KnowraTriangular matrixLinked fromLinked fromThe 3 pages that link to Triangular matrix, each with the reason it gives.All 3Related 2Narrower topic 1LU decompositionNarrower topic: LU decomposition is defined by the triangular structure of both factors.Diagonal matrixRelated: A matrix is diagonal precisely when it is both upper and lower triangular.Gauss–Seidel methodRelated: Each sweep solves a triangular system, making the sequential update order explicit.