Course Content

Numeral Systems 101

1. Binary Numeral System

Welcome on Board!Get Acquainted with Binary Code Decipher Binary Number Decipher List of Binary Numbers Cipher Some Numbers Hone your Ciphering Skills Dates in Binary

2. Octal Numeral system

Get Acquainted with the Octal Numeral System Practice Ciphering

3. Hexadecimal Numeral system

Deciphering Challenge One More Ciphering Challenge

4. Revelation

Write the Code in One Line Harder Converting Converting Using Format Method

Write the Code in One Line

I strongly believe that Python is a careful language; hence, it tries to make your life effortless and forces you to get rid of the habit to program using another language😏.

bin helps you without any loops convert the number to a binary representation.


              1234
            
decimal_number = 9874
binary_number = bin(decimal_number)

print(binary_number)

Indeed, python cares about us, and I suppose we should appreciate it and allow it to care about itself.

0b is a sign for Python that this code is binary;
0o or 0O(both ways are acceptable) means that this code is octal;
0X defines hexadecimal code in the way that we learned (with uppercase letters), by the way, there is also a 0x format, but it defines hexadecimal code in lowercase letters.

Therefore, the code in each system is determined after 0b, 0c or 0X, except decimal obviously.

oct will come in handy when you want to cipher numbers to the octal numeral system.


              1234
            
decimal_number = 25
octal_number = oct(decimal_number)

print(octal_number)

hex is valuable when you want to convert a number to a hexadecimal numeral system.


              1234
            
decimal_number = 1390
hexadecimal_number = hex(decimal_number)

print(hexadecimal_number)

Task

Swipe to show code editor

So far so good ☺️. Here you should convert a number from a decimal numeral system to another that you've learned.Follow this algorithm:

Convert the decimal_number to the binary numeral system.
Convert the decimal_number to the octal numeral system.
Convert decimal_number to the hexadecimal numeral system.
Print the result.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 4. Chapter 1

Write the Code in One Line

I strongly believe that Python is a careful language; hence, it tries to make your life effortless and forces you to get rid of the habit to program using another language😏.

bin helps you without any loops convert the number to a binary representation.


              1234
            
decimal_number = 9874
binary_number = bin(decimal_number)

print(binary_number)

Indeed, python cares about us, and I suppose we should appreciate it and allow it to care about itself.

0b is a sign for Python that this code is binary;
0o or 0O(both ways are acceptable) means that this code is octal;
0X defines hexadecimal code in the way that we learned (with uppercase letters), by the way, there is also a 0x format, but it defines hexadecimal code in lowercase letters.

Therefore, the code in each system is determined after 0b, 0c or 0X, except decimal obviously.

oct will come in handy when you want to cipher numbers to the octal numeral system.


              1234
            
decimal_number = 25
octal_number = oct(decimal_number)

print(octal_number)

hex is valuable when you want to convert a number to a hexadecimal numeral system.


              1234
            
decimal_number = 1390
hexadecimal_number = hex(decimal_number)

print(hexadecimal_number)

Task

Swipe to show code editor

So far so good ☺️. Here you should convert a number from a decimal numeral system to another that you've learned.Follow this algorithm:

Convert the decimal_number to the binary numeral system.
Convert the decimal_number to the octal numeral system.
Convert decimal_number to the hexadecimal numeral system.
Print the result.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 4. Chapter 1

Write the Code in One Line

I strongly believe that Python is a careful language; hence, it tries to make your life effortless and forces you to get rid of the habit to program using another language😏.

bin helps you without any loops convert the number to a binary representation.


              1234
            
decimal_number = 9874
binary_number = bin(decimal_number)

print(binary_number)

Indeed, python cares about us, and I suppose we should appreciate it and allow it to care about itself.

0b is a sign for Python that this code is binary;
0o or 0O(both ways are acceptable) means that this code is octal;
0X defines hexadecimal code in the way that we learned (with uppercase letters), by the way, there is also a 0x format, but it defines hexadecimal code in lowercase letters.

Therefore, the code in each system is determined after 0b, 0c or 0X, except decimal obviously.

oct will come in handy when you want to cipher numbers to the octal numeral system.


              1234
            
decimal_number = 25
octal_number = oct(decimal_number)

print(octal_number)

hex is valuable when you want to convert a number to a hexadecimal numeral system.


              1234
            
decimal_number = 1390
hexadecimal_number = hex(decimal_number)

print(hexadecimal_number)

Task

Swipe to show code editor

So far so good ☺️. Here you should convert a number from a decimal numeral system to another that you've learned.Follow this algorithm:

Convert the decimal_number to the binary numeral system.
Convert the decimal_number to the octal numeral system.
Convert decimal_number to the hexadecimal numeral system.
Print the result.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

I strongly believe that Python is a careful language; hence, it tries to make your life effortless and forces you to get rid of the habit to program using another language😏.

bin helps you without any loops convert the number to a binary representation.


              1234
            
decimal_number = 9874
binary_number = bin(decimal_number)

print(binary_number)

Indeed, python cares about us, and I suppose we should appreciate it and allow it to care about itself.

0b is a sign for Python that this code is binary;
0o or 0O(both ways are acceptable) means that this code is octal;
0X defines hexadecimal code in the way that we learned (with uppercase letters), by the way, there is also a 0x format, but it defines hexadecimal code in lowercase letters.

Therefore, the code in each system is determined after 0b, 0c or 0X, except decimal obviously.

oct will come in handy when you want to cipher numbers to the octal numeral system.


              1234
            
decimal_number = 25
octal_number = oct(decimal_number)

print(octal_number)

hex is valuable when you want to convert a number to a hexadecimal numeral system.


              1234
            
decimal_number = 1390
hexadecimal_number = hex(decimal_number)

print(hexadecimal_number)

Task

Swipe to show code editor

So far so good ☺️. Here you should convert a number from a decimal numeral system to another that you've learned.Follow this algorithm:

Convert the decimal_number to the binary numeral system.
Convert the decimal_number to the octal numeral system.
Convert decimal_number to the hexadecimal numeral system.
Print the result.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Section 4. Chapter 1

Switch to desktop for real-world practiceContinue from where you are using one of the options below