D.3.1.14 unitmat
................
Procedure from library matrix.lib (see matrix_lib).

Usage:
unitmat(n); n integer >= 0

Return:
nxn unit matrix

Note:
needs a basering, diagonal entries are numbers (=1) in the basering

Example:
LIB "matrix.lib";
ring r=32003,(x,y,z),lp;
print(xyz*unitmat(4));
==> xyz,0,  0,  0, 
==> 0,  xyz,0,  0, 
==> 0,  0,  xyz,0, 
==> 0,  0,  0,  xyz
print(unitmat(5));
==> 1,0,0,0,0,
==> 0,1,0,0,0,
==> 0,0,1,0,0,
==> 0,0,0,1,0,
==> 0,0,0,0,1 

<font size="-1">
&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>.
</font>

</body>
</html>
