Python atan2 () function

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description

atan2 () Returns the arctangent of X and Y coordinate values.

grammar

The following is the syntax atan2 () method:

import math

math.atan2(y, x)

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

parameter

• x - a value.
• y - a value.

return value

Returns the arctangent of X and Y coordinate values.

Examples

The following shows an example of the use of atan2 () method:

#!/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)

After running the above example output is:

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

Python figures