golden ratio

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English[edit]

A pentagram colored to distinguish its line segments of different lengths. The four lengths are in golden ratio to one another.

Noun[edit]

golden ratio (plural golden ratios)

  1. (geometry) The irrational number (approximately 1.618), usually denoted by the Greek letter φ (phi), which is equal to the sum of its own reciprocal and 1, or, equivalently, is the square root of the sum of itself and 1.
    Synonyms: golden number, golden section

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See also[edit]

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