This software is freely available, but we expect that all publications describing work using this software , or all commercial products using it, quote at least one of the references given below. This software is released under the "New BSD License" (aka "Modified BSD License" or "3-clause license").You are welcome to grab the full Unix distribution, containing source code, Makefiles and User Guide.
L-BFGS-B was upgraded on August 2, 2011 from version Lbfgsb.2.1 to version Lbfgsb.3.0 (see reference 3. below).
Click here to download L-BFGS-B version Lbfgsb.2.1
Click here to download L-BFGS-B version Lbfgsb.3.0
Both versions can be installed using the same commands:
Save the gz file in a fresh subdirectory on your system. To install, first type
gunzip Lbfgsb.m.n.tar.gzto produce a file Lbfgsb.m.n.tar. Then, type
tar -xvf Lbfgsb.m.n.tarto create the directory Lbfgsb.m.n containing the source code, Makefiles and User Guide.
Ciyou Zhu, Richard Byrd, Jorge Nocedal and Jose Luis Morales.Test results comparing L-BFGS-B (version Lbfgsb.2.1) and MINOS can be found here