tangent

英 [ˈtændʒənt]

美 [ˈtændʒənt]

n. 切线; 正切

复数：tangents　

BNC.21952 / COCA.24421

习惯用语

fly/go off at a tangent

突然转换话题；突然改变行动
to suddenly start saying or doing sth that does not seem to be connected to what has gone before

noun

切线
a straight line that touches the outside of a curve but does not cross it
正切
the ratio of the length of the side opposite an angle in a right-angled triangle to the length of the side next to it

切线
Atangentis a line that touches the edge of a curve or circle at one point, but does not cross it.
PHRASE 突然偏离原来的思路;突然离题
If someonegoes off at a tangent, they start saying or doing something that is not directly connected with what they were saying or doing before.
1. The conversation went off at a tangent.
  交谈突然偏离了正题。

noun

ratio of the opposite to the adjacent side of a right-angled triangle
Synonym:tan
a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point

That's one way to define the tangent plane.
这是定义切平面的方法。
The first two order radial and tangent displacement modes of pipe are acquired.
对管道进行数值模拟，提取前两阶径向和切向位移模态。
And, that's the same thing& as being tangent to the level.
这就和“与等值面相切”说的一样了。
It's going to be tangent to the level surface, right?
它是与等值面相切的，对不对？
The atanh() function returns the inverse hyperbolic tangent of an angle.
函数的作用是：返回一个指定角度参数所对应的反双曲正切值。
These two curves are tangent.
这两个弧相切。
Accurate reconstruction of planar contour mixed with straight lines and arcs is achieved with position or tangent continuity.
解决了由直线和圆弧构成的平面轮廓精确重构问题，满足轮廓各段之间位置连续以及相切条件。
Describes the tangent when approaching this point from the previous point in the curve.
在曲线上从上一个点接近这个点时描述切线。
Finally, we illustrate the effects of using the tension parameter and tangent vectors to generate subdivision curves.
最后给出一些实例来说明松弛参数和切向量对细分曲线的影响。
The plane that contains all the lines tangent to a specific point on a surface.
包含所有在表面上的一个特殊的点相切的线的平面。