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Python math.atan() Method

❮ Math Methods

Example

Return the arc tangent of different numbers:

#Import math Library
import math

#fReturn the arc tangent of different numbers
print (math.atan(0.39))
print (math.atan(67))
print (math.atan(-21))
Try it Yourself »

Definition and Usage

The math.atan() method returns the arc tangent of a number (x) as a numeric value between -PI/2 and PI/2 radians.

Arc tangent is also defined as an inverse tangent function of x, where x is the value of the arc tangent is to be calculated.

Syntax

math.atan(x)

Parameter Values

Parameter Description
x Required. A positive or negative number. If x is not a number, it returns error a TypeError

Technical Details

Return Value: A float value, from -PI/2 to PI/2, representing the arc tangent of a number
Python Version: 1.6.1

❮ Math Methods