noun
数据来源:WordNet
10.What part of an inverse tangent function approaching an asymptote don 't you understand ?
反正切曲线接近渐近线哪个字你不明白啊?
The atanh () function returns the inverse hyperbolic tangent of an angle .
函数的作用是:返回一个指定角度参数所对应的反双曲正切值。
Inverse Theorem of Tangent and Secant and Its Applications
切割线定理的逆定理及其应用