🌐한국어EnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ506265· pop 39· linked from 346 articles삼각행렬special kind of square matrixAvailable in 38 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaBasqueConnectionseigenvectors and eigenvaluesEntityinvertible matrixEntityCategoriesMatrices (mathematics)Numerical linear algebra