1) logarithm difference method
对数微分法
1.
A new method which is called logarithm difference method,is proposed to extract iso clinice effectively from photoelastic experiments.
提出一种对数微分法,有效地解决了光弹性实验中等倾线的提取问题,不仅可消除平面偏振光场中等差线对等倾线的影响,而且能高精度地提取任意复杂受力模型等倾线。
2) logarithmic differential
对数微分
1.
This paper proves the necessary and sufficient condition and relations between the logarithmic differential and the common differential, the formulas of logarithmic differential are also proved in solving product, quotient, power, radical and composition of functions in the real domain.
证明了对数微分与 (常义 )微分的关系及充要条件 ,证明了对数微分在实数域内计算函数乘、除、乘方、开方及复合函数的公式 ,给出了对数微分近似计算公式 ,并与经典的近似计算公式作了比
2.
The paper introduces the principle and advantages of accounting relative error with logarithmic differential attribute.
本文介绍了利用对数微分性质计算相对误差的机理和优点。
3) method of relative differential/difference
相对微分(差分)法
4) relative differential/difference searching approach
相对微分/差分法
1.
Sufficient conditions for stationary points of nonlinear programmings with relative differential/difference searching approach;
相对微分/差分法搜索非线性规划极值点的充分条件
5) Numerical differentiation
数值微分法
1.
Calculation of ray trace in bending fiber with numerical differentiation
数值微分法求解光纤弯曲时的光线轨迹
2.
The first and second derivatives of the coordinates of a cam profile are calculated using numerical differentiation method,and substituted with curvature radius formulas in calculus,thus obtaining its curvature radius.
应用数值微分法计算凸轮廓线坐标的一、二阶导数,代入微积分学中曲率半径公式,即得凸轮廓线的曲率半径。
6) DDA
数值微分法
1.
Based on studying the way of polar moment of inertia,a new method of major and minor axis detecting by DDA was provided.
特征提取是葡萄干等级检测的基础,该文在研究极惯性矩计算长短轴方法的基础上,提出一种利用数值微分法进行长短轴检测的新方法。
补充资料：对数滴定法
分子式：
CAS号：
性质： 酸碱、络合：沉淀及氧化还原滴定法的滴定曲线，都是呈“S”状的对数曲线，所以称为对数滴定法。
CAS号：
性质： 酸碱、络合：沉淀及氧化还原滴定法的滴定曲线，都是呈“S”状的对数曲线，所以称为对数滴定法。
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