DocumentationMathematicaBuilt-in FunctionsLists and MatricesList Construction
IdentityMatrix
IdentityMatrix[n] gives the identity matrix.
See Section 1.8.3 and Section 3.7.1. See also: DiagonalMatrix, KroneckerDelta, Table. Related package: LinearAlgebra`MatrixManipulation`. New in Version 1.
Further Examples