1) method of variable substitution
变量代换法
1.
With proper method of variable substitution, the soluble method to two kinds of inegrable equation of Riccati form is found, and the general integral expressions are given.
利用适当的变量代换法 ,找到了两类可积的Riccati型方程的求解方法 ,并给出了通积分的表达式。
2) variable substitution
变量代换
1.
With variable substitution,several kinds of linear differential equations are solved and several sufficient and necessary conditions are obtained.
借助于变量代换 ,求解几类线性微分方程 ,并得到了几个求解的充分必要条件。
2.
The method searching for solutions to first order non liner equation with variable substitution and integral gene, and the method searching for solutions to all the integral with integral gene were discussed and expounded in this paper.
阐述了变量代换法和积分因子法求解一阶非线性方程和由积分因子求通积分的方
3.
This paper uses variable substitution to discuss the methods of solving three integral kinds of function-coefficient differential equations of the third order.
文章利用变量代换讨论了3种三阶变系数常微分方程的解法。
3) equal replacement method
等量代换法
1.
The paper introduced CASIO fx-4800 calculator and liquid,plastic limit results treatment by equal replacement method for simple,quick and correct results.
介绍了CASIOfx-4800计算器及等量代换法进行液塑限结果处理,可以简便、快速、准确地得出结果。
4) cyclic variable method
变量轮换法
1.
Under the background of DATIAN doub- le-arch tunnel in construction of the Tonghuang Highway,cyclic variable method is used to optimize the parameters of SVM based on SVM algorithm in order to present the nonlinear relation between the data,meanwhile the nonlinear model for displacement is established.
以铜黄高速公路大田双连拱隧道施工为背景,在支持向量机算法的基础上,采用变量轮换法对其参数进行优化处理,从而呈现了监测数据复杂非线性特征并建立隧道位移监测时间序列非线性模型。
2.
Compared to other widely used direct search method,random search methods and cyclic variable method have the advantages of simpleness and clear,easily programmed and smple implementation,especially when the gradient is burdensome or impossible to calculate.
与其它直接处理法相比 ,约束随机搜索方向法和变量轮换法的算法具有简单明了、编程简单、容易实现等特点 ,特别适用于目标函数的梯度计算复杂或不能计算的场合。
3.
The cyclic variable method is used to optimize parameters of SVM so as to establish the nonlinear time series model.
采用变量轮换法对支持向量机(SVM)参数进行优化处理,结合时间序列分析理论,建立起隧道围岩变形时间序列非线性模型,并以此对隧道围岩变形进行预测。
5) method of variation replacement
变量替换法
1.
It is offered Euler differential equations depending on a parameter λ,and given the general solution formula express of them by method of variation replacement,method of variation position transformation,method of linearization,and method of reduction of order.
提出含参数λ的二阶齐次Euler微分方程,并借助变量替换法、线性化法、降阶法、交换变量位置法给出几类含参数λ的二阶齐次Euler型微分方程的求解公式,简化其求解过程。
2.
Two types of new Abel differential equation are structured by method of variation replacement, variation position transformation and compound function derivation law.
借助变量替换法、交换变量位置法及复合函数求导法则,构造出两类新的Abel型微分方程,论证它们的可积性,提供可积的判据,从而推广有关文献的结论,扩大微分方程的可积范围。
6) variable substitution
变量替换法
1.
Application of "variable substitution" in higher mathematics;
高等数学中“变量替换法”应用探讨
补充资料：变量与变量值
可变的数量标志和所有的统计指标称作变量。变量的数值表现称作
变量值，即标志值或指标值。变量与变量值不能误用。
变量值，即标志值或指标值。变量与变量值不能误用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条