🌐EnglishEnglishPortuguêsРусский한국어中文EntityQ7582067· pop 7· linked from 80 articlessquare latticetype of lattice in a two-dimensional Euclidean spaceAvailable in 6 languagesРусскийGreekRomanianUkrainian한국어via Wikidata sitelinks · CC0Connectionswallpaper groupEntitymathematicsEntityCategoriesCrystal systemsEuclidean geometryLattice points