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Three stacked lines, each solid or broken.
Also known as: I Ching lines, Hexagram lines
A trigram is three stacked lines, each either solid or broken, giving eight combinations. Six-line figures made by stacking two trigrams give the sixty-four hexagrams of the Book of Changes, so the notation is a base-two system built long before binary was described as one.
Represent a combination of three lines, each solid or broken, giving eight distinct figures.
Contexts: Religion
Combine into six-line hexagrams giving sixty-four figures, which are the units of the Book of Changes.
Contexts: Religion
Constitute a two-valued positional system, a correspondence noted by Leibniz in the eighteenth century, though the figures were not devised as arithmetic.
Contexts: Religion
Three horizontal lines of equal length stacked with even gaps, each drawn whole or broken into two halves.
A fuller structured visual breakdown is not yet documented for this symbol.