查询词典 approximation calculus

Five years later, Boole published Treatise on Differential Equations, followed by Treaties on the Calculus of Finite Differences.

五年后， Boole 在微分方程上出版了论文，在限定差别的微积分方面由条约跟随

For raising the precision of solving infiltration in unsaturated soil, by reviewing advantage, and disadvages of existing methods, based on the transformation of Richards equation, a finite calculus of differences by advancing front self-adaptive grid for solving infiltration in unsaturated soil is built.

为提高非饱和土壤渗透求解的精度，综合考察现存方法的优缺点，通过理论研究，基于Richards方程变换，建立了非饱和土壤渗透求解的向前探索自适应网格有限差分法。

The whole calculus of probability was discovered by mathematicians whose real interest was the rationalization of gambling.

发现了概率论的那些数学家，真正的兴趣在于构建关于赌博的理论。

Assuming only a basic knowledge of probability and calculus, it covers the material in a mathematically rigorous and complete way at a level accessible to second or third year undergraduate students.

假定只有一个基本知识的概率和演算，它涵盖材料，在理论上严格和彻底的方式在一定的水平进入第二或第三个年头本科生。

We shall have occasion to deal with geometry, both Euclidean and non-Euclidean, with arithmetic, algebra, analytic geometry, the theory of irrationals, set-theory, calculus of probability, and mathematical logic.

我们将与算术，代数，解析几何机会几何处理，包括欧几里德和非欧几里德，是无理的理论，集理论，概率演算，和数学逻辑。

Systematically analysing the method on the failure approach of patten recognition of the flood control hydro-project system, combining the social economical efficiency of the flood control system"s invalidation losses, the paper provides the concept "flood disaster risk " and constitutes the failure analysis approach of patten recognition system on the base of the flood progress. Combining with the subsystem functions and the failure probabilistic analysis of the hydro structure, the paper discusses the main failure approach of patten recognition and calculus of failure probability, calculates flood control hydro-project"s total risk.

3系统分析了防洪工程系统失效模式识别的方法，结合防洪抗灾系统失效损失的社会经济性，引入洪灾风险概念，建立了基于洪水过程的系统失效模式识别体系，结合各水工结构子系统功能和失效概率分析，讨论了主要失效模式识别和失效概率计算，对防洪工程系统总风险进行了计算。

Optimal control theory is a generalization of the calculus of variations.

变分法寻求优化的目标界定了许多时间点，考虑如何目标函数的变化，如果有一个小变化，选择的道路。

As a branch of mathematics, the birth of calculus of variations is the phenomenon results of many of the world's scientists continue to explore the reality.

变分法作为数学的一个分支，它的诞生是科学家对现实世界许多现象不断探索的结果。

Chapter 7 considers application of variation methods to systems with infinite degrees of freedom, and Chapter 8 deals with direct methods in the calculus of variations.

第7章认为，变异的系统方法的应用与自由无限度，和第8章在变分法直接的方法处理。

His thesis dealt with the topic of the calculus of variations.

后来他又到芝加哥大学攻读博士学位，于1937年他33岁时终于取得了博士学位。

Go to your desktop and right click in a blank space.

请到您的桌面，然后右击一个空白。

Tara appears in Buddhism, Jainism, and particularly, Tibetan Lamaism, as a complex array of manifestations: goddess of ascetism and mysticism, mother creator, protectress of all humans as they cross the sea of life.

度母出现在佛教，耆那教里面，尤其是西藏的喇嘛教，作为一系列的陈列阵容；神秘的女神，创世之母，人类横过生命之海洋的女性保护者。