导函数

According to the some properties of the differentiation ,I found that the symmetry of the graph is closely related to the first-order differentiation and the second-order differentiation .from this ,I search for a way to identify the symmetry of the functional graph for the direct line or the central symmetry of the functional graph for the some dot .

摘 要：利用导数的一些性质，发现了函数图象的对称性与函数的一阶、二阶导数的密切关系。根据这些关系，找到了一种判定函数图象是否关于某一直线对称或关于某点成中心对称的方法。

Ula. The chain rule is just how to take the derivative of "chained" functions

易。链式法则仅仅是如何对链式函数求导的意思，函数 x 引用函数 g ，你要求导 xg

The chain rule is just how to take the derivative of "chained"functions — meaning, function x calls function g, and you want the

链式法则仅仅是如何对链式函数求导的意思，函数 x 引用函数 g ，你要求导 xg

The chain rule is just how to take the derivative of chained functions — meaning, function x calls function g, and you want the derivative of xg

链式法则仅仅是如何对链式函数求导的意思，函数 x 引用函数 g ，你要求导 xg

This curriculum primary coverage includes: Function and limit, a circular function derivative and differential, theorem of mean and derivative application, indefinite integral, definite integral, definite integral application, space analytic geometry and vector algebra, function of many variables differential method and application, multiple integral, curvilinear integral and surface integral, infinite series, differential equation.

该课程的主要内容有：函数与极限，一元函数的导数与微分，中值定理与导数的应用，不定积分，定积分，定积分的应用，空间解析几何和向量代数，多元函数微分法及其应用，重积分，曲线积分与曲面积分，无穷级数，微分方程。

And then the sufficient conditions of differentiability for the multivariate function is considered.

然后考虑了一般的多元函数的情形，得到了当多元函数的某个偏导数连续，而其余偏导数存在时，函数可微。

The functions, latitude being parameter, are the quasi linear combination of the Legender functions and their derivatives, which can be evaluated by the recursive formulae of the Legender function and its derivatives.

它们关于纬度的函数是 Legender 函数及其导数的拟线性组合，可由目前熟知有关 Legender 函数及其导数的递推公式给予赋值。

Both the offset and tilted fedcoupling-slot array between the curved guide and sectoral guides and longitudinal radiating-slot array on sectoral guide are analyzed by moment method, taking into account of the effects of finite wall thickness and mutual coupling between the slots, employing the acceleration algorithms to accelerate the summation of slowly convergent series of the self-admittance of the waveguide-slot aperture, and introducing the surface Fock functions to simplify the computation of the self-and mutual coupling of the slots on the surface of cylinder.

采用矩量法分别分析弯波导与扇面波导间偏置倾斜馈电耦合缝阵和扇面波导轴向辐射缝面阵，其中计及有限波导壁厚及缝间互耦的影响，运用级数加速算法对波导中自导纳矩阵元级数进行加速处理，并引入表面Fock函数简化圆柱面上缝口面的自耦和互耦的计算。

The derivative of a function can be interpreted either as a function whose value at x is equal to the gradient of the tangent line to the graph of y=f at x, or, alternatively, as a function that describes the instantaneous rate of change of y with respect to x at the point x.

一个函数的导数可以理解为一个函数的值无论是在x是等于切线的梯度的y图二F在x，或者，或者，作为一个函数描述瞬时速度y的变化的关于x的点x在f关于x的也可以表示为导数

A temperature sensor in front of the electromagnetic field, the said without interference from the methods include: the temperature sensor is made on the characteristics of semiconductor material pre-selected wavelengths of light transmission function as the temperature sensor, west DingZheng prismatically configuration sensor, in order to provide a direct path through the reflective temperature sensor said, Another kiss for primary sources said wavelength, Choose 12.449 coupled with optical fiber sensor, the radiating waveguide song, Another kiss can detect radiation intensity detector change along, through direct transmission path as temperature sensor reflective function, Optical fiber sensor probe second waveguide coupling, And the radiation temperature sensing along the road, directly from the first glance through optical waveguide fiber-optic sensors represent temperature, pulsing said waveguide detection radiation intensity of optical fiber sensor, forwarding through said waveguide as the second pen function temperature.

一种温度传感当着电磁场无干扰电磁场说，该方法包括：从编造温度传感器具有半导体材料的特点进行预选波长的光传输功能作为温度传感器、西丁正prismatically配置传感器，以提供一个直接透过反光路说温度传感器；亲另方面说预选波长为辐射源；选择 12.449偶合传感器的辐射源，以光纤波导首；亲另方面探测器能够探测辐射强度的变化直接传送沿说，通过传感器作为道路反光函数温度；光学传感器耦合的光纤探测器第二波导；与由导演辐射温度传感沿线道路反光直接从第一说，通过光纤波导表示温度光纤传感器脉动说波导二、检测辐射强度转发的光纤传感器，通过说波导作为第二笔功能温度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。