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ArrayDiagonalMatrix

IdentityMatrix

FilledSmallSquareIdentityMatrix[n] gives the identity matrix.

FilledSmallSquare See The Mathematica Book: Section 1.8.3 and Section 3.7.1.

FilledSmallSquare See also: DiagonalMatrix, KroneckerDelta, Table.

FilledSmallSquare Related package: LinearAlgebra`MatrixManipulation`.

Further Examples

ArrayDiagonalMatrix