Hi Sean, I'm the one who forked ECJ to .NET a while ago, and I'm only responding to this "feedback" request for one reason: When I was converting the Java code to C# I found that it was all essential to create a very large number of unit tests (500+), to sanity-check what I was doing. Can you imagine the immense benefit to ECJ (not to mention MASON) if time spent checking on float to double conversion was instead directed to building a full suite of unit tests instead? I'm currently very heavily involved in a new open-source project for advanced compression of time series data ("Random Walk Compression"). Otherwise, I would myself contribute time to building a test suite for ECJ. I think this new-fangled idea of rigorous testing might really have some long-term merit. ;-) As a professional "quant" software developer, I can't imagine building and maintaining a sophisticated body of code without it. For those contributing to the project who are non-professional coders, a quick Google search on "Test First" might provide some motivation and enthusiasm. Academics can think of this as "hypothesis before proof". The scientific method would be completely lost without it. Ben Stabile, MCSD http://branecloud.codeplex.com -----Original Message----- From: ECJ Evolutionary Computation Toolkit [mailto:[log in to unmask]] On Behalf Of Sean Luke Sent: Monday, March 24, 2014 10:48 AM To: [log in to unmask] Subject: Any feedback on the float->double conversion in ECJ? The offers of help in testing or double-checking my updates to ECJ have died down and I fear are gone. Anyone have any feedback or test results with regard to the big float->double updates I made recently out on SVN? Sean