To find out the square root in Python Programming Language you can use math.sqrt() function of Standard Library.
Python sqrt() Function
math.sqrt() function exists in Standard math Library of Python Programming Language. The purpose of this function is to calculate squar root of a given value x. x must be greater than zero (x>0).
Python sqrt() Function Syntax
The syntax of sqrt function in python is:
math.sqrt( x )
Python sqrt() Function Parameters
x – Any valid Python positive number. This parameter is required.Note: if the
x parameter is not a number returns an error.
Python sqrt() Function Compatibility
Python 2.x – Yes
Python 3.x – Yes
Python 3.x – Yes
Python sqrt() Return Value
sqrt() function will return an integer or a floating point number after calculating squar root. The return value will always be greater than zero.
Python sqrt() Function Examples
1 2 3 4 5 6 | # import math library import math print (math.sqrt(0)) print (math.sqrt(4)) print (math.sqrt(5.5)) print (math.sqrt(-2.9)) |
Output of Python
sqrt() function:
0.0
2.0
2.345207879911715
ValueError: math domain error
