Polybius square

短语

词形变化

Polybius squares 复数 Polybius squares

释义与例句

n.
  1. 1.

    A character code represented by two sets of six lit torches, used to send messages character by character, in a two point visual fire telegraph. The character code is generated by encoding characters in a grid, where each character generates two numbers, uniquely representing each character as a pair of numbers.

    历史 媒体 工程
  2. 2.

    A grid used for fractionating plaintext characters so that they can be represented by a smaller set of symbols.

    计算机 工程 数学

词源

From Polybius + square (“grid”). It was invented by the Ancient Greek historian and scholar Polybius.

来源：wiktionary