Why are you surprised? limit(1/x^a,x,minf) or for that matter limit(1/x^a,x,inf) will be zero for *any* a>0. In this case, a=83/100. On Wed, Feb 13, 2013 at 7:48 AM, alex <savthegood at gmail.com> wrote: > limit(1/x^(83/100),x,minf);