If the cash inflows of each year are same, the computation of NPV can be simplified by using the table of present value of annuity. 如果每年的现金流入量是相同的,利用年金现值系数表可简化净现值的计算。
Especially, it is very convenient for hydrological frequency analysis and various types of statistical computation with the table of frequency factor presented. 特别是有了离均系数表,对水文频率分析和各类统计计算是十分方便的。
Through computation, the result is in accordance with that of the large shaking table test, and it proves the accuracy of conclusion got form the test early days. 通过计算,得出了与大台试验结果相一致的计算结果,从理论上证明了前期试验工作所得结论的正确性。
Computation model and shaking table test for isolated MDOF tower structure 塔型隔震结构多质点体系计算模型及振动台试验研究
Rough set is a valid mathematical theory developed in the recent years, which has the ability to deal with imprecise, uncertain, and vague information. It is widely applied for attribute reduction and core attributes computation of consistent and inconsistent decision table. 粗糙集理论是近年来发展起来的一种有效的处理不精确、不确定、含糊信息的数学理论方法,它被广泛应用于相容和不相容决策表的属性约简和核属性计算。
The data structure can save memory efficiently and decrease the access to the cumulative frequency table a lot. The computation complexity of each operation on the table is O ( log ( N)). 该数据结构能有效地节省内存,提高对符号概率表的访问效率,对概率表的各种访问操作的算法复杂度为O(logN)。
A Practical Computation Model of Traffic OD Table 交通OD表的实用计算模型
In the rough set theory and rough-fuzzy set theory, computation of approximations and edge and attributes reduction of decision table is import part of them. 在粗糙集理论及粗糙模糊集理论中,上下近似及边界的求解与决策表属性约简是它们的核心内容。
Therefore the information meaning of RAS method of input-output table was given. Also, an iterative computation scheme was given. Finally, it is pointed out that this method can be used to test the difference between new theoretical prediction scheme and the original input-output table. 从而简单、明了地赋于投入产出表RAS方法的信息意义.我们还给出一种迭代计算方案.最后指出,该方法可以用统计方法检验新的理论预测与原投入产出表的差异性。
Results: The approach of Excel data computation, graph table, animation and simulation was used to visualize the pharmaceutic computing, namely, concept, way, process, result and data information, so that the interactive computing with the user was realized. 结果:采用Excel数据计算技术、图表技术、图形动画技术和模拟技术等能可视化地表达计算中所涉及的概念、方法、过程、结果及所产生的数据信息等,以实现人机交互的药学计算。
The method is concise and convenient for program, simulation and computation. It can be applied in many study fields, such as rocket launch dynamics, external ballistics, firing table. 该方法简洁方便,易于编制程序及模拟仿真,便于工程人员掌握,可用于火箭发射动力学、外弹道学及射表编制等方面研究,具有一定应用价值。
This paper introduces a computation method of trigonometric functions and inverse trigonometric functions in microprocessor by usr of combination binary fixed point operation with look-up table. 本文介绍了一种在微处理器中用二进制定点运算和查表相结合的方法简单实现三角函数和反三角函数运算的方法。
Simplify the coding procedure of the ESCAPE event of transform coefficients, remove a looking-up table for the maxim run range and reduce computation complexity and the memory size that the table requires. 较大简化变换块系数熵编码中逃逸事件编码过程,减少一张查找表,减少存储空间开销,降低计算复杂度。
Since the process of computation is standardized, a table computation may be adoptod. 这种方法对于变截面杆件尤为有效,由于计算程序统一,故可列表进行计算。
Computation on Table for the Solution of the Transportation Problem in Linear Programming 线性规划中关于运输问题的一种表上求解法
On the basis of reviewing the algorithms for the computation of inverse of general coefficient matrix by factor table technique, this paper presents the simplified formula of inversion for the symmetrical coefficient matrix. 文章在用一般系数矩阵的因子表求逆公式的基础上,进一步导出用对称系数矩阵的因子表简化求逆公式。
Field Operation of Computation in Word Table Resources Share Between Libraries in University Town WORD表格计算中的域操作大学域图书馆资源共享研究
The paper mainly introduces some field operations and use skills of computation in Word table. 针对Word表格中的计算问题,主要介绍与其相关的域操作与使用技巧。
Using optimum valence bond scheme which reduces the computation effort, we study systematically the properties of the critical structures ( critical points) of small clusters ( up to four atoms) of elements in the second and third row of the periodic table. 使用价键优选法,在较小的计算量下,系统地得到了二、三周期元素团簇体系(直到四原子为止)关键结构的性质。
Otherwise, the author also excellently realizes the general development of data input management program and dynamic computation within one table or tables such as accounting, synthesizing, aggregating by means of database technique for mine. 通过细致地研究矿山数据表的特性,利用数据库技术实现了矿山输入管理通用应用软件的开发,以及进行表内或多表之间数据动态分析计算的通用化编程,取得了十分显著的效果。
In the result, the area can be reduced by40% for the function computation including look-up table and polynomial calculation. 结果证明总的运算部分的面积能够减少40%,包括查找表和多项式计算两部分。
A core attributes computation algorithm of decision table was proposed in the light of an extended information view. And a from-bottom-to-top decision table attribute reduction algorithm which took the significance of the attribute as the heuristic information was designed. 从信息观的角度出发,提出了一种决策表核属性计算算法,并设计了以属性重要性为启发信息的自下而上的决策表属性约简算法。
Finally, the adjustment factor to be elastoplastic theory of the formula will be obtained, by the plastic limit load and elastic limit load ( small deflection theory of the results of thin plate) ratio determined, and has set out the elastoplastic adjustment factor computation table. 最终,得到弹塑性调整系数的理论公式,由所求得的塑性极限荷载与弹性极限荷载(薄板小挠度理论的结果)的比值来确定,并列出了弹塑性调整系数计算表。
This paper gives a fast algorithm for two-dimensional otsu adaptive threshold algorithm that overcomes the disadvantage of high computational complexity. This fast algorithm gets rid of redundance computation and yields a look-up table by iteration. 针对二维otsu自适应阈值算法计算复杂度高的缺点,通过消除二维自适应阈值算法中的冗余计算,用迭代的方式得到查询表,从而大大提高了二维阈值算法的计算速度。
To the problem that the computation load of the general heuristic algorithms of attributes reduction on the whole decision table is large, an improved algorithm based on information entropy is presented. 针对普遍的基于整个决策表的启发式属性约简算法计算量大的问题,提出改进的基于粗糙熵的属性约简算法。