Recent content by Warren2007

But if a does not equal c and b does not equal d then how do you convert T[ab/cd] to T[ab/ab].

I'm trying to contract a rank 4 tensor with covariant rank 2 and contravariant rank 2 with four different indices [T[ab][cd]] to get a scalar value T and I have no idea how to do it as I'm sure a or b does not equal c or d. Any help would be much appreciated.