查询词典 derivative

The formula requires not only the function value,but also the first derivative and second derivative value on node.

此类求积公式不但需要结点上的函数值，还需要结点上的一阶和二阶导数值。

The first order derivative transfer was carried out in the spectrum data.The first order derivative feature is analyzed.It is shown that:The vegetables can be divided into two groups according to their reflectivity during 400nm to 679nm.

研究表明，在波长400~679 nm的范围上，可以根据其反射值的高低，将蔬菜分为两组，一组为大白菜、豌豆、牛皮菜和青菜，另一组为葱、大蒜和香菜。

Introduced formal notations of derivative which keep the properties of derivative and their operations are easily realized on computer,A mechanization proving principle of automatic reasoning of transformations between differential equations is built.

引进保持性质的导数的形式记号，建立了微分方程变量间依赖关系的自动推理的机械化证明原理，从而方程间的变换（如Backlund变换等）均可机械地验证。

The following results are obtained:(1)a derivative formal context of an information system can be induced by the notion of nominal scale and the technique of plain scaling in formal concept analysis;(2)some core notions in rough set theory such as partition,upper and lower approximations,independence,dependence and reduct can be reinterpreted in derivative formal contexts.

利用形式概念分析中名义梯级背景的概念，对信息系统进行平面梯级得到了衍生的形式背景。证明了粗糙集理论中的划分、上下近似、独立、依赖、约简等核心概念都可以在相应的衍生背景中进行表示。

In this paper,a space fractional differential equation is considered.The equation is obtained from the advection-diffusion equation by replacing the second order derivative in space by a fractional derivative in space of order.

考虑空间分数阶微分方程(即在一个标准的扩散-对流方程中，用分数阶导数代替空间二阶导数)，给出了该分数阶微分方程的显式和隐式有限差分格式。

The main research contents and results are described as follows:The constitutive equation of the elastomer modeled by the fractional derivative Maxwell model has been investigated. Based on the thermodynamics constraints analysis of the physical parameters of the fractional derivative Maxwell model, the relaxation modulus and the creeping modulus of the model are analyzed.

本论文针对该目的，采用理论研究与试验研究相结合的方法，首先研究了胶泥缓冲器的耗能机理，进而设计开发了较理想的缓冲器产品，具体研究内容和成果如下：研究了胶泥的本构模型——分数微分Maxwell模型。

E. , the Frechet derivative is the first order of Zhang's integrated geometric factor. With the help of FEM, the calculation of the Frechet derivative is carried out conveniently, and its efficiency and accuracy are recommendable.

同时给出了均匀背景条件下Frechet导数结果，并且巧妙地解决了利用有限元素法计算Frechet导数的问题，获得了较高的运算效率和计算精度，从而使经典的有限元素法具备了求解测井响应和进行Frechet导数精确计算的双重功能。

The procedure estimating the regularization parameter is the same as that the adaptive Marquardt algorithm used. The Frechet derivative is directly derived from the forward methods: SAM and FEM. With the theory of SAM and Zhang′s geometric factor, the relationship between the Frechet derivative and the geometric factor is established, at the same time, one useful corollary is given, i.

选取正则化因子时，沿用自适应的Marquardt算法中阻尼因子的选取计算方法；计算Frechet导数时，根据逐次逼近解法和张氏几何因子理论，推导出了Frechet导数与张氏几何因子的关系，得出了Frechet导数为张氏一阶积分几何因子的结论。

By means of the Hermite interpolation formula with second derivative,a type of integrating formulas with second derivative is derived.

利用带二阶导数的Hermite插值公式，导出一类具有二阶导数的求积公式。

Higher Mathematics in derivative is a very important concept, is to study an important tool for mathematical problem, while derivative areas in mathematics also have a very wide range of use.

论文摘要翻译，谢谢摘要：导数在高等数学中是一个很重要的概念，是研究数学问题的重要工具，同时导数在数学领域外也有着非常广泛的运用。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。