Ration auree

Ration auree
	instantia de: constante mathematic, numero irrational[], numero algebric[], numero construibile[], metallic ratio[], Brjuno number[*]
	;
	Commons: Golden ratio

Le ration auree es un del constantes fundamental del Mathematica, representate per le littera grec "phi" (φ), e illo ha le valor approximate de 1,6180339887498948482045868343656...

  +---------+-----+
  A         D     B

Factos in breve

${AB \over AD}={AD \over DB}=\phi ={{1+{\sqrt {5}}} \over 2}$