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- backward difference quotient 后向差商
- The relative difference quotient algorithm (RDQA) is introduced and advanced for the optimum design. 优化方法采用相对差商法,并作了若干改进。
- Relative difference quotient algorithm is strong in local search, while genetic algorithm with a parallel operation is highly effective in global search. 相对差商算法局部搜索能力强,而遗传算法具有较强的全局搜索性,发挥两者的优势,提出组合遗传算法。
- Describe the pressure variation of node in grid with bilinear interpolating function.These equations are dispersed in time by using backward difference method. 用双线性函数描述网格结点的压力变化,在时间上用向后差分法进行离散。
- A hybrid algorithm for topology optimization of trusses with discrete variables is developed which combines relative difference quotient algorithm with chaos optimization. 将相对差商法和混沌优化结合起来,形成求解离散变量桁架结构拓扑优化设计的混合算法。
- The paper studys on difference quotient ratio sequence distribution of order statistics difference about uniform distribution, exponential population and Normal population. 摘要本文研究了均匀分布、指数分布和正态分布的顺序统计量的差商序列概率分布。
- Combinatorial difference quotient method 组合差商法
- combination difference quotient method 组合差商法
- relative difference quotient algorithm 相对差商法
- arithmetic average difference quotient 算数均差商
- He lined out for home without a backward glance. 他头也不回,急忙往家里走去。
- Whether it rains or not makes no difference to me. 下不下雨对我来说都一样。
- backward different approximation method 隐式差分法
- By using nonstandard analysis, we define new generalized functions as discrete functions, and their derivatives are defined as difference quotients. 在非标准分析框架下,用离散函数定义新广义函数,用差商定义其导数。
- This part of the country is still backward. 这个国家的这个地区仍很落后。
- The Properties of Generalized Difference Quotient and Applications 一类广义差商及其应用
- In some cities housing conditions went backward. 某些城市的住房条件越来越差。
- The teacher was patient with backward children. 那位老师对迟钝的学童十分耐心。
- Non-central difference quotient convergence and differential 非中心差商收敛性与可微性
- He looked backward over his shoulder. 他回头向后看。