4.10.3 module operations
------------------------

+
addition (concatenation of the generators and simplification)

*
multiplication with ideal or poly, but not `module` * `module`

module_expression [ int_expression , int_expression ]
is a module entry, where the first index indicates the row and
the second the column

module_expressions [ int_expression ]
is a vector, where the index indicates the column


Example:
  ring r=0,(x,y,z),dp;
  module m=[x,y],[0,0,z];
  print(m*(x+y));
==> x2+xy,0,   
==> xy+y2,0,   
==> 0,    xz+yz

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&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; User manual for <a href="http://www.singular.uni-kl.de/"><i>Singular</i></a> version 2-0-4, October 2002,
generated by <a href="http://www.gnu.org/software/texinfo/"><i>texi2html</i></a>.
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