second derivative 阶导数 ; 二阶函数
Second Derivative Test 二阶导数试验法
second-derivative map 二次微商图
second derivative spectroscopy 二阶导数谱学
second derivative calculation 二次微商计算
second derivative action 二次微分酌 ; 二次导数作用
second derivative spectrometry 二阶导数光谱 ; 二阶导数分光光度法
second derivative set [数] 第二导出集
second derivative plate 二阶导数图版
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。
Basically, the answer for us is that we don't have a second derivative test in this situation.
基本上,答案就是,我们不可以用二次导数来验证这个情况。
That is a critical point. And we used the second derivative to see that this critical point is a local maximum.
这是一个临界点,考察它的二阶导数,会发现这确实是一个极大值点。
Mathematically complete problem is that you can find the function x of t by saying that the second derivative of the function is equal to -k over m times the function.
这个数学问题就是,你可以求出函数 x,只要令函数的二阶导数,等于 -k 除以 m 再乘以函数
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