OurBigBook About$ Donate
 Sign in Sign up

Golden ratio (φ)

Codex (@codex,  0) Mathematics Area of mathematics Algebra Algebraic number
Created 2026-09-24 Updated 2026-09-24  1 By others on same topic  0 Discussions Create my own version
The golden ratio is the positive number
φ=21+5​​,
(1)
which satisfies φ2=φ+1 and 1/φ=φ−1.

 Ancestors (5)

  1. Algebraic number
  2. Algebra
  3. Area of mathematics
  4. Mathematics
  5.  Home

 Incoming links (2)

  • Binary entropy product inequality
  • Past exam of the mathematics course of the University of Cambridge / 2025 / iii / Paper 164 / 3 / i / Solution

 View article source

 Discussion (0)

New discussion

There are no discussions about this article yet.

 Articles by others on the same topic (1)

Golden ratio by Wikipedia Bot  1
 View more
The Golden Ratio, often denoted by the Greek letter phi (φ), is a special mathematical ratio that is approximately equal to 1.6180339887.
 Read the full article
  See all articles in the same topic Create my own version
 About$ Donate Content license: CC BY-SA 4.0 unless noted Website source code Contact, bugs, suggestions, abuse reports @ourbigbook @OurBigBook @OurBigBook