If if I use mpf_t's to do division and I divide 1.0 / 10.0 I get the correct answer. If I try 1.0 / 11.0 I get 0.0 no matter how high I set the precision of the numerator. Could there be a problem with the library I built or am I using this type of number incorrectly? Regards Chris Saunders chris.saunders@sympatico.ca