查询词典 conjugate complex

When using restricted maximum likelihood for parameter estimation, we need to get the minimum of a function. But if the expression of the function is complicated, it is difficult to obtain the derivatives of the function. We introduced conjugate direction method which avoided the derivatives.

在用限制极大似然法估计参数时，需解决函数的极小化问题，而当函数的表达式较为复杂时，将难以获得其偏导数，本文给出的共轭方向法，避开了求导问题。

The ABS algorithms are utilized in modifying the Zangwill conjugate direction method for nqnconstrained optimization problems.

将ABS方法与Zangwill方法相结合。构造出一种有限步收敛的求解具有线性约束的二次规划问题的共轭方向法－LAZ法

Mathematical model has been dealt with by punish function search method. Hooke-Jeeves modular vector search method and Powell conjugate direction search method have been adopted and modified.

利用"惩罚函数"法进行了数学模型的处理，采用并改进了Hooke-Jeeves的模矢搜索法及Powell的共轭方向法，还提出一种随机搜索法。

In terms of the minimum question of a positive definite quadratic function,a set of Newton directions in minimum points derived with an accurate single dimensional search are used to produce a set of conjugate direction ,and a proof of convergence is presented.

对正定二次函数极小问题，利用精确一维搜索所得极小点处的牛顿方向来生成一组共轭方向，并给出收敛性证明

First by introducing the sufficient decrease condition,the Wolfe condition and the Goldstein condition with their strong local search capabilities, do the step length selection. The search direction is using conjugate gradient direction.

通过引入经典优化中局部搜索能力较强的充分下降条件、Wolfe条件、Goldstein条件确定步长，而搜索方向采用共轭梯度方向进行局部搜索，由此得到一类高效的非精确的混合遗传算法。

The main objective of the course in conjugate element theory should be to develop in the engineering student the ability to Vector, differential geometry, gear theory.

在啮合元件理论课程的主要目的使工程的学生对向量微分几合及齿轮理论有所认识并用於实务设计上。

The parallel algorithm is presented for solving the conjugate gradient method with element based domain decomposition. Model of dam structural analysis problem is solved.

提出了基于单元区域分解的共轭梯度并行算法，对坝体结构进行求解，对其并行性能进行分析。

Characteristics of conflict are analyzed, using divergent, expansive, correlative and implicative natures of matter element and conjugate analysis in extenics, conflict analysis method and policies generation method for conflict settlement are presented.

分析了不正常航班中冲突的特点，利用可拓学中的共轭分析理论和物元的发散性、可扩性、相关性、蕴含性关系，对解决旅客纠纷提供了一种有效的分析手段和策略生成方法。

A boundary identification problem, i.e., inverse geometry problem of two-dimensional heat conduction was solved by using boundary element method and conjugate gradient method-based inverse algorithm.

采用基于边界元法和共轭梯度法的反演算法求解二维导热边界识别问题，即几何反问题。

A boundary identification problem of two-dimensional unsteady heat conduction was solved by using dual reciprocity boundary element method and conjugate gradient method-based inverse algorithm.

采用基于双倒易边界元法和共轭梯度法的反演算法求解二维非稳态导热边界识别问题。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？