Arctan(x) Calculator

Online arctan(x) calculator. Inverse tangent calculator.

Tangent calculator ►

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°

In order to calculate arctan(y) on a calculator:

Tangent calculator ►