% @SPTENMAT
%
% Files
%   aatx     - Implicitly compute A * A' * x for sptenmat.
%   disp     - Command window display of a sptenmat.
%   display  - Command window display of a sptenmat.
%   double   - Convert a sptenmat to a sparse matrix.
%   end      - Last index of indexing expression for sptenmat.
%   full     - Convert a sptenmat to a (dense) tenmat.
%   nnz      - Return number of nonzeros in a sptenmat.
%   norm     - Frobenius norm of a sptenmat.
%   size     - Return size of sptenmat.
%   sptenmat - Matricized sparse tensor stored as a sparse 2D array.
%   subsasgn - Subscripted assignment for sptenmat.  
%   subsref  - Subscripted reference for a sptenmat.
%   tsize    - Tensor size of sptenmat.
%   uminus   - Unary minus (-) for sptenmat.
%   uplus    - Unary plus (+) for sptenmat.
