Well, at point P, the velocity vector QP is perpendicular to the line QP, 1 so the sine of that angle is one.
点P,速度向量,垂直于直线,所以该角的正弦值为。
The state space may be thought of as a big vector space with each basis element spanning the possible states of one system element (say a memory register or the CAM Angle).
状态空间可能被认为是一个大向量空间,其每个基本元素跨越一个系统元素的可能状态(比方说内存寄存器或偏心角)。
I put a vector sign over here, because you have to take the cross-product between the two, so you take the... sine of this Angle has to be taken into account.
在此加一个向量标志,因为必须要,算这俩的乘积,所以,sin这个角度必须,考虑在内。
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