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<A NAME=RATARG>

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



<B>RATARG</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>switch</B><P>
<P>
 
 <P>
<P>
When <em>ratarg</em> is on, rational expressions can be given to operators 
such as 
<A HREF=r37_0141.html>coeff</A> and 
<A HREF=r37_0161.html>lterm</A> that normally require 
polynomials in one of their arguments. When <em>ratarg</em> is off, rational 
expressions cause an error message. 
<P>
<P>
 <P> <H3> 
examples: </H3>
<P><PRE><TT>
aa := x/y**2 + 1/x + y/x**2; 
 

         3      2    3
        X  + X*Y  + Y
  AA := -------------- 
             2  2
            X *Y


coeff(aa,x); 

         3      2    3
        X  + X*Y  + Y
  ***** -------------- invalid as POLYNOMIAL
             2  2
            X *Y


on ratarg; 

coeff(aa,x);                
 

   Y  1      1
  {--,--,0,-----}
    2  2    2  2
   X  X    X *Y

</TT></PRE><P>