In this article, we will learn about python program to subtract integer and float numbers with examples.

Getting Started

The task is to subtract integer and float numbers in python. For example,

If a = 10 and b = 1.2, then output is 10 – 1.2 = 8.8

We can do so in multiple ways –

• Simple Approach
• Using User Input
• Using User Input(Command Line Arguments)
• Using Lambda
• Using Function

Simple Approach

Using – operator, we can write python program to subtract integer and float numbers. For example,

 
b1 = 28
b2 = 4.32
 
result = b1 - b2  # Subtract using - operator
print("Result:", result)

Output:

 
Result: 23.68

Using User Input

Instead of static input, we can take input from user using input() method in python. After that, we can type cast using float() and int() method and subtract using – operator. For example,

 
b1 = float(input("Enter a float number"))
b2 = int(input("Enter an integer"))

result = b1 - b2
print("{0} - {1} is {2}" .format(b1, b2, result))

Output:

 
Enter a float number
12
Enter an integer
2
12.0 - 2 is 10.0

Using User Input (Command Line Arguments)

Using sys.argv present in sys module in python, we can accept user input from command line arguments. For example,

• Method 1

   
  import sys
  b1, b2 = sys.argv[1:3]
  print("Result:", float(b1) - int(b2))
  

  Output:

   
  Result: -2.6799999999999997
  

• Method 2

  We can accept more than two input from command line argument as –

   
  import sys
  b1, b2 = sys.argv[1:]
  print("Result:", float(b1) - int(b2))
  

  Output:

   
  Result: -2.6799999999999997
  

Using Lambda

If we want to write logic to subtract integer and float numbers in lambda function, we can do so as shown below –

 
if __name__ == "__main__" :
    b1 = 7.68
    b2 = 2
 
    # Subtract integer and float numbers
    subtract_IntFloat = lambda b1, b2 : b1 - b2
    print("Result:", subtract_IntFloat(b1, b2))

Output:

 
Result: 5.68

Using Function

If we want to wrap logic to subtract integer and float number in a function, we can do so as shown below –

 
def subtractIntFloat(b1, b2):
    return b1 - b2

print("Result:", subtractIntFloat(41.5, 2))

Output:

 
Result: 39.5

That’s how we can write python program to subtract integer and float numbers with examples.

Reference: Subtraction

Learn about more python examples at – https://tutorialwing.com/python-tutorial/