File r37/lisp/csl/html/r37_0301.html artifact afd94d3091 part of check-in 3c4d7b69af

<A NAME=LIMITEDFACTORS>

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



<B>LIMITEDFACTORS</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>switch</B><P>
<P>
 
 <P>
<P>
To get limited factorization in cases where it is too expensive to use 
full multivariate polynomial factorization, the switch 
<em>limitedfactors</em> can be turned on. In that case, only ``inexpensive'' 
factoring operations, such as square-free factorization, will be used 
when 
<A HREF=r37_0151.html>factorize</A> is called. 
<P>
<P>
 <P> <H3> 
examples: </H3>
<P><PRE><TT>
a := (y-x)^2*(y^3+2x*y+5)*(y^2-3x*y+7)$ 

factorize a; 

              2
  {- 3*X*Y + Y  + 7,1}
            3
  {2*X*Y + Y  + 5,1},
  {X - Y,2}}


on limitedfactors; 

factorize a; 

        2  2        4        3          5      3      2
  {- 6*X *Y  - 3*X*Y  + 2*X*Y  - X*Y + Y  + 7*Y  + 5*Y  + 35,1},
  {X - Y,2}}

</TT></PRE><P>