heksakoodina

Heksakoodina is a term used to describe data represented in hexadecimal notation, i.e., base-16. In Estonian technical usage, the adverbial form heksakoodina refers to presenting values as hex codes rather than in decimal form. Hexadecimal notation uses sixteen symbols: 0–9 and A–F, where each hex digit corresponds to four binary bits. Two hex digits make up one byte.

Hex codes are common in several areas of computing. In web design, colors are frequently specified as hex codes in the form #RRGGBB or the shorter #RGB, where the pairs (or digits) encode red, green, and blue intensities. In programming and debugging, memory addresses and binary data are often displayed as hex bytes in hex editors and dumps. Unicode code points are typically written in hexadecimal, for example U+0041 denotes the character 'A'. Many programming languages represent numeric constants in hex using a prefix such as 0x, for instance 0x2A.

Conversion between hex and decimal involves arithmetic tied to base 16: each digit represents a power of 16, and nibble grouping (4 bits) aligns with hex digits. Advantages of hex include compact representation and straightforward alignment with binary data and bitwise operations; limitations include the potential for confusion with the letters A–F and the need for case-insensitive handling in some contexts.

In technical writing and documentation, heksakoodina is a standard way to describe data values, memory content, and color specifications in a precise, human-readable form.