Arctan Calculator

The Online arctan(x) calculator, also known as an inverse tangent calculator, is a convenient tool for finding the arctangent or inverse tangent of a given value. By entering a numerical value into the calculator, you can obtain the angle in radians or degrees corresponding to that value.

What is Arctangent

Arctangent, also known as inverse tangent, is a mathematical function that yields the angle whose tangent is a given number or ratio. It is the inverse of the tangent function. The arctangent function is denoted as arctan(x) or atan(x), where x is the input value. For example, if you have a value of 0.577 and you want to find the corresponding angle, you would use the arctangent function. It will return the angle (in radians or degrees) whose tangent is approximately 0.577. The arctangent function is widely used in various fields such as mathematics, physics, computer science, and engineering, particularly in solving problems related to angles, triangles, and trigonometry.

Arctangent definition

The arctangent function is the inverse function of y = tan(x).

arctan(y) = tan^-1(y) = x+ kπ

For every

k = {...,-2,-1,0,1,2,...}

For example, If the tangent of 45° is 1:

tan(45°) = 1

Then the arctangent of 1 is 45°:

arctan(1) = tan^-1(1) = 45°

Arctangent table

Arctan Calculator Example