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function s = issymmetric (G, option)
%ISSYMMETRIC Determine if a GraphBLAS matrix is real or complex symmetric.
% issymmetric (G) is true if G equals G.' and false otherwise.
% issymmetric (G, 'skew') is true if G equals -G.' and false otherwise.
% issymmetric (G, 'nonskew') is the same as issymmetric (G).
%
% See also GrB/ishermitian.
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
G = G.opaque ;
if (nargin < 2)
option = 'nonskew' ;
end
s = gb_issymmetric (G, option, false) ;
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