterexamples
摘要给出应用高斯定理由直接积分法求解静电场问题时的可解性条件，用反例说明常见教科书中对此问题的表述是不完备的。 - The great difficulty in searching for counterexamples is that the number of potential scenarios in a software design of even moderate complexity is typically vast , but only a tiny proportion correspond to counterexamples
寻找反例的困难在于，即使只是普通复杂的软体设计，通常还是具有大量的可能情节，但其中反例占的比例却很低。 - Some appropriate counterexamples are rather necessary for helping students further understanding of relative concepts , theory , formula and principles in mathematics education . and they appear to be effective solutions
摘要在数学教学中，为了让学生深入地理解有关的概念、定理，牢记公式和法则，适当地举一些反例是十分有效的一种方法。 - Above analysis indicates that algorithm chen1 can only properly handle a portion of counterexamples of algorithm asrai . therefore , we present another incremental algorithm chen2 . empirical results show that algorithm chen2 works quite well
通过以上的分析表明增量算法1只能处理部分的反例，为此提出了增量算法2 ，实验结果表明改进效果良好。 - Yutong gives a counterexample , due to its less history problem , serious accumulated , so it can recombine and expand in chongqing and lanzhou , and won the fist half of year sale throne with the predominance that kinglong separated and the total amount decreased
纵观国内客车生产企业所生产的各类车型， 39座客车的成熟产品并不太多见，而由亚星奔驰有限公司生产的ybl6100h型高一级系列客车已呈异军突起之势。 - In this thesis , we study some open problems and conjectures about the linear complementarity problem . it consists of the next three aspects : firstly , we study murthys " open problem whether the augmented matrix is a q0 - matrix for an arbitary square matrix a , provide an affirmable answer to this problem , obtain the augmented matrix of a sufficient matrix is a sufficient matrix and prove the graves algorithm can be used to solve linear complementarity problem with bisymmetry po - matrices ; secondly , we study murthys " conjecture about positive semidefinite matrices and provide some sufficient conditions such that a matrix is a positive semidefinite matrix , we also study pang ' s conjecture , obtain two conditions when r0 - matrices and q - matrices are equivelent and some properties about e0 q - matrices ; lastly , we give a counterexample to prove danao ' s conjecture that if a is a po - matrix , a e " a p1 * is false , point out some mistakes of murthys in [ 20 ] , obtain when n = 2 or 3 , a e " a p1 * , i . e . the condition of theorem 3 . 2 of [ 25 ] that a p0 can be deleted and obtain a e " a is an almost e - matrix if a is a co - matrix or column sufficient matrix
本文分为三个部分，主要研究了线性互补问题的几个相关的公开问题以及猜想： ( 1 )研究了murthy等在[ 2 ]中提出的公开问题，即对任意的矩阵a ，其扩充矩阵是否为q _ 0 -矩阵，给出了肯定的回答，得到充分矩阵的扩充矩阵是充分矩阵，并讨论了graves算法，证明了若a是双对称的p _ 0 -矩阵时， lcp ( q ， a )可由graves算法给出； ( 2 )研究了murthy等在[ 6 ]中提出关于半正定矩阵的猜想，给出了半正定矩阵的一些充分条件，并研究了pang ~ -猜想，得到了只r _ 0 -矩阵与q -矩阵的二个等价条件，以及e _ 0 q -矩阵的一些性质； ( 3 )研究了danao在[ 25 ]中提出的danao猜想，即，若a为p _ 0 -矩阵，则，我们给出了反例证明了此猜想当n 4时不成立，指出了murthy等在[ 20 ]中的一些错误，得到n = 2 ， 3时，即[ 25 ]中定理3 . 2中a p _ 0的条件可以去掉。
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