The inverse tangent function, denoted as tan^-1(x) or arctan(x), is a mathematical function that calculates the angle whose tangent is x. It is the inverse function of the tangent function, which means that it undoes the operation of the tangent function.
The inverse tangent function is commonly used in trigonometry to find the angle of a right triangle given the ratio of its opposite and adjacent sides. It is also used in calculus to find the derivative of trigonometric functions.
