Python Program to Check if a Number is Positive, Negative or 0 (Using Nested if)

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num = float(input("Enter a number: "))
if num >= 0:
   if num == 0:
       print("Zero")
   else:
       print("Positive number")
else:
   print("Negative number")
 

Output 1

Enter a number: 2
Positive number

Output 2

Enter a number: 0
Zero