🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPolskiPortuguêsРусский한국어中文日本語EntityQ1182685· pop 13· linked from 112 articlesdefinite quadratic formquadratic form that is either greater then 0 except for 0 or less then 0 except for 0ConnectionsmathematicsEntityInternational Standard Book NumberEntityCategoriesLinear algebraQuadratic forms