D.2.6 ring_lib
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Library:
ring.lib
Purpose:
      Manipulating Rings and Maps


Procedures:
* changechar:: make a copy R of basering [ring r] with new char c
* changeord:: make a copy R of basering [ring r] with new ord o
* changevar:: make a copy R of basering [ring r] with new vars v
* defring:: define a ring R in specified char c, n vars v, ord o
* defrings:: define ring Sn in n vars, char 32003 [p], ord ds
* defringp:: define ring Pn in n vars, char 32003 [p], ord dp
* extendring:: extend given ring by n vars v, ord o and name it R
* fetchall:: fetch all objects of ring R to basering
* imapall:: imap all objects of ring R to basering
* mapall:: map all objects of ring R via ideal i to basering
* ord_test:: test whether ordering of R is global, local or mixed
* ringtensor:: create ring R, tensor product of rings s,t,...
* ringweights:: intvec of weights of ring variables of ring r

<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>.
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