- the tensor returned by metric_tensor() is symmetric

[ginac.git] / ginac / tensor.cpp

diff --git a/ginac/tensor.cpp b/ginac/tensor.cpp
index 8440a56c3151af093628db82f8a24ce9ecba1241..0e6b116250e69281283c012650dc674253c2ff97 100644 (file)
--- a/ginac/tensor.cpp
+++ b/ginac/tensor.cpp
@@ -437,7 +437,7 @@ ex metric_tensor(const ex & i1, const ex & i2)
        if (!is_ex_of_type(i1, varidx) || !is_ex_of_type(i2, varidx))
                throw(std::invalid_argument("indices of metric tensor must be of type varidx"));
 
-       return indexed(tensmetric(), i1, i2);
+       return indexed(tensmetric(), indexed::symmetric, i1, i2);
 }
 
 ex lorentz_g(const ex & i1, const ex & i2, bool pos_sig)