🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisNederlandsPortuguêsالعربية한국어日本語EntityQ864134· pop 11· linked from 40 articlesbinary quadratic formquadratic homogeneous polynomial in two variablesAvailable in 11 languagesEspañolFrançaisDeutschPortuguêsالعربيةBahasa IndonesiaCzechHebrewNederlands한국어Connectionsalgebraic number fieldEntityJoseph-Louis LagrangeEntityCategoriesQuadratic forms