%ISMATRIX True if input is a matrix.
%   ISMATRIX(M) returns logical 1 (true) if M is an m-by-n matrix, and
%   logical 0 (false) otherwise.
%
%   See also ISSCALAR, ISVECTOR, ISROW, ISCOLUMN, ISNUMERIC, ISLOGICAL,
%            ISCHAR, ISEMPTY, SIZE.

%   Copyright 2009-2018 The MathWorks, Inc.
%   Built-in function.
