EntityQ864134· pop 11· linked from 40 articlesbinary quadratic formSign in to savequadratic homogeneous polynomial in two variablesConnectionsalgebraic number fieldEntityJoseph-Louis LagrangeEntityDiophantus of AlexandriaEntitydiscriminantEntityideal class groupEntitymathematicsEntityCarl Friedrich GaussEntityLeonhard EulerEntityInternational Standard Book NumberEntityDavid HilbertEntitycomplex numberEntityintegerEntityBrahmaguptaEntityPierre de FermatEntitymatrixEntityElementsEntitygroupEntityG.H. HardyEntitygreatest common divisorEntityRichard DedekindEntityCategoriesQuadratic forms