Not what you asked for, but how about simply rounding it?
2012-10-12 19:06 skrev Thomas Koch:
| 0.9000000000000000222044604925031308084726 | #+TBLFM: @4$1=vsum(@1..@3);%.40f
#+TBLFM: @4$1=round(vsum(@1..@3);%.40f -- Johan Sandblom, MD PhD m +46735521477 What is wanted is not the will to believe, but the will to find out, which is the exact opposite --Bertrand Russell