Artifact e90e4aa00eb555a38f19da970e1cf85c3ac5333e46608958091494893a3543c9:

• Executable file r37/lisp/csl/html/r37_0368.html — part of check-in [f2fda60abd] at 2011-09-02 18:13:33 on branch master — Some historical releases purely for archival purposes

  git-svn-id: https://svn.code.sf.net/p/reduce-algebra/code/trunk/historical@1375 2bfe0521-f11c-4a00-b80e-6202646ff360 (user: arthurcnorman@users.sourceforge.net, size: 1856) [annotate] [blame] [check-ins using] [more...]

<A NAME=groebner>

<TITLE>groebner</TITLE></A>
<b><a href=r37_idx.html>INDEX</a></b><p><p>



<B>GROEBNER</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
<P>
 
 <P>
<P>
 <P> <H3> 
syntax: </H3>
<em>groebner</em>({<em>exp</em>, ...}) 
<P>
<P>
<P>
<P>
where {<em>exp</em>, ... } is a list of 
expressions or equations. 
<P>
<P>
The operator <em>groebner</em> implements the Buchberger algorithm 
for computing Groebner bases for a given set of 
expressions with respect to the given set of variables in the order 
given. As a side effect, the sequence of variables is stored as a REDUCE list 
in the shared variable 
<A HREF=r37_0371.html>gvarslast</A> - this is important in cases 
where the algorithm rearranges the variable sequence because 
<A HREF=r37_0370.html>groebopt</A> 
is <em>on</em>. 
<P>
<P>
 <P> <H3> 
examples: </H3>
<P><PRE><TT>
   groebner({x**2+y**2-1,x-y}) 

  {X - Y,2*Y**2 -1}

</TT></PRE><P> <P> <H3> 
related: </H3>
<P>
 _ _ _ 
<A HREF=r37_0390.html>groebnerf</A>operator 
<P>
 _ _ _  
<A HREF=r37_0371.html>gvarslast</A> variable 
<P>
 _ _ _  
<A HREF=r37_0370.html>groebopt</A> switch 
<P>
 _ _ _  
<A HREF=r37_0372.html>groebprereduce</A> switch 
<P>
 _ _ _  
<A HREF=r37_0373.html>groebfullreduction</A> switch 
<P>
 _ _ _  
<A HREF=r37_0374.html>gltbasis</A> switch 
<P>
 _ _ _  
<A HREF=r37_0375.html>gltb</A> variable 
<P>
 _ _ _  
<A HREF=r37_0376.html>glterms</A> variable 
<P>
 _ _ _  
<A HREF=r37_0377.html>groebstat</A> switch 
<P>
 _ _ _  
<A HREF=r37_0378.html>trgroeb</A> switch 
<P>
 _ _ _  
<A HREF=r37_0379.html>trgroebs</A> switch 
<P>
 _ _ _  
<A HREF=r37_0395.html>groebprot</A> switch 
<P>
 _ _ _  
<A HREF=r37_0396.html>groebprotfile</A> variable 
<P>
 _ _ _  
<A HREF=r37_0397.html>groebnert</A> operator 
<P>
<P>
<P>