2               const Tensor2<double, 3, 3> &t2_2, Dg<double, 3, 3> &t3dg_1,
 
    3               const Dg<double, 3, 3> &t3dg_2,
 
    4               Tensor3_antisymmetric<double, 3, 3> &t3as_1,
 
    5               const Tensor3_antisymmetric<double, 3, 3> &t3as_2,
 
    6               const Tensor3_antisymmetric<double, 3, 3> &t3as_3);
 
void test_T3as(const Tensor1< double, 3 > &t1_2, const Tensor2< double, 3, 3 > &t2_2, Dg< double, 3, 3 > &t3dg_1, const Dg< double, 3, 3 > &t3dg_2, Tensor3_antisymmetric< double, 3, 3 > &t3as_1, const Tensor3_antisymmetric< double, 3, 3 > &t3as_2, const Tensor3_antisymmetric< double, 3, 3 > &t3as_3)