Ken, Unit tests are only as good as their coverage. The danger is in the code that is not in your image. Bill -----Original Message----- From: pharo-project-bounces@lists.gforge.inria.fr [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Ken.Dickey Sent: Sunday, August 16, 2009 9:28 AM To: pharo-project@lists.gforge.inria.fr Subject: Re: [Pharo-project] Complex Number Discussion HELP REQUEST I am working an old, very slow machine and must be missing something. I have browsed senders of #sqrt and run the full test suite with sqrt either answering a complex or giving an error on negative arguments and have not seen a difference. Can someone please send me a/some non-trivial examples of where returning complex results for negative arguments breaks something. Thanks a bunch, -KenD _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project