unit vector的意思

單位矢[向]量

[數]單位向量；[數]單位矢量

unit factor───n.裝置因素

unit factors───n.裝置因素

axial vector───軸向矢量

cloning vector───選殖載體；克隆載體（攜帶插入外源片段的質粒或噬菌體，從而產生更多物質或蛋白質產物）

line vector───[機]線矢量

nonvector───n.非病媒

to vector───到矢量

unit set───單臺

unit sets───單臺

's the unit vector in the vertical direction.───即豎直方向的單位向量。

A unit vector normal to the plane of and N , which is the plane of curvature.───所構成的平面的單位向量, 該平面為曲率所在的面.

It is not a unit vector.───它不是單位向量。

A unit vector in the direction of the projection of normal to T.───沿著方向上的單位向量,與T垂直.

Now, how do we get this unit vector?───那我們怎么得到這單位矢量呢？

Now, how do we get this unit vector?

A unit vector in the direction of the projection of normal to T.

And this is the unit vector in the y direction and this is the unit vector in the z direction.

"Roof" always means unit vector.

So, that means this actually should be the unit vector.

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.

Now, another useful notion is the unit vector to the trajectory.

It's the unit vector in the vertical direction.

It has a hat because it's a unit vector, and T because it's tangent.