Number System

A Number is a mathemetical symbols which is used to count and measure. A Number system is defined as a diffrent ways of writing to express numbers. It is the mathematical notation to represent numbers.

In computer programming, numbers play a very importent role.

In this chapter we will explore diffrent types of Numeral systems based on positional notation(also called place value notation). and categrized by redix or base.

In any standard positional numeral system, a number is conventionally written as

$$ (x)_y $$

where:
    x as the string of digits
    y as its base


Side note:

if a number does not contains its base then by default it will be treated as decimal number. so $$ (5)_{10} $$ can be represengted by 5

Standard positional numeral systems

Here is the list of some standara positional numeral systems which frequently used in computer programming languages.

  • Binary Number
  • Octal Number
  • Decimal Number
  • Hexadecimal Number


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