so, i「m going to draw it in red. ok, so that」s a unit vector that goes along the curve, and then the actual velocity is going to be proportional to that.
现在画成红色,这就是,沿曲线的单位速度向量,实际中的速度向量与它成比例的。
so, if you want a unit vector that goes in the same direction, 1 all you have to do is rescale it, so, at its length becomes one.
如果你希望一单位矢量沿同一方向,你只需要缩放速度,让它的模为。
the terminal sliding mode controller is designed by using unit vector style, and it suits the uncertain elements whether it satisfies the matching condition or not.
采用单位向量控制形式的最终滑动模态控制器,对满足匹配条件和不满足匹配条件的不确定性均适用。
a unit vector normal to the plane of t and n , which is the plane of curvature.
所构成的平面的单位向量,该平面为曲率所在的面。
a new control algorithm is proposed in this paper. that is the unit vector with a integral corrective term adaption law.
本文提出了一种自适应控制算法:单位向量加积分校正自适应算法。
you「ll see why very soon, in such a way that the derivative is this given unit vector u hat.
你很快就会明白为什么,导数dr/ds等于给定的单位u向量。
this article presents the unit vector method for the full shaking force balancing of multi-loop spatial linkages.
本文提出了多环空间连桿机构摆动力完全平衡的单位向量法。
now, another useful notion is the unit vector to the trajectory.
还有一个有用的概念就是轨道的单位矢量。
i take my point on the surface and build a unit vector that is standing on it perpendicularly.
在曲面上固定一点,找出此点垂直的单位向量。
and this is the unit vector in the y direction and this is the unit vector in the z direction.
这则是y轴,方向的单位矢量,这是z轴,方向的单位矢量。
sorry, first of all in case you wonder what this is all about, b so let」s say the components of our unit vector are two numbers, a and b.
首先,以防你们不知道这些是什么,给出这个单位向量的2个分量,a和。
it's the unit vector in the vertical direction.
即竖直方向的单位向量。
and so that means that any vector u, any unit vector tangent to the level set of g is going to be perpendicular to the gradient of f.
也就是说,任何向量u,任何与g的水平集相切的单位向量,应该要与f的梯度垂直。
ax which is the unit vector in the x direction, y plus ay y roof z plus az z roof.
,乘以向量x,ax,times,x,roof,也就是x方向的单位矢量,加上ay乘以向量,加上az乘以向量。
it has two terms: k1 times v-- this is the speed, - this is always positive-- and this is the unit vector of the velocity.
它有两项:k1*v-,这是速度,总是正的-,这是速度的,单位向量。
a unit vector in the direction of the projection of normal to t .
沿着方向上的单位向量,与t垂直。
then the normal unit vector might be this guy, n in which case indeed three times little n will be big n.
那么单位法向量可能是这个,在这种情况下,3*n就是。
suppose a itself is the unit vector in the y direction b then a dot b is what?
假设a是y方向上的,单位矢量,则是z方向上的单位矢量。,and,b,is,the,unit,vector,in,the,z,direction。,那a点b是多少呢?
how to choose appropriate unit vector to establish new inequalities.
如何选择合适的单位向量来创建新的不等式。