Indicial Notation, Vectors, and Tensors [1]Notation, Indicial
Ordinary vector notation, either classical or in the context of linear algebra does not suffice for everything one wants to do, so I will introduce an indicial notation closely related to that of tensor analysis. It will not be tensor analysis, but the reader familiar with tensors will find...
EinS is a package for Mathematica intended for calculations with indexed objects (e.g., tensors). The package automatically handles dummy indices and Einstein's summation notation, enables one to define new indexed objects and to assign symmetries to that objects. EinS has an efficient ...