freeCodeCamp/guide/english/mathematics/golden-ratio/index.md

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2018-10-12 19:37:13 +00:00
---
title: Golden Ratio
---
## Golden Ratio
`PHI = φ = 1.61803398875...`
Two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger quanitity.
Given a > b > 0,
(a + b)/a = a/b = φ
The golden ratio is irrational, and can be represented as (1 + √5)/2.
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