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The last push of studying numeral systems is learning the format method for strings to convert numbers to different numeral systems.

format() allows you to do the complex substitution, but it goes beyond this course; hence, here you are going to get acquainted with converting numbers using this method. By the way, it is an opportunity for you to pick up the one that you prefer.

This example shows you how decimal numbers can be converted to other numeral systems.

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• {:b} is used to define the binary numeral system;

• {:o} or {:O} (both ways are acceptable) is used to define the octal numeral system;

• {:X} (the hexadecimal number must be defined using uppercase letters) or {:x}(the hexadecimal number must be defined using lowercase letters) is used to define the hexadecimal numeral system.

Subsequently, you should use the following syntax:
{:numeral_system_format}.format argument). This method has a significant benefit it prints your number without 0b, 0o, 0x, only converted number. But unfortunately to convert not decimal numbers you should write 0b, 0o or 0X. The decimal converting is diverse you can use 3 methods 😃: {},{:n} or {:d}

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