KnowraDiagonal matrixLinked fromLinked fromThe 7 pages that link to Diagonal matrix, each with the reason it gives.All 7Broader topic 1Related 2Narrower topic 2Compared with 2Identity matrixNarrower topic: The identity matrix is a diagonal matrix with every diagonal entry equal to one.Sparse matrixCompared with: It is structurally sparse, with nonzeros restricted to one known diagonal.Hadamard productRelated: Its Hadamard product with another matrix keeps only that matrix's selected diagonal entries.Permutation matrixCompared with: It preserves coordinate directions, whereas a nonidentity permutation matrix rearranges them.Degree matrixNarrower topic: The degree matrix is a diagonal matrix whose entries encode graph degrees.Sylvester's law of inertiaRelated: A diagonal matrix displays each squared variable's coefficient directly.Triangular matrixBroader topic: It is both upper and lower triangular.