mparing
% decomposition methods: this constructor allows any decomposition method
% which generates a ktensor CP model to also generate a symktensor. In this
% way, decomposition methods which are non-symmetric in nature may easily
% be applied to symmetric problems.
% 
%% Use ndims and size for the dimensions of a symktensor
% For a given symktensor, |ndims| returns the number of dimensions (i.e. the
% number of modes) of the symmetric Kruskal tensor. |size| returns a size
% array of the symmetric Kruskal 