for fortran source code (stripack.f90):
----------------------------------------

ACM Software License Agreement

All software, both binary and source published by the Association for 
Computing Machinery (hereafter, Software) is copyrighted by the 
Association (hereafter, ACM) and ownership of all right, title and 
interest in and to the Software remains with ACM. By using or copying 
the Software, User agrees to abide by the terms of this Agreement. 

Noncommercial Use

The ACM grants to you (hereafter, User) a royalty-free, nonexclusive 
right to execute, copy, modify and distribute both the binary and source 
code solely for academic, research and other similar noncommercial uses, 
subject to the following conditions:

    1. User acknowledges that the Software is still in the development 
stage and that it is being supplied "as is," without any support 
services from ACM. Neither ACM nor the author makes any representations 
or warranties, express or implied, including, without limitation, any 
representations or warranties of the merchantability or fitness for any 
particular purpose, or that the application of the software, will not 
infringe on any patents or other proprietary rights of others.
    2. ACM shall not be held liable for direct, indirect, incidental or 
consequential damages arising from any claim by User or any third party 
with respect to uses allowed under this Agreement, or from any use of 
the Software.
    3. User agrees to fully indemnify and hold harmless ACM and/or the 
author(s) of the original work from and against any and all claims, 
demands, suits, losses, damages, costs and expenses arising out of the 
User's use of the Software, including, without limitation, arising out 
of the User's modification of the Software.
    4. User may modify the Software and distribute that modified work to 
third parties provided that: (a) if posted separately, it clearly 
acknowledges that it contains material copyrighted by ACM (b) no charge 
is associated with such copies, (c) User agrees to notify ACM and the 
Author(s) of the distribution, and (d) User clearly notifies secondary 
users that such modified work is not the original Software.
    5. User agrees that ACM, the authors of the original work and others 
may enjoy a royalty-free, non-exclusive license to use, copy, modify and 
redistribute these modifications to the Software made by the User and 
distributed to third parties as a derivative work under this agreement.
    6. This agreement will terminate immediately upon User's breach of, or 
non-compliance with, any of its terms. User may be held liable for any 
copyright infringement or the infringement of any other proprietary 
rights in the Software that is caused or facilitated by the User's 
failure to abide by the terms of this agreement.
    7. This agreement will be construed and enforced in accordance with the 
law of the state of New York applicable to contracts performed entirely 
within the State. The parties irrevocably consent to the exclusive 
jurisdiction of the state or federal courts located in the City of New 
York for all disputes concerning this agreement.

Commercial Use

Any User wishing to make a commercial use of the Software must contact 
ACM at permissions@acm.org to arrange an appropriate license. Commercial 
use includes (1) integrating or incorporating all or part of the source 
code into a product for sale or license by, or on behalf of, User to 
third parties, or (2) distribution of the binary or source code to third 
parties for use with a commercial product sold or licensed by, or on 
behalf of, User.

Revised 6/98

for python interface:
---------------------
copyright: copyright 2015 by Jeffrey Whitaker.

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation.

THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
