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How to Calculate Square Root in Python

Jay Mishra| Python | 8 months, 3 weeks


To calculate the square root of a number in python , we can use sqrt() method which returns the square root of number ( given that the number is > 0 )


To use the sqrt() function in python, we need to import the math module which provides access to the mathematical functions defined by the C standard.


So syntax to calculate python square root looks simply like this :


import math

math.sqrt( x )


where x is > 0


So for example :


import math   # This will import math module

print “Square Root of 49 is ", math.sqrt(49)


Output :


Square Root of 49 is 7.0


method sqrt() returns a float value. 


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