SymmetricMatrixQ

SymmetricMatrixQ[m] gives True if m is explicitly symmetric, and False otherwise.

Examples

Test for symmetric matrix:

SymmetricMatrixQ[{{1, 2}, {2, 3}}]
(* True *)

Non-symmetric matrix:

SymmetricMatrixQ[{{1, 2}, {3, 4}}]
(* False *)

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