> (38) -> f(a,b,n)==series((a+b*x)^((floor(n*10.0))::INT/10))   
      
   I assume you want to convert Float to Fraction Integer:   
       f(a,b,n)==series((a+b*x)^(n::Fraction Integer))   
      
   > (43) -> f(1,2,3)   
      
   Which version of Axiom are you using? There's no problem   
   on debian version (August 2014).   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)