1 files changed, 1 insertions, 1 deletions
diff --git a/vec_pseudo.h b/vec_pseudo.h
index e76cd00..e16c668 100644
--- a/vec_pseudo.h
+++ b/vec_pseudo.h
@@ -599,7 +599,7 @@ namespace vecmathlib {
     }
     real_t sum() const
     {
-      real_t res = R(1.0);
+      real_t res = R(0.0);
       for (int d=0; d<size; ++d) res += v[d];
       return res;
     }