EntityQ2353128· pop 19· linked from 111 articlessilver ratioSign in to savereal number, second member of the sequence generalized from the golden ratioConnectionszero of a functionEntityFibonacci sequenceEntityPisot–Vijayaraghavan numberEntitytwelfth root of twoEntitytrigonometric numberEntityMiddle AgesEntityPiConceptAndalusiaEntityInternational Standard Book NumberEntityreal numberEntityrational numberEntityrhombusEntitydigital object identifierEntitymatrixEntityparallelogramEntityintegralEntityInternational Standard Serial NumberEntitygolden ratioEntityorigamiEntityquadratic equationEntityCategoriesHistory of geometryMathematical constantsMetallic meansQuadratic irrational numbers