#python program to print square root of a number

#import math library

import math

#getting number as input from user

num=input("Enter a number: ")

try:

    num=float(num)

    #calculate square root of the number using sqrt function available in math library

    square_root=math.sqrt(num)

    #print square root of given number

    print("---output---")

    print("square root of %0.2f is %0.2f"%(num,square_root))

except:

    print("---error---")

    print("please enter a valid radius")

Enter a number: 256

---output---

square root of 256.00 is 16.00

 

Enter a number: rms

---error---

please enter a valid radius