| 单词 | secant |
| 释义 | secant['si:kənt]a. 正割的n. 割线, 正割 secant se.cant AHD: [s¶“k²nt”, -k…nt] D.J. [6si87k#nt, -k*nt]K.K. [6si7k#nt, -k*nt]n.Abbr. secMathematics （名词）缩写 sec【数学】 1. 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2. 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3. 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4. 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语源:From Latin sec³ns secant- [present participle of] sec³re [to cut] * see sek- 源自 拉丁语 sec³ns secant- [] sec³re的现在分词 [切] *参见 sek- |
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