Python atan2 () function

Describe

atan2 () returns the inverse tangent value of the given X and Y coordinate values.

Grammar

The following is the syntax for the ATAN2 () method:

Import mathmath.atan2 (y, x)

Note:atan2 () is not directly accessible, you need to import the math module, and then call the method through the math static object.

Parameters

• X--a numeric value.
• Y--a numeric value.

return value

Returns the inverse tangent value of the given X and Y coordinate values.

Instance

The following shows an example of using the Atan2 () method:

#!/usr/bin/python3import Mathprint ("atan2 ( -0.50,-0.50):",  math.atan2 ( -0.50,-0.50)) print ("Atan2 (0.50,0.50):" ,  math.atan2 (0.50,0.50)) print ("Atan2 (5,5):",  math.atan2 (5,5)) print ("Atan2 ( -10,10):",  math.atan2 (- 10,10) Print ("Atan2 (10,20):",  math.atan2 (10,20))

When the above instance is run, the output is:

Atan2 ( -0.50,-0.50):  -2.356194490192345atan2 (0.50,0.50):  0.7853981633974483atan2 (5,5)  : 0.7853981633974483atan2 ( -10,10):  -0.7853981633974483atan2 (10,20):  0.4636476090008061

Python atan2 () function