Each trace component and group is defined based on product version, so there are different trace specification strings for WebSphere Application Server version 5.x and version 6.x.
每个跟踪组件和组都基于产品版本定义,因此WebSphere Application Server v 5 . x和v6 . x的跟踪规范字符串彼此存在差异。
You take the y component, take the derivative with respect to x, take the x component, differentiate with respect to y, you should get the same answer. And that is important to know.
对y分量,关于x求导,对x分量,关于y求导,应该得到相同结果,这个知识点很重要。
So this one equals m1 g cosine alpha - and this one, the x component-- which is in the minus x direction now-- equals m1 g sine alpha.
得到m1gcosα,而x方向上-,这里是x负方向-,大小是m1gsinα
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