Basin is copyright its contributors and is licensed under either of Apache
License, Version 2.0 or the MIT license, at your option. See LICENSE-APACHE and
LICENSE-MIT for the full texts.

Basin incorporates code derived from third-party software. The required notices
are reproduced below.

================================================================================
PRIMA (https://github.com/libprima/prima)
================================================================================

Basin's Powell-family derivative-free solvers --- COBYLA, NEWUOA, BOBYQA, and
LINCOA (src/solver/{cobyla,newuoa,bobyqa,lincoa}{,.rs}) --- are derived from
PRIMA, Zaikun Zhang's modern-Fortran reference implementation of M. J. D.
Powell's methods. PRIMA is the authoritative source for the exact formulas and
was used as the cross-validation oracle for these solvers. PRIMA is distributed
under the BSD 3-Clause License, whose terms require that the following notice be
retained:

    BSD 3-Clause License

    Copyright (c) 2020--2023, Zaikun ZHANG ( https://www.zhangzk.net )

    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.

================================================================================
L-BFGS-B (https://users.iems.northwestern.edu/~nocedal/lbfgsb.html)
================================================================================

Basin's bound-constrained L-BFGS-B solver (the `Lbfgsb` mode of `Lbfgs`) is a
port of the L-BFGS-B version 3.0 Fortran code (April 2011): the generalized
Cauchy point, subspace minimization, compact-form, and `formk` routines
(src/solver/lbfgs/{cauchy,subsm,formk,compact,backend}.rs) are translated from
`lbfgsb.f`. The code is by Ciyou Zhu, Richard H. Byrd, Peihuang Lu, and Jorge
Nocedal (ACM TOMS Algorithm 778), with the version-3.0 subspace-minimization
improvement and correction by José Luis Morales and Jorge Nocedal. It is
released under the New BSD License (a.k.a. Modified BSD / BSD 3-Clause), whose
terms require that the following notice be retained:

    Copyright (c) 2011, Ciyou Zhu, Richard H. Byrd, Peihuang Lu, Jorge Nocedal,
    and José Luis Morales.
    All rights reserved.

    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 holders 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.
