sqrt

math.sqrt() -> float

Returns the square root of x (math, numpy).

REMARKS

* math module
* Always returns a float, even when the input is an integer.
* You can use the math.isqrt function to

import math 
import numpy as np 

print(math.sqrt(16))         #= 4.0 
print(math.sqrt(9))          #= 3.0 (float) 
print(math.sqrt(-9))         #= ValueType 
print(math.sqrt('text'))     #= TypeError