tangent
名詞
定義 tangent 名詞
geometry(几何)
- Countable(可数名词)mathematics(数学)
A straight line that touches a curve at a single point without intersecting it.
切线
Draw a circle, then draw a straight line that is tangent to the circle.
画一个圆，然后画一条与圆相切的直线。
The tangent line helps us understand the slope of the curve at a particular point.
切线帮助我们了解曲线在特定点的斜率。
In geometry, the tangent is a crucial concept often used in calculations and graphing.
在几何学中，切线是一个在计算和绘图中经常使用的关键概念。
mathematics(数学)
- Countable(可数名词)mathematics(数学)written abbreviation(书面缩写)
In a right triangle, the ratio of the length of the side opposite an angle less than 90 degrees to the length of the adjacent side (shorter of the two sides next to the angle).
正切
In a right triangle, if the tangent of an angle is 1, then the opposite and adjacent sides are equal in length.
在直角三角形中，如果一个角的正切值为 1，那么它的对边和邻边长度相等。
In trigonometry, the tangent function is used to calculate the relationship between angles and side lengths.
在三角学中，正切函数用于计算角度和边长之间的关系。
Calculating the tangent of an angle can help us find other side lengths in a triangle.
计算一个角的正切值可以帮助我们找到三角形中其他边的长度。
成語
- go off on a tangent
To abruptly shift to a different topic of conversation or thought.
话题一转
• During the meeting, he went off on a tangent about his weekend fishing trip.
在会议中，他突然开始谈论他周末的钓鱼之旅。