What is math.atan() in Python?

The atan() functionalso called the arc tangent function returns the inverse tangent of a number. To be more specific, it returns the inverse tangent of a number in radians.

Figure 1 shows the mathematical representation of the atan() function and Figure 2 shows the visual representation of the atan() function.

Note: The math module is required for this function.

Tto convert radians to degrees, use:

degrees = radians * ( 180.0 / pi )

Syntax

atan(num)

Parameter

This function requires a number as a parameter. The parameter must be a double value between -1 and 1, i.e., -1 <= parameter <= 1.

Return value

atan() will return the inverse tangent of a number (radians) that is sent as a parameter. The return values lies in interval [-pi/2,pi/2] radians.

Example