## What is hex

on Aug 3, 2024 under Miscellaneous

Hex, short for hexadecimal, is a base-16 numbering system used in computing and digital electronics. Here are the key points about hexadecimal:

**Base-16 System:**Hexadecimal uses 16 distinct symbols to represent values. The digits 0-9 represent values 0 to 9, and the letters A-F (or a-f) represent values 10 to 15.**Compact Representation:**Hexadecimal is often used to represent binary data in a more human-readable form. Since one hexadecimal digit corresponds to four binary digits (bits), it is more compact and easier to read compared to binary.**Usage in Computing:****Memory Addresses:**Hexadecimal is commonly used to represent memory addresses in programming and debugging.**Colors in Web Design:**Hexadecimal is used to define colors in HTML and CSS, where a color is specified by a hex code (e.g., #FFFFFF for white, #000000 for black).**Binary Representation:**Hexadecimal is used to represent binary data, such as machine code and encoded data, in a more compact and readable form.

**Conversion:**Conversion between hexadecimal and binary is straightforward:- Binary to Hex: Group binary digits in sets of four (starting from the right) and convert each group to its corresponding hex digit.
- Hex to Binary: Convert each hex digit to its four-bit binary equivalent.

## Table of Contents

### Example

Here’s an example of converting binary to hexadecimal and vice versa:

- Binary:
`1101 1010`

(split into groups of four:`1101`

and`1010`

) - Hexadecimal:
`DA`

(where`1101`

is`D`

and`1010`

is`A`

)

Conversely:

- Hexadecimal:
`1F`

- Binary:
`0001 1111`

(where`1`

is`0001`

and`F`

is`1111`

)

Hexadecimal simplifies the representation and manipulation of binary data, making it a crucial tool in various aspects of computing and digital electronics.