That streams can have finite element   
   and in a function I don't know   
   who is the max index  because   
   in a function maxIndex return error   
   when in interactive environment it   
   is ok (so the function one call in a function is not the same than the    
   function one call out the function?   
      
   y:= operator 'y   
   q:=seriesSolve(D(y x, x, 2)=-1,y, [a,b])   
   q1:=eval(q,0)   
   Return for q1   
      [a,a,a] type: Stream Expression Integer   
   But that is not a stream is a list   
   A stream would have to be   
   [a,a,a,..]   
   Where %.1000 return a   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)