共轭方向

The examples indicate that the algorithm has strong pertinence and high efficiency, hi the discrete variable optimization, the problem is solved in the relative quotient method On the base of analyzing the relative quotient method, the conjugate gradient direction is used to modify the old search directions, the iterative matrix of the algorithm, and the method to resolve the discrete variable optimization, the relative conjugate difference quotient algorithm is presented.

离散变量优化算法是从相对差商法开始的，在详细分析相对差上法的基础上，用共轭梯度方向修正原有的搜索方向，并对算法的迭代矩阵进行相关的修改，最终形成一种用于求解离散变量优化问题的RCDQ法。

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。

With the modified method, the focal field of WSRT telescope was computed. Based on the result, the dense focal plane array was designed for the telescope. The weights of focal plane array were given by the conjugate field method and the far fields of WSRT were computed.

采用改进的算法计算了WSRT望远镜的焦面场，并根据计算结果设计了WSRT望远镜的致密焦面阵结构；用共轭匹配法对阵列单元加权、计算相应的远场方向图，并与采用单个馈源时的远场方向图作比较。

It has been deduced that the search direction remains the same but that the step length decreases in optimizing the improved cost function with the conjugate gradient algorithm from the gradient of the cost function that the FIR filter apporaches the contrary point spread function more, and that the estimated image is closer to the original one.

从代价函数的梯度入手推导出共轭梯度算法，其搜索方向保持不变而搜索步长变小，使滤波系数更加逼近于点扩展函数逆算子，从而使估计图像与原始图像更加接近。

Now, the rapid development of computer and occurrence of a great deal of large-scale optimization problems make the researches in conjugate gradient method revive.

近年来，随着计算机的飞速发展和实际问题中大规模优化问题的涌现，寻找快速有效的共轭梯度法成为了学者们研究的热门方向之一。

Each search direction is generated in the subspace spanned by two conjugate directions, and can be guaranteed descent.

每个搜索方向在由2个共轭向量张成的子空间中生成，并保证了搜索方向的下降性。

Theory; the spatial meshing theory includes comparative motion, comparative differential and conjugative curved surface; and the application of meshing theory includes gear drive and worm drive. The spatial meshing theory is the main part of the course.

课程的重点讲解内容有曲线的参数方程、切线、法面、弧长、曲率、空间曲线的基本公式、挠率及平面曲线的基本公式等；曲面第一和第二基本公式，法曲率、主方向和主曲率、欧拉公式、短程挠率、欧拉公式和贝特朗公式推广、相对法曲率和相对短程挠率等；刚体的绝对和相对运动速度、相对微分和绝对微分、相对速度和相对微分、轨迹曲面的法曲率和短程挠率等；空间共轭曲面的啮合条件、诱导法曲率、两类界限点、等距共轭曲面、空间啮合的二次接触原理等；蜗杆传动的数学模型建立及啮合特性分析方法等。

The Sulzer sley drive uses several pairs of matched cams, spaced at intervals across the width of the sley.

苏尔寿片梭织机的筘座驱动装置使用几对共轭凸轮，共轭凸轮沿筘座的宽度方向相同排列。

The Sulzer sley drive uses several pairs of matched cam s, spaced at intervals across the width of the sley.

苏尔寿片梭织机的筘座驱动装置使用几对共轭凸轮，共轭凸轮沿筘座的宽度方向相同排列。

The Sulzer sley drive uses everal pairs of matched cams, spaced at intervals across the width of the sley.

苏尔寿片梭织机的筘座驱动装置使用几对共轭凸轮，共轭凸轮沿筘座的宽度方向相同排列。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。