"Richard Peters" <r.a.peters@student.tue.nl> wrote in message news:03e901c42dde$d0463c30$38639b83@campus.tue.nl... | Apart from that, this library is released under the boost license. The other | libraries that I know of are released under GPL or have other restrictions. which is very good. GPL is like saying nobody wants to use it. I have some questions. Will it be possible to say 1. typedef boost::rational< big_integer > big_rational. 2. Why is faculty() a part of the interface. I have a generic version of faculty in some prob&stat code I'm doing that I hope would work with big_integer. 3. Are you planning big_float? I would be happy with focus on interface specs and then better implementation later. The C++ standard could really use a "big" library and it's always nice with a version in boost first. br Thorsten