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词汇	secant
释义	se·cant AHD[sēʹkănt', -kənt] D.J.[ˈsiːˌkænt, -kənt]K.K.[ˈsiˌkænt, -kənt]n.Abbr. secMathematics （名词）缩写 sec【数学】 Clarinda/Academy Artworks A straight line intersecting a curve at two or more points.割线：连接两点或多点的横割某条曲线的直线 The straight line drawn from the center through one end of a circular arc and intersecting the tangent to the other end of the arc.正割线：从圆心引出的经过圆弧一个端点并与另一端点正切交割的直线 The ratio of the length of this line to the length of the radius of the circle.正割值：这条线的长度与圆半径之比 The reciprocal of the cosine of an angle in a right triangle.正割：直角三角形中一个角正弦的倒数 Etymology语源 From Latin secāns secant- [present participle of] secāre [to cut] * see sek- 源自 拉丁语 secāns secant- secāre的现在分词 [切] * 参见 sek-
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