Python Square Root Program

Python Square Root Program – Write a Python Program To find Square root of a number. Three Python programs to find square root of a number using Python.

Code of Python Square Root Programs

Program 1:Use Exponentiation Operator

Exponentiation Operator ** in Python is used to raise the first operand/number to power of second number.

# Python Program to find square root of a number

# Input number 
n = float(input('Enter a number: '))

sqroot = n ** 0.5
print('The square root of %0.2f is %0.2f'%(n ,sqroot))

Output

Enter a number: 16
The square root of 16.00 is 4.00

Program 2: Use sqrt() function of Math Module

The sqrt() function is a predefined method of Math module. This function will find the square root of a given number in Python.
Note: import the math module before using sqrt() function.

# Python program to find square root Using the sqrt() function
from math import sqrt
num = int(input("Enter a number:"))
sqroot = sqrt(num)
sqroot = round(sqroot,2)
print ("The square root of ",num," is ",sqroot)

Output

Enter a number: 81
The square root of 81.00 is 9.00

Program 3: Use builtin pow() function

# Python program to find square root Using the pow() function
from math import pow
num = int(input("Enter a number:"))
sqroot = pow(num,0.5)
sqroot = round(sqroot,2)
print ("The square root of ",num," is ",sqroot)

pow() function will take two arguments, first is number and second is power of that number. For example pow(8,2) will return 64. It means that pow(number,power) function will calculate the number raised to the given power.

Output

Enter a number:10
The square root of 10 is 3.16

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