Definition

1. Noun:
   • A single symbol in the hexadecimal numeral system: A hexadecimal digit is one of the sixteen distinct symbols used to represent numerical values in base-16 notation. These symbols include the decimal digits 0 through 9 and the letters A through F (or a through f).

Usage

• The term is used to refer to any one of the sixteen symbols in the hexadecimal system. It is a fundamental unit for representing numbers in computing and digital electronics.
• Example: "To represent the decimal number 255, you need two : F and F."

Examples

• Noun:
  • The color code #FF5733 is composed of six hexadecimal digits.
  • Each byte of memory can be represented by two hexadecimal digits.
  • The value 'B' is a hexadecimal digit representing the decimal number 11.

Advanced Usage

• Positional Value: In a hexadecimal number, the value of a depends on its position, multiplied by powers of 16.
  • In the hex number 1A3, the digit 'A' in the 16^1 place has a value of 10 * 16 = 160.

Variants and Related Words

• Hex digit: A common abbreviated form of .
  • The MAC address is a series of 12 hex digits.
• Nibble: A computing term for a 4-bit unit, which is exactly represented by one .
  • A single hexadecimal digit corresponds to one nibble of data.

Synonyms

• Base-16 digit: A descriptive synonym emphasizing the numeral system.
• Hex character: Often used interchangeably in programming contexts, though "character" can be more general.

Related Phrases

• Hexadecimal notation: The system of representing numbers using a base of 16 and .
  • The memory address was shown in hexadecimal notation.
• Hex value: A value expressed using .
  • The error code was an 8-digit hex value.

Noun

1. a digit from 0 to 15 in hexadecimal notation