atan

math

Calculates the inverse tangent (arctangent) in radians

Syntax

atan(number)

number (number)

The number to calculate the arctangent of

number

The arctangent in radians

Input:

1 | atan

Output:

0.785... (π/4)

Input:

atan(0)

Output:

Input:

atan(-1)

Output:

-0.785... (-π/4)

The atan() function calculates the inverse tangent (arctangent) of a number, returning the result in radians.

Use atan() to find angles from tangent values or to calculate angles from coordinate ratios in trigonometric calculations.