Free Online Inverse Cosine Calculator works in degrees or radians, plus draws triangle.

反正切函数（inverse tangent）是数学术语，反三角函数之一，指函数y=tanx的反函数。 计算方法：设两锐角分别为A，B，则有下列表示：若tanA=1.9/5，则 A=arctan1.9/5；若tanB=5/1.9，则B=arctan5/1.9。

A Tan Inverse Calculator (also called an Arctan Calculator) helps you find the inverse tangent (arctan) of a given number. The inverse tangent function, written as tan⁻¹(x) or arctan(x), determines the angle whose tangent is x.

In a right-angled triangle, the tangent of an angle (θ) is the ratio of its opposite side to the adjacent side. i.e., tan θ = (opposite side) / (adjacent side). Then by the definition of inverse tan, the inverse tan formula is, θ = tan -1 [ (opposite side) / (adjacent side) ] .

Find the angle in degrees or radians using the inverse tangent with the arctan calculator below. Arctan is a trigonometric function to calculate the inverse tangent. Arctan can also be expressed as tan -1 (x). Arctan is used to undo or reverse the tangent function.

2024年4月2日 · Enter any number into the inverse tan calculator. The calculator will return the inverse tangent of that number as degrees or radians.

Use this arctan calculator to quickly find the inverse tangent. Whether you're looking for a simple answer to the question "what is an arctan?" or are curious about the integral or derivative of arctan, you've come to the right place.

The calculator will find the inverse tangent of the given value in radians and degrees. The inverse tangent y=tan^{-1}(x) or y=atan(x) or y=arctan(x) is such a

渐开线有一个很重要的性质，即发生线在基圆上滚过的一段长度等于基圆上被滚过的一段弧长，利用这一性质很容易求出渐开线方程inv(α)=tan(α)-α整个证明就2行，但是没有图光口述实在讲不清，不知道楼主为什么要知道这个，因为这个方程在机械专业的一门专业 ...

Assuming "inverse tan" is a function | Use as a unit or referring to English words instead