heksadecimalni

Heksadecimalni is the term used in several South Slavic languages to refer to the hexadecimal numeral system, a base-16 number system. It uses sixteen symbols: 0 through 9 for values zero to nine, and A through F (case-insensitive) for ten to fifteen. Each position represents a power of 16; for example, the hex number 1A3F equals 1×16^3 + 10×16^2 + 3×16 + 15, which is 6719 in decimal.

In computing, hexadecimal is favored because each hex digit corresponds to exactly four binary digits (a nibble), making it convenient for reading and writing binary data. This close relation to binary underpins its widespread use in programming, debugging, and hardware contexts.

Common conventions include the prefix 0x in many programming languages to denote a hex literal, such as 0xFF for 255, or 0x1A2B3C. In web development, hex codes are used to specify colors, for example #FF0000 for red or #00FF7F for a shade of green.

Hexadecimal notation is one of several bases used in mathematics and computer science; it is distinct from decimal and binary, though it serves as a compact bridge between them. The etymology derives from Greek roots referring to the base sixteen.