专业释义英英释义
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二阶导数 - 引用次数：20
Traditionally, the method of bar code recognition is based on zero crossing of the second derivative.
传统的条码识别方法是通过二阶导数零交叉来定位条码边界。
参考来源 - 基于迭代计算的二值波形反卷积 in C -
二阶导数 - 引用次数：24 参考来源 - 用红外光谱研究胃癌细胞SGC7901光敏损伤后蛋白质的二级结构
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二阶导数 - 引用次数：1 参考来源 - 三阶时滞微分系统的镇定性和脉冲泛函微分系统的稳定性研究二阶函数二次导数
·2,447,543篇论文数据，部分数据来源于NoteExpress
Second derivative
- abstract: In calculus, the second derivative, or the second order derivative, of a function f is the derivative of the derivative of f. Roughly speaking, the second derivative measures how the rate of change of a quantity is itself changing; for example, the second derivative of the position of a vehicle with respect to time is the instantaneous acceleration of the vehicle, or the rate at which the velocity of the vehicle is changing.
以上来源于: WordNet
双语例句原声例句权威例句
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So, what does the second derivative test say?
那么二阶导数判定是怎样的呢？
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And all we did, further, is take that second derivative.
总而言之，我们所做的就是求二阶导数。
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So, it's the second derivative of a position vector.
它是位置向量的二阶导。
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And all this is, is saying that when you take a mixed second derivative, it doesn't matter in which order you take the two derivatives.
麦克斯韦关系的本质是,当你考虑混合的二阶导数时，求导的顺序不影响最后的结果,现在，我们利用这些关系。
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What's a function, what's a derivative, what's a second derivative, how to take derivatives of elementary functions, how to do elementary integrals.
什么是函数,什么是导数,什么是二阶导数,如何对初等函数求导,如何进行初等积分
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But, of course, we want to go all the way to distance, so we take the second derivative and we have this equation for force here.
当然我们最后想要的是距离,所以我们取二阶微,分就有这个式子。
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