Python program converts decimal to binary

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In this program, you will learn to use recursive functions to convert decimal numbers to binary numbers.

To understand this example, you should understand the followingPython programmingTopic:

• Python if ... else statement

• Python function

• Python recursion

Decimal numbers are converted by dividing the numbers successively by2and print the remainders in reverse order to convert to binary numbers.

Source code

# Function to print binary numbers using recursion
def convertToBinary(n):
　　　if n >　1:
　　　　　　　convertToBinary(n//2)
　　　print(n %　2,end = ''
# Decimal number
dec =　34
convertToBinary(dec)
print()

Output results

110100

You can change the variable dec in the above program and run it to test other values.

This program is only applicable to integers. It is not suitable for fractions with25.5,45.64of real numbers. We encourage you to create Python programs to convert all decimal numbers of real numbers to binary by yourself.

Python complete examples