The general conclusion is derived by using the features that moment of inertia is a function of the Angle of rotation and the function has extreme value.
该方法利用惯性矩是方位角的函数，且函数有极值的特征推出普遍性结论。
In this paper we give a method of test, which makes use of the gradient, to verify the extreme value of multivariate function, and give some typical examples.
本文给出了利用梯度判定多元函数极值的判别法，并提供了若干范例。
应用推荐