the addon math/lbfgs in j602 has been revitalized to the current J release. It is available for 64-bit linux, windows and raspberry. It supports both l-bfgs and l-bfgs-b. See test scripts in test folder. please try and report any problems.
sorry, no binary for MacOS is scheduled. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
