Python Number atan2() Method
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Description
The method atan2() returns atan(y / x), in radians.
Syntax
Following is the syntax for atan2() method −
atan2(y, x)
Note − This function is not accessible directly, so we need to import math module and then we need to call this function using math static object.
Parameters
y − This must be a numeric value.
x − This must be a numeric value.
Return Value
This method returns atan(y / x), in radians.
Example
The following example shows the usage of atan2() method.
Live Demo#!/usr/bin/python import math print "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 we run above program, it produces following result −
atan2(-0.50,-0.50) : -2.35619449019 atan2(0.50,0.50) : 0.785398163397 atan2(5,5) : 0.785398163397 atan2(-10,10) : -0.785398163397 atan2(10,20) : 0.463647609001
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