Python math.sqrt() Method

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Python math.sqrt() method “returns the square root of any number.”

Syntax

math.sqrt(number)

Parameters

x: It is any number such that x>=0. The sqrt() function takes a number as an argument.

Return Value

It returns the square root of a number argument.

Example 1: How to Use math.sqrt() Method

Import math module to work with mathematical operations in Python.

import math

print(math.sqrt(81))


Python Math Square Root Tutorial


It is the best way to find the square root of any number.


Example 2: Passing positive argument


Another way will give us the same output, but the number must be positive, not negative, and not complex.




num = 49

sq_root = num ** 0.5
print(sq_root)




Output


Python Sqrt Example


Example 3: Passing a complex number


To calculate a square root of a complex number in Python, use the cmath module. To use the cmath module, you must import it and then use its sqrt() function.




import cmath

print(cmath.sqrt(1 + 2j))




Output


Python Sqrt Example | Python Math Square Root Tutorial


That’s it.

		


				
			




			

				


		

		
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