tangent是什么意思_tangent的用法_词性_词根

短语搭配

arc tangent

反正切
loss tangent

损失角正切；损失正切；损耗正切
tangent line

切线

双语例句

A tangent is a straight line that touches the outside of a curve but does not cut across it.

切线是一条直线它接触曲线的外部但不横切它
The conversation went off on a tangent.

谈话突然偏离了正题。
In this paper base tangent length is put forward and lead angle calculating formula is deduced.

这篇文章提出了公法线长度并推导出超前角的计算公式。
It is really the tangent plane.

它确实就是切平面。
That is how we get the tangent plane.

这样我们就得到了切平面。
That's the equation of a tangent plane.

这就是切平面的方程。

近义词

adj.

同根词

词根 tangent

tangential adj. [数] 切线的，[数] 正切的；离题的，扯远的 n. 正切，切线
tangentially adv. 无关地；切线地
tangency n. 相切，接触

百科

Tan是正切的意思，角θ在任意直角三角形中，与θ相对应的对边与邻边的比值叫做角θ的正切值。 tanA=对边/邻边。其在直角坐标系中相当于直线的斜率k。若将θ放在直角坐标系中即tanθ=y/x。

释义

a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point

切线，切面。

figurative a completely different line of thought or action

〈喻〉完全不相干的想法或举动；离题

Loretta's mind went off at a tangent.

洛蕾塔的思想突然离题了。

Mathematics the trigonometric function that is equal to the ratio of the sides (other than the hypotenuse) opposite and adjacent to an angle in a right-angled triangle

【数】正切。

adj.

(of a line or plane)touching, but not intersecting, a curve or curved surface

（线，平面）正切的。

词源

"late 16th cent. （in sense 2 and as an adjective）： from Latin tangent- ‘touching'， from the verb tangere."

Ridiculous. Sheldon, I vote that is not a tangent.

太荒谬了。谢尔顿，我投票，这不是带偏题。

《The Big Bang Theory Season 8》《生活大爆炸第八季》
We didn't vote. We didn't have to, that was clearly a tangent. Now come on. Back to work.

我们还没有投票呢。不必投票，你明显是带偏话题了，快点，继续工作。

《The Big Bang Theory Season 8》《生活大爆炸第八季》
You said quantum coupling. That made me think of the show Quantum Leap. That's a tangent and it's your fault.

你刚说"量子耦合"，让我想起电视剧《量子跳跃》，这是偏题，是你的错。

《The Big Bang Theory Season 8》《生活大爆炸第八季》