How to Calculate Square Root in Python

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.