|  |  5.1.103 ncols 
See
 matrix;
 nrows;
 size;
 smatrix.Syntax:ncols (matrix_expression)
 ncols (smatrix_expression)
 ncols (intmat_expression)
 ncols (ideal_expression)Type:int
Purpose:returns the number of columns of a matrix, an intmat, or the number of
given generators of the ideal, including zeros.
Note:size(ideal)counts the number of generators
which are different from zero. (Usenrowsto get the number of rows
of a given matrix or intmat.)Example:|  |   ring r;
  matrix m[5][6];
  ncols(m);
==> 6
  ideal i=x,0,y;
  ncols(i);
==> 3
  size(i);
==> 2
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