L-BFGS-B License
================

This directory contains a C translation of L-BFGS-B (version 3.0):

  - Original FORTRAN L-BFGS-B: Ciyou Zhu, Richard Byrd, Jorge Nocedal,
    Jose Luis Morales (Northwestern University).
  - C translation (L-BFGS-B-C): Stephen Becker, 2015
    (stephen.becker@colorado.edu), https://github.com/stephenbeckr/L-BFGS-B-C

L-BFGS-B is released under the "New BSD License" (aka "Modified BSD License"
or "3-clause license").

New BSD License
---------------

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

Citation request (from the original authors)
--------------------------------------------

The authors of L-BFGS-B expect that all publications describing work using
this software, or all commercial products using it, quote at least one of
the references below:

  R. H. Byrd, P. Lu and J. Nocedal. A Limited Memory Algorithm for Bound
  Constrained Optimization (1995), SIAM Journal on Scientific and
  Statistical Computing, 16, 5, pp. 1190-1208.

  C. Zhu, R. H. Byrd and J. Nocedal. Algorithm 778: L-BFGS-B, FORTRAN
  routines for large scale bound constrained optimization (1997), ACM
  Transactions on Mathematical Software, 23, 4, pp. 550-560.

  J.L. Morales and J. Nocedal. Remark on "Algorithm 778: L-BFGS-B, FORTRAN
  routines for large scale bound constrained optimization" (2011), ACM
  Transactions on Mathematical Software, 38, 1.
