KnowraIdentity matrixLinked fromLinked fromThe 21 pages that link to Identity matrix, each with the reason it gives.All 21Broader topic 3Related 14Narrower topic 1Compared with 3Gram matrixBroader topic: It is the Gram matrix of an orthonormal collection of vectors.Square matrixBroader topic: It is the multiplicative identity for square matrices of the same order.Diagonal matrixBroader topic: It is the diagonal matrix that leaves every vector unchanged under multiplication.