sexadecimal notation
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A computer scientist writes a number in sexadecimal notation on a whiteboard.
Definition
- Noun:
- A numeral system using base-16: "Sexadecimal notation" is a system for representing numbers that uses sixteen distinct symbols. It is synonymous with the more common term "hexadecimal notation."
Usage Notes
- This term is a technical synonym for "hexadecimal notation." The prefix "sexa-" derives from Latin, meaning six, and "decimal" refers to ten, together implying sixteen. In modern computing and mathematics, "hexadecimal" is the overwhelmingly preferred term.
- It is used in contexts like low-level programming, digital electronics, and computer science to represent binary-coded values in a more human-readable form.
Examples
- Noun:
- The memory address was displayed in sexadecimal notation for the debugging session.
- Converting a binary number to sexadecimal notation groups bits into sets of four.
Advanced Usage
- As a positional numeral system: In sexadecimal notation, the value of a digit is multiplied by a power of 16 based on its position. The symbols used are typically 0-9 and A-F (or a-f).
- The sexadecimal notation value
1Frepresents the decimal number 31 (116 + 15).*
Variants and Related Words
- Hexadecimal notation (n): The standard modern term for the base-16 numeral system.
- Hex (n, informal): A common abbreviation in computing (e.g., "a hex value").
- Base-16 (n): A descriptive term for the system.
Synonyms
- Hexadecimal notation: The direct and primary synonym.
- Base-sixteen notation: A descriptive synonym.
Related Phrases
- Sexadecimal digit: A single symbol in the system (0-9, A-F).
- Sexadecimal number: A number expressed in this notation.
A computer scientist writes a number in sexadecimal notation on a whiteboard.
Noun
- any notation that uses 16 different characters