您的一或更多的导函数似乎是不确定的。
不管在哪里声明一个变量或函数，extern关键字都允许其他文件在不确定其定义位置的情况下使用该文件。
No matter where you declare a variable or function, the extern keyword allows other files to use it without knowing where it was defined.
该函数接受两个参数，第一个是随机生成的1到1,000,000之间的数字——但我们不确定具体是不是在此范围内。
It takes two parameters and the first is a randomly generated number between 1 and 1 million - but are they?
由于这种不确定性，我们就没办法确定如何引用我们代码里的存储空间，功能函数，或任何其他数据。
Because of this uncertainty there is no way we can determine where our storage space, functions within our code, or any other data we might wish to reference.
这里操作符是否是一个成员函数是不确定的。
边坡变形与破坏是一个复杂的过程，其影响因素众多、且具有不确定性，一般很难用确定的函数式来预测。
Deformation and failure of slope is a complicated process. A definite function to predict deformation of slope is not available due to many influencing factors and undefined feature.
使用模糊测度作为神经网络的目标函数可以有效地描述像素类别的不确定性，从而通过使其最小实现图像分类优化。
Use fuzziness measures as objective function of neural network can depict uncertainty of pixels' category validly so as to optimize image classification by minimizing the objective function.
但销售反应函数的研究仍徘徊在基于可见确定因素的静态模型中，缺少对不确定竞争因素的进一步分析，使它的应用受到了限制。
But the research of sales response function stays at static model based on certain factor. The research is lack of further analysis of uncertain competitive factors, so its application is limited.
针对具有参数不确定性和外部未知扰动的不确定系统，基于灵敏度函数，提出了一种二自由度控制结构。
For uncertain systems with parameter uncertainty and unknown disturbance, a two-degree-of-freedom control structure was proposed based on sensitivity function.
通过选取适合的不确定性权函数、性能权函数和控制权函数，实现系统的鲁棒性能设计。
The design for robust performance of system is realized by choosing proper uncertainty weighted function, performance weighted function, and control weighted function.
基于证据理论的电子装备故障诊断，采用信任函数作为不确定性度量工具。
Fault diagnosis of electronic equipment based on evidence theory, the trust function is adopted as uncertainty measurement tool.
根据模糊推理估计集成不确定边界，利用双曲正切函数代替符号函数实现软切换连续控制。
The integration uncertain border value is estimated by fuzzy inference and the soft switch control is accomplished by tanh (x) function replacing SGN (x).
文中提出未定的确定函数误差与未引起测量数据作随机变动的随机误差宜作为B类不确定度处理。
This paper advances that the unknow error in deterministic function and the random error which don't cause randomly fluctuation of measuring data can deal with uncertainty of B class.
介绍了表征不确定性的概率密度函数和累计密度函数曲线。
To token both curve of uncertainty is recommend which Probability Density Function and Cumulative Density Function.
这些为信度函数的统计推断提供了基本的方法，也为研究工程实际中的主观不确定性奠定了一定的基础。
These provide the basic method to infer the belief functions by statistics, and establish the basis for the analysis of the subjective uncertainty in practice to a certain extent.
通过设定不确定性规避状态函数，运用稳健控制方法获得最优动态资产组合选择的封闭解。
It utilizes robust control method to derive the closed-form solution of optimal dynamic portfolio choice by specifying state function of uncertainty-aversion.
结论反向传播网络在函数逼近方面差的原因是激励函数的全局性、隐层结点数目的不确定性。
Conclusion Because of the inspirit function's globaling and the number of the Hidden Layer'node uncertainty the BPNN was not done well.
利用模糊系统具有以任意精度逼近非线性函数的能力设计FDO对未知干扰和不确定进行估计，并通过鲁棒控制项来提高系统的性能。
Thanks to the approach ability of fuzzy systems, a FDO was used to estimate the unknown disturbances and uncertainties, and the whole system performance was enhanced by a robustifying item.
本文根据不确定性条件下的信息经济分析原理，建立了基于风险效用函数的收费道路使用者支付意愿模型。
This paper establishes a user's willing-to-pay model for pricing road based on risk utility function, which is an application of information economics analysis and risk decision theory.
利用模糊系统对不确定性函数进行逼近，将获得的模糊系统函数作为系统不确定性界函数。
The fuzzy system is used to approximate the system uncertain function, and the fuzzy system function obtained is taken as system uncertainty boundary function.
根据混凝土面板堆石坝结构设计问题中目标函数和约束条件所具有的不确定性性质，阐述了结构模糊随机优化设计的理论和方法。
According to the uncertainty feature of the objective function and the constraint conditions, the theory and method of structure fuzzy random optimization design are introduced.
本文阐明二重极限与二次极限的不确定关系，给出齐次函数的极限不存在的判定方法。
The uncertain relationship between the double limit and the quadratic limit is explained and the determination methods to the nonexistence of the odd function's limit are given.
针对一类带有符号未知不确定虚拟控制增益函数的不确定非线性受扰动系统，提出一种鲁棒自适应控制算法。
A novel robust adaptive controller is presented for a wider class of perturbed uncertain nonlinear systems with unknown virtual control coefficients.
由于该类问题不仅包含了相互冲突的多个目标函数，而且目标函数或者约束又具有不确定性，因而使得传统优化方法难以适用。
Since they often contain multiple objectives with conflict as well as uncertain objective functions and constraints, it is difficult for traditional optimization algorithms to solve them.
提出了一种解决多学科优化中目标函数和约束不确定性的方法。
A method was suggested to solve the multidisciplinary optimization problem with uncertainty both in objective function and constraints.
结合完工隶属函数，给出了安全时差的计算模型，通过安全时差的计算结果，能够合理地反映出网络计划模型中潜在的不确定性的影响程度。
Furthermore, an approach for calculating the safe float is given, by which the influence of the potential uncertainty in network could be reflected rationally.
调用函数时，使用内联定义或外联定义是不确定的。
It is unspecified whether a call to the function USES the inline definition or the external definition.
调用函数时，使用内联定义或外联定义是不确定的。
It is unspecified whether a call to the function USES the inline definition or the external definition.
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