查询词典 algebra of events

The flourishing of algebra in the medieval Islamic world and in Renaissance Europe was an outgrowth of the enormous simplification of computation through decimal notation .

该计数法的一个要点是对0与其它基数一视同仁。

From the point of algebra, ablock decomposition formula for coefficient matrix of discrete Hartley transform isgiven, from which a new fast DHT recursive algorithm is derived.

本文首先从代数角度出发，给出离散Hartley变换系数阵的一种块分解式，由此导出DHT的一种新的快速递归算法。

In this paper,the concept of generalized Jordan derivable mappings at zero point on von Neumann algebra is introduced.The following conclusion is reached.

在文[4]中，朱军和熊昌萍引入了零点广义可导映射的概念，而导子与Jordan导子的关系十分密切。

In chapterⅡ, Firstly, we research the derivable mappings at unit and the anti-derivable mappings at zero point on Von Neumann algebra M.

证明了在单位可导和在单位反可导的范数连续的线性映射是M上的内导子，在零点反可导的范数连续的线性映射是M上的广义内导子。

An algorithm for transformation of calculus to algebra was derived, and the correctness of transformation was proved.

代数转换同时也体现了对象代数相对于对象演算的完备性。

The derived relational algebra operators are widely used in the relational database query languages.

关系代数的派生算子在关系数据库查询语言中得到了广泛应用。

My friend and I did some arithmetic, some algebra, derived the general formula for the differential at a point—all stuff he had had in the course.

我和我的朋友做了些算术和代数，得到了某一点的微分公式——这些都是他上课学过的。

At present, frequency-wavenumber domain expression has been derived by Lie algebra integral and exponential mapping, and we need to research the method of transform from wavenumber domain to space domain.

目前，通过李代数积分和指数映射的研究，已经导出频率波数域表达式，需要研究波数域到空间域变换的实现方式。

In the fourth chapter, using algebraic method, we prove that tubular mutations are auto equivalences of the derived category of a derived tubular algebra, and apply this method to the case of tame concealed algebras, which generalizes a result of Meltzer .

第四章我们用纯代数的方法证明：tubular mutation是tubular型标准代数的导出范畴的自等价，并把该方法应用到tame concealed代数，从而推广Meltzer的结果。

Diagonalization of square matrix is a difficulty learning problem in linear algebra and it also is an important character for square matrix.

对方阵可对角化的充要条件的理解，一直是线性代数学习中的一个困难问题。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48