5.1.86 nrows
------------
Syntax:
nrows ( matrix_expression )

nrows ( intmat_expression )

nrows ( intvec_expression )

nrows ( module_expression )

nrows ( vector_expression )
Type:
int
Purpose:
returns the number of rows of a matrix, an intmat or an intvec, resp.
the minimal rank of a free module in which the given module or
vector lives (the index of the last non-zero component).
Note:
Use ncols to get the number of columns of a given matrix or intmat.
Example:
  ring R;
  matrix M[2][3];
  nrows(M);
==> 2
  nrows(freemodule(4));
==> 4
  module m=[0,0,1];
  nrows(m);
==> 3
  nrows([0,x,0]);
==> 2
See
gen;
matrix;
module;
ncols;
vector.
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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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