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<A NAME=assumptions>

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



<B>ASSUMPTIONS</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>variable</B><P>
<P>
 
 <P>
<P>
After solving a linear or polynomial equation system 
with parameters, the variable <em>assumptions</em> contains a list 
of side relations for the parameters. The solution is valid only 
as long as none of these expression is zero. 
 <P> <H3> 
examples: </H3>
<P><PRE><TT>
solve({a*x-b*y+x,y-c},{x,y});

       b*c
  {{x=-----,y=c}} 
      a + 1


assumptions; 

  {a + 1}

</TT></PRE><P><P>
<P>