Python converts decimal to binary

Mondo Technology Updated on 2024-02-01

In computer science and programming, it is often necessary to convert between different base systems. In Python, there are several ways to convert decimal numbers to binary. First, the basic method of dividing a loop by 2 is introduced, and the binary representation is obtained by repeatedly dividing by 2 and recording the remainder. Then, the use of built-in functions is providedbin()The function returns directly to the end"0b"The binary string at the beginning.

In binary systems, the weight of each bit is a power of 2. Therefore, we can divide by 2 repeatedly and record the remainder, and the final remainder sequence is the binary representation of the decimal number.

def decimal_to_binary(decimal_num):

binary_num = ""

if decimal_num == 0:

return "0"

while decimal_num > 0:

remainder = decimal_num % 2

binary_num = str(remainder) +binary_num

decimal_num //= 2

return binary_num

The above function takes a decimal number and returns its corresponding binary representation. In particular, if the input is 0, the string is returned directly"0"。

Example use. 

decimal_number = 25

binary_representation = decimal_to_binary(decimal_number)

print(f"the binary ~ of is: ")

The full ** is shown below.

In the above example, we convert the decimal number 25 to binary and print out the result. It is shown below.

The same type was tested using the decimal system 28, and the results are as follows, and the principle is similar.

In addition to the method of dividing the loop by 2 described above, there are other methods that can be used to convert decimal numbers to binary. Here are two main ways to do this:

In Python, you can use built-in functionsbin()Convert decimal numbers directly to binary strings.

decimal_number = 25

binary_representation = bin(decimal_number)[2:]

print(f"the binary ~ of is: ")

bin()Returns a string to:"0b"Beginning, followed by a binary representation. We pass through slicesRemove the beginning"0b"。

With the above simple python functions, we are able to conveniently convert decimal numbers to binary. This is fundamental and important for many applications in computer science and digital processing. Hopefully, this blog will help you understand and apply this conversion process.

Related Pages