diff --git a/matlab/@dynSeries/eq.m b/matlab/@dynSeries/eq.m
new file mode 100644
index 000000000..1850f3e52
--- /dev/null
+++ b/matlab/@dynSeries/eq.m
@@ -0,0 +1,74 @@
+function C = eq(A,B)
+
+%@info:
+%! @deftypefn {Function File} {@var{C} =} eq (@var{A},@var{B})
+%! @anchor{@dynSeries/eq}
+%! @sp 1
+%! Overloads the eq (equal) operator for the @ref{dynSeries} class.
+%! @sp 2
+%! @strong{Inputs}
+%! @sp 1
+%! @table @ @var
+%! @item A
+%! @ref{dynSeries} object.
+%! @item B
+%! @ref{dynSeries} object.
+%! @end table
+%! @sp 1
+%! @strong{Outputs}
+%! @sp 1
+%! @table @ @var
+%! @item C
+%! scalar integer equal to one if a==b, 0 otherwise.
+%! @end table
+%! @end deftypefn
+%@eod:
+
+% Copyright (C) 2013 Dynare Team
+%
+% This file is part of Dynare.
+%
+% Dynare is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% Dynare is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
+
+if nargin~=2
+    error('dynDates::eq: I need exactly two input arguments!')
+end
+
+C = isequal(A,B);
+
+
+%@test:1
+%$ % Define a datasets.
+%$ A = rand(10,3);
+%$
+%$ % Define names
+%$ A_name = {'A1';'A2';'A3'};
+%$
+%$ t = zeros(2,1);
+%$
+%$ % Instantiate a time series object.
+%$ try
+%$    ts1 = dynSeries(A,[],A_name,[]);
+%$    ts2 = ts1;
+%$    a = isequal(ts1,ts2);
+%$    t(1) = 1;
+%$ catch
+%$    t = 0;
+%$ end
+%$
+%$ if length(t)>1
+%$    t(2) = dyn_assert(a,1);
+%$ end
+%$ T = all(t);
+%@eof:1
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