golden ratio

E337571

The golden ratio is an irrational mathematical constant, approximately 1.618, that appears in geometry, art, nature, and number theory due to its unique proportional properties.

All labels observed (5)

Label Occurrences
golden ratio canonical 2
Golden Section 1
divine proportion 1

How this entity was disambiguated

Statements (67)

Predicate Object
instanceOf algebraic number ⓘ
irrational number ⓘ
mathematical constant ⓘ
ratio ⓘ
real number ⓘ
appearsIn architecture ⓘ
art ⓘ
geometry ⓘ
nature ⓘ
number theory ⓘ
pentagon geometry ⓘ
pentagram geometry ⓘ
phyllotaxis ⓘ
quasicrystals ⓘ
continuedFraction [1; 1, 1, 1, …] ⓘ
decimalExpansionStartsWith 1.6180339887498948482 ⓘ
defines golden rectangle ⓘ
golden section ⓘ
golden spiral ⓘ
hasAlternativeName divine proportion ⓘ
linked to: golden ratio

golden mean ⓘ
linked to: golden ratio

golden section ⓘ
linked to: golden ratio
hasAlternativeSymbol Φ ⓘ
hasApproximateFraction 13/8 ⓘ
21/13 ⓘ
8/5 ⓘ
hasApproximateValue 1.618 ⓘ
1.6180339887 ⓘ
hasConjugate (1 - √5) / 2 ⓘ
hasConjugateName silver ratio (in some contexts) ⓘ
hasExactValue (1 + √5) / 2 ⓘ
hasNameOrigin Greek letter phi ⓘ
hasProperty most irrational number (in sense of continued fractions) ⓘ
hasReciprocal φ - 1 ⓘ
hasSymbol φ ⓘ
isAlgebraic true ⓘ
isFixedPointOf x ↦ 1 + 1/x ⓘ
x ↦ 1/(x - 1) ⓘ
isGreaterRootOf x^2 - x - 1 = 0 ⓘ
isGreaterThan 1 ⓘ
isIrrational true ⓘ
isLessThan 2 ⓘ
isLimitOfRatioOfConsecutiveTerms Fibonacci sequence ⓘ
isMonotonicFunctionOf square root of 5 ⓘ
isPositive true ⓘ
isRatioOf diagonal to side of a regular pentagon ⓘ
side to smaller segment in golden section division ⓘ
isRelatedTo Binet's formula ⓘ
linked to: Fibonacci sequence

Fibonacci numbers ⓘ
linked to: Fibonacci sequence

Lucas numbers ⓘ
plastic number ⓘ
silver ratio ⓘ
isSolutionOf x^2 - x - 1 = 0 ⓘ
isTranscendental false ⓘ
isUsedAs example in Diophantine approximation ⓘ
example in dynamical systems ⓘ
example of worst-approximable irrational number by rationals ⓘ
isUsedIn aesthetic proportion theories ⓘ
design ⓘ
financial market technical analysis ⓘ
logo design ⓘ
visual arts composition ⓘ
reciprocalEquals φ - 1 ⓘ
satisfiesEquation φ = 1 + 1/φ ⓘ
φ^2 = φ + 1 ⓘ
simpleContinuedFraction 1 + 1/(1 + 1/(1 + 1/(…))) ⓘ
squareEquals φ + 1 ⓘ

How these facts were elicited

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

Section d'Or → alternativeName → Golden Section ⓘ
linked to: golden ratio
golden ratio → hasAlternativeName → divine proportion ⓘ
linked to: golden ratio
golden ratio → hasAlternativeName → golden mean ⓘ
linked to: golden ratio
golden ratio → hasAlternativeName → golden section ⓘ
linked to: golden ratio
Wythoff Nim → usesConstant → golden ratio ⓘ