全导数

在常微分方程稳定性理论中，Liapunov稳定性基本定理中的V函数是一个定号函数，且它关于时间t的全导数dV/dt的正负号要求与V相反。

In the stability theory of ordinary differential equations , the V-function of Liapunov fundamental theorem of stability is a fixed sign and its total derivative is contrary sign to V-fuction .

而且在整个推导过程中，对于全导数和偏导数的概念没有分清楚。

And in the process of producing the concepts of the total derivative and the partial derivative are confused .

应用全导数的积分公式建立了积分形式的交通流连续性方程。

Applying the formula , traffic continuity equation in integral calculus form is obtained .

对摄动制导的弹道导弹而言，关机点偏导数和全导数计算及其校验是导弹诸元计算中的重要环节。

For the ballistic missile using perturbation guidance , the computation of partial derivative at shutdown point is very important for data calculation and validation .

另外在整个推导过程中，对于全导数和偏导数的概念没有分清楚，这些都是连续性方程不能满足恒定流条件的根本原因。

Moreover , during the process of producing equation , the concepts of the total derivative and the partial derivative are confused . These all are the basic reasons the continuity equation cannot satisfy the steady flow condition .