On Friday 17 June 2005 15:16, you wrote: > There is a (less than) comparison of a floating point number to 4.0. Then I'd opt for changing the area of the Argand plane that's used. While we're there, it would be wise to make sure that the output isn't symmetric. -- Dr Jon D Harrop, Flying Frog Consultancy Ltd. Objective CAML for Scientists http://www.ffconsultancy.com/products/ocaml_for_scientists