正切的英文翻譯

　　正切的英文：

　　secant

　　tangent

　　參考例句：

　　The tangent may be used to find the direction

　　這方向也可用正切求得。The tangent is a relatively important concept in trigonometry.

　　"正切"是三角學(xué)中的一個相對重要的概念。 secant是什么意思：

　　a. 割的,切的,交叉的

　　n. 割線,正切

　　The secant of the complement of a directed angle or arc.

　　余割有向角的余角或弧的'余割A(yù) secant is defined as line passing through two points of the curve.

　　割線的定義是一條通過曲線上兩點的直線。tangent是什么意思：

　　n. 正切；直線區(qū)間；突兀的轉(zhuǎn)向；突然轉(zhuǎn)移話題

　　The direction is tangent to the trajectory.

　　方向就是軌道的切線方向。The tangent is a relatively important concept in trigonometry.

　　The graph of a concave function is always below its tangent.

　　一個凹函數(shù)的圖象總在它的切線的下方。Arrowheads on the lines indicate the direction in which the tangent is to be drawn

　　電力線上的箭頭表示所要畫的切線方向。Don't fly off at a tangent, we are talking about the money problem.

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