  Tensor analysis has been a widely studied in physics applications including
circuit theory and electric machines. This paper reviews some of the main
features of this type of representation for unbalanced power distribution
systems and discusses its implementation in modern programming languages. A
tensor representation simplifies the nomenclature and calculations in three
phase unbalanced grids, reduces the storage requirement and improves the
computation speed. A fixed point algorithm is proposed for the power flow
solution showing the flexibility of the tensor approach. Simulations in
Matlab/Octave demonstrate the advantages of this representation.
