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Mathematica > Mathematics and Algorithms > Matrices and Linear Algebra > Parts of Matrices > Diagonal >

BUILT-IN MATHEMATICA SYMBOL

Diagonal

Diagonal[m]
gives the list of elements on the leading diagonal of the matrix m.

gives the elements on the k

diagonal of m.

For positive k, Diagonal gives diagonals above the leading diagonal. Diagonal gives diagonals below.

Give the diagonal elements of a matrix:

Give diagonals one element above and below the leading diagonal:

Give a diagonal of a nonsquare matrix:

Give the diagonal elements of a matrix:

Out[1]=

Give diagonals one element above and below the leading diagonal:

Out[1]=

Out[2]=

Give a diagonal of a nonsquare matrix:

Out[1]=

Subdiagonals and superdiagonals: