53 lines
1.3 KiB
Matlab
53 lines
1.3 KiB
Matlab
function i = issquare(A)
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%@info:
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%! @deftypefn {Function File} {@var{i} =} issquare (@var{A})
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%! @anchor{issquare}
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%! @sp 1
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%! If @var{A} is a square matrix, returns its dimension; otherwise return 0.
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%! @sp 2
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%! @strong{Inputs}
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%! @sp 1
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%! @table @ @var
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%! @item A
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%! Matrix.
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%! @end table
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%! @sp 1
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%! @strong{Outputs}
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%! @sp 1
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%! @table @ @var
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%! @item i
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%! Integer scalar.
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%! @end table
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%! @sp 2
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%! @strong{This function is called by:}
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%! @sp 2
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%! @strong{This function calls:}
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%! @sp 2
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%! @end deftypefn
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%@eod:
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% Copyright (C) 2012-2017 Dynare Team
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%
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% This file is part of Dynare.
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%
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% Dynare is free software: you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% Dynare is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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d = size(A);
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if (length(d)==2) && (d(1)==d(2))
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i = d(1);
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else
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i = 0;
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end
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