点角 point angle; point-angle 焦点 1.[数学] [物理学] (二次曲线焦点; 主焦点) focal point; focus 虚焦点 virtual focus; 主焦点 pri .
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Point Angle 顶尖角 ; 锥尖角 ; 顶角 ; 钻尖角
tool point angle 刀刃角
Handlebar center point angle 车把中心点的角度
single-point angle 自浮式单点测斜仪
weight point angle 重点位置角
angle point 角点
wire point angle 针尖角
Suppose I set the angle of the ladder exactly at the critical point.
假设我使,梯子正好,处于这个临界角。
And the second point is of radius 3 and angle 1, which is up about there.
半径为2然后角度为1的一个点,也就是差不多在这儿,我认为为了确保我做的是。
self y Notice what I also do here, I create self dot y, give it a value, and then, oh cool, I can also set up what's the radius and angle for this point, by just doing a little bit of work.
我创建了,然后给它赋值,然后,噢太酷了,通过做一点额外的工作,就可以得到点的半径和角度了,好,实际上如果。
Another way to represent a point in a plane is I've got a radius and I've got an angle from the x-axis, right, and that's a standard thing you might do.
平面上面的点的方法,也就是极坐标,上面那种方法其实是,如果你们喜欢我这么说的话,笛卡尔坐标表示法。
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