排列数
- 网络number of arrangement;number of permutation;permutation
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无穷可重集的一个有限制排列数
A Restricted Permutation Number of Infinite Multi-Set
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研究一类特殊的可重复排列性质,建立了一般情形下求这类排列数的递推公式,导出了一些特殊情形下的具体计算公式。
A sort of3-element permutation with repetitions allowed is studied , and a recurrence relation in general condition is found .
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计算斐波那契数列和错位排列数的增广Petri网模型
Two Extended Petri Net Models For Computing The Fibonacci Numbers And The Error Position Numbers
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给出Bernoulli数和错位排列数的概率解释,利用概率论方法得到相应的递推公式。
In this paper , the probabilistic interpretations of Bernoulli number and the number of derangements are given , and their recurrence relation formulae are obtained by using the probabilistic method .
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含排列数与二项式系数的线性微分方程
Solution of the linear differential equation containing arrangement number and binomial coefficient
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基于二项式系数与排列数的交错级数型欧拉方程
Euler Equation Based on Alternating Series Number Pattern of Binomial Coefficient and Arrangement Number
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可重复排列数的序数
Ordinal of Being Duplicated Permutable Number
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这样通过量子计算机选排列数,利用对偶性,对称性,守恒性等等性质,他们根本不需担心怡飞姑娘能飞到哪里去。
This election ordered number through quantum computer , using duality , symmetry , conservation of nature , etc. , they do not have to worry the Overfly girl could fly to where to go .
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巴西橡胶树是天然橡胶的主要来源,而乳管是橡胶合成与贮存胶乳的器官,乳管的分化和排列数是影响橡胶产量的主要因素。
Hevea brasiliensis is the only source of commercial natural rubber . Laticifer is the main place of biosynthesis and accumulation of latex in rubber tree . Differentiation and amount of laticifer are the key factors which affect the production of rubber .
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关于排列逆序数的若干公式
Some Formulas about the Number of Inversions of a Permutation
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当道路由于事故堵塞时,被堵的交通车辆排列长达数英里。
Traffic tailed back for many miles when the road was blocked by an accident .
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并引入协调效率,排列逆序数等概念,为模型的协调效果评价提供了量化指标。
Some concepts including cooperation efficiency and sequence inversions are introduced to provide the quantified index for the evaluation of the coordination result .
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本文给出九阶幻方一个新的规律而又便于记忆的填法-映射法,得出和三阶幻方同态的九阶幻方的不同排列个数为2×8~(10)
This article gives a method of filling in & Mapping , which shows a new law of ninth order 's magic square and is easy to remember .
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存在一个可以排列的连接数限制,在该连接数之后,忽略任何进一步的连接请求。
There is a limit on the number of connections that can be queued up , after which any further connection requests are ignored .
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结果表明不同性状的边际效应大小的排列为分枝数>产量构成性状(单株荚数、粒数)、产量>茎杆重>百粒重>粒茎比。
The results showed that the sequence of border effect was : numbers of branches > yield component characters ( pods per plant and number of seeds ) and yield > stem height > heigh per 100 seeds > seed stem ratio .
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在权衡各项处理要求和工作效率情况下,确定了每一排列片线数、满覆盖测线长度、面元尺度、纵横向覆盖次数及排列类型。
After the balance between various processing demands and work efficiency , the numbers of line in each patch , the length of line for full fold , bin size , folds both in in line and cross line direction and the pattern of spread are defined .
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因此在井网部署方面要确定油、水、气井的排列方式、井数的多少以及井距的大小。
Therefore , the main tasks in the well network deployment are to determine the placement ways of oil , water , gas wells , their numbers and spacing size .
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本文提出了k均匀排列的概念,讨论了它的一些性质,并求出了几个特殊的k均匀排列数。
In this paper , k-regular permutations and their properties are shown and the numbers of k-regular permutations for a few special cases are given .