From 67d71a628bf5a523cb05b2ec45e74787a7ea53b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Adjemian=20=28Scylla=29?=
 <stephane.adjemian@univ-lemans.fr>
Date: Fri, 29 Nov 2013 18:11:26 +0100
Subject: [PATCH] Fixed bug (isscalar does not assume that the input is
 numeric).

---
 matlab/@dseries/plus.m | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/matlab/@dseries/plus.m b/matlab/@dseries/plus.m
index 823dcc60c..5f74c897a 100644
--- a/matlab/@dseries/plus.m
+++ b/matlab/@dseries/plus.m
@@ -40,7 +40,7 @@ function A = plus(B,C) % --*-- Unitary tests --*--
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
-if isscalar(B)
+if isnumeric(B) && isscalar(B)
     if ~isdseries(C)
         error('dseries::plus: Second input argument must be a dseries object!')
     end
@@ -57,7 +57,7 @@ if isscalar(B)
     return;
 end
 
-if isscalar(C)
+if isnumeric(C) && isscalar(C)
     if ~isdseries(B)
         error('dseries::plus: First input argument must be a dseries object!')
     end