octal digit

Học thuật
Thân thiện
octal digit

An engineer writes an octal digit on a whiteboard.

Definition
  1. Noun:
    • A digit from 0 to 7 in octal notation: An octal digit is any one of the eight numerical symbols (0, 1, 2, 3, 4, 5, 6, 7) used in the base-8 numeral system, known as octal notation.
Usage
  • The term is used specifically in the context of computing, digital systems, and mathematics when referring to the individual symbols that make up an octal number.
  • It describes a single character position within an octal numeral.
Examples
  • Noun:
    • In the octal number 752, the first octal digit is 7.
    • Each octal digit can be represented by exactly three binary digits (bits).
    • The system only accepts valid octal digits from 0 through 7.
Advanced Usage
  • Positional Value: In an octal number, the value of an depends on its position, multiplied by powers of 8.
    • In the octal number 45, the octal digit 4 represents 4 × 8¹ (32), and the octal digit 5 represents 5 × 8⁰ (5).
Variants and Related Words
  • Octal (adjective): Relating to or using a base-8 number system.
    • The file permissions were set using octal notation.
  • Digit (noun): Any of the numerals from 0 to 9, especially when forming part of a number. (This is the general term, while is a specific type.)
    • A binary digit is called a bit.
Synonyms
  • Base-8 digit: A less common but technically accurate synonym.
  • Octit: A rare, specialized synonym sometimes used in computing.
Related Phrases
  • Octal numeral/system: The complete number system that uses .
    • The value was stored in an octal system.
  • Most significant octal digit: The leftmost, highest-value digit in an octal number.
    • The most significant octal digit was corrupted in the data transfer.
  • Least significant octal digit: The rightmost, lowest-value digit in an octal number.
    • Change the least significant octal digit to increment the value by one.
octal digit

An engineer writes an octal digit on a whiteboard.

Noun
  1. a digit from 0 to 7 in octal notation