10{
   14 
   18 
   19  
   20 
   21  t2_1(
i, 
j) = t3dg_2(
k, 
i, 
j) * t1_2(
k);
 
   23                  - (t3dg_2(0, 0, 0) * t1_2(0) + t3dg_2(1, 0, 0) * t1_2(1)
   24                     + t3dg_2(2, 0, 0) * t1_2(2)),
   25                "T3dg(k,i,j)*T1(k)(0,0)");
   27                  - (t3dg_2(0, 0, 1) * t1_2(0) + t3dg_2(1, 0, 1) * t1_2(1)
   28                     + t3dg_2(2, 0, 1) * t1_2(2)),
   29                "T3dg(k,i,j)*T1(k)(0,1)");
   31                  - (t3dg_2(0, 0, 2) * t1_2(0) + t3dg_2(1, 0, 2) * t1_2(1)
   32                     + t3dg_2(2, 0, 2) * t1_2(2)),
   33                "T3dg(k,i,j)*T1(k)(0,2)");
   35                  - (t3dg_2(0, 1, 0) * t1_2(0) + t3dg_2(1, 1, 0) * t1_2(1)
   36                     + t3dg_2(2, 1, 0) * t1_2(2)),
   37                "T3dg(k,i,j)*T1(k)(1,0)");
   39                  - (t3dg_2(0, 1, 1) * t1_2(0) + t3dg_2(1, 1, 1) * t1_2(1)
   40                     + t3dg_2(2, 1, 1) * t1_2(2)),
   41                "T3dg(k,i,j)*T1(k)(1,1)");
   43                  - (t3dg_2(0, 1, 2) * t1_2(0) + t3dg_2(1, 1, 2) * t1_2(1)
   44                     + t3dg_2(2, 1, 2) * t1_2(2)),
   45                "T3dg(k,i,j)*T1(k)(1,2)");
   47                  - (t3dg_2(0, 2, 0) * t1_2(0) + t3dg_2(1, 2, 0) * t1_2(1)
   48                     + t3dg_2(2, 2, 0) * t1_2(2)),
   49                "T3dg(k,i,j)*T1(k)(2,0)");
   51                  - (t3dg_2(0, 2, 1) * t1_2(0) + t3dg_2(1, 2, 1) * t1_2(1)
   52                     + t3dg_2(2, 2, 1) * t1_2(2)),
   53                "T3dg(k,i,j)*T1(k)(2,1)");
   55                  - (t3dg_2(0, 2, 2) * t1_2(0) + t3dg_2(1, 2, 2) * t1_2(1)
   56                     + t3dg_2(2, 2, 2) * t1_2(2)),
   57                "T3dg(k,i,j)*T1(k)(2,2)");
   58 
   59  t2_1(
i, 
j) = t1_2(
k) * t3dg_3(
k, 
i, 
j);
 
   61                  - (t3dg_3(0, 0, 0) * t1_2(0) + t3dg_3(1, 0, 0) * t1_2(1)
   62                     + t3dg_3(2, 0, 0) * t1_2(2)),
   63                "T1(k)*T3dg(k,i,j)(0,0)");
   65                  - (t3dg_3(0, 0, 1) * t1_2(0) + t3dg_3(1, 0, 1) * t1_2(1)
   66                     + t3dg_3(2, 0, 1) * t1_2(2)),
   67                "T1(k)*T3dg(k,i,j)(0,1)");
   69                  - (t3dg_3(0, 0, 2) * t1_2(0) + t3dg_3(1, 0, 2) * t1_2(1)
   70                     + t3dg_3(2, 0, 2) * t1_2(2)),
   71                "T1(k)*T3dg(k,i,j)(0,2)");
   73                  - (t3dg_3(0, 1, 0) * t1_2(0) + t3dg_3(1, 1, 0) * t1_2(1)
   74                     + t3dg_3(2, 1, 0) * t1_2(2)),
   75                "T1(k)*T3dg(k,i,j)(1,0)");
   77                  - (t3dg_3(0, 1, 1) * t1_2(0) + t3dg_3(1, 1, 1) * t1_2(1)
   78                     + t3dg_3(2, 1, 1) * t1_2(2)),
   79                "T1(k)*T3dg(k,i,j)(1,1)");
   81                  - (t3dg_3(0, 1, 2) * t1_2(0) + t3dg_3(1, 1, 2) * t1_2(1)
   82                     + t3dg_3(2, 1, 2) * t1_2(2)),
   83                "T1(k)*T3dg(k,i,j)(1,2)");
   85                  - (t3dg_3(0, 2, 0) * t1_2(0) + t3dg_3(1, 2, 0) * t1_2(1)
   86                     + t3dg_3(2, 2, 0) * t1_2(2)),
   87                "T1(k)*T3dg(k,i,j)(2,0)");
   89                  - (t3dg_3(0, 2, 1) * t1_2(0) + t3dg_3(1, 2, 1) * t1_2(1)
   90                     + t3dg_3(2, 2, 1) * t1_2(2)),
   91                "T1(k)*T3dg(k,i,j)(2,1)");
   93                  - (t3dg_3(0, 2, 2) * t1_2(0) + t3dg_3(1, 2, 2) * t1_2(1)
   94                     + t3dg_3(2, 2, 2) * t1_2(2)),
   95                "T1(k)*T3dg(k,i,j)(2,2)");
   96}
FTensor::Index< 'i', SPACE_DIM > i
FTensor::Index< 'j', 3 > j
FTensor::Index< 'k', 3 > k
void test_for_zero(const T &t, const std::string &s)