0x

Translingual

Etymology

Originated in the notation for hexadecimal numbers in the C programming language (first major revision described in The C Programming Language, published 1978) and its descendants.

Symbol

0x

1. (computing) Indicates that the number that follows is in hexadecimal.
   • 2007, J. R. Gibson, ARM Assembly Language - an Introduction (in English), page 106:

     Available RAM using ARMulator or Evaluator-7T extends from 0x8000 to 0xffff while that using the LPC2102 with the Keil tools is from 0x40000000 to 0x40000fff.

Related terms

• 0b (binary)
• 0 / 0o (octal)