Secant
01
割线, 正割线
a line that crosses a curve at least at two distinct points
例子
By drawing a secant, the mathematician was able to study the curve ’s behavior at multiple points.
通过绘制割线，数学家能够研究曲线在多个点的行为。
The secant of the curve intersects it at two different points, forming a distinct angle.
曲线的割线在两个不同的点与之相交，形成一个明显的角度。
02
正割, 正割函数
ratio of the hypotenuse to the adjacent side of a right-angled triangle
