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

Getting Started

The task is to multiply an integer and a float numbers in python. For example,

If a = 2 and b = 3.1, then output is 2 x 3.1 = 6.2.

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 multiplication operator (i.e. * operator), we can perform multiplication operator as shown below –

Output:

Using User Input

If we want to multiply integer and float numbers taken as input from user, we can do so as shown below –

Output:

Using User Input (Command Line Arguments)

• Read value from command line arguments using sys.argv present in sys module in python.
• Then, convert one value into integer using int() function.
• Convert another integer using float number using float() function.
• Multiply both numbers using multiplication operator.

• Method 1

  m1, m2 = sys.argv[1:3] reads two values from command line arguments and store them in m1 and m2.

  import sys

  m1, m2 = sys.argv[1:3]

  print("Result:", int(m1) * float(m2))

  Output:

  Result: 57.39999999999999

  Run above code using command line arguments 7 and 8.2

• Method 2

  If we don’t want to restrict number of variables to be read from command line argument, we can omit second parameter in sys.argv[1:] as shown below –

  import sys

  m1, m2 = sys.argv[1:]

  print("Result:", int(m1) * float(m2))

  Output:

  Result: 57.39999999999999

Using Lambda

Lambda function and multiplication can perform the task to multiply integer with float numbers as shown below –

Output:

Using Function

If we want to define a function in python that can multiply integer and float numbers, we can do so as shown below –

Output:

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

Reference: Multiplication

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