时间导数

时间导数（Time derivative）可用来表达函数时域自变量变化时如何确定函数值的瞬时变化率。记作：

$\frac{df(t)}{dt}$

时间导数的概念在物理学中常有应用。

单词	Time derivative
释义	Time derivative 中文百科时间导数时间导数（Time derivative）可用来表达函数时域自变量变化时如何确定函数值的瞬时变化率。记作： $\frac{df(t)}{dt}$ 时间导数的概念在物理学中常有应用。英语百科 Time derivative 时间导数 A time derivative is a derivative of a function with respect to time, usually interpreted as the rate of change of the value of the function. The variable denoting time is usually written as $t\,$ .
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Time derivative