The symengine R package provides an R interface to the SymEngine C++ library. It was written by Jialin Ma, Isuru Fernando and Xin Chen. The R package bundles and redistributes the SymEngine C++ library source under 'src/upstream', which itself carries the following AUTHORS file: All people who contributed to SymEngine by sending at least a patch or more (in the order of the date of their first contribution). You can generate this file by: bin/update_authors.sh Ondřej Čertík Dale Lukas Peterson Thilina Bandara Rathnayake Christopher Dembia Julien Rioux Sushant Hiray Thomas Hisch Vinzent Steinberg Isuru Fernando Peter Brady Shivam Vats Sumith Kulal Sanka Rasnayaka Abinash Meher Govind Sahai AMiT Kumar Francesco Biscani Connor Behan Björn Dahlgren Ralf Stephan Indrek Mandre Abhinav Agarwal Akash Trehan Srajan Garg Abhimanyu Siwach Pradyot Prakash malayaleecoder Nishant Nikhil Zhang Yuning Charles Chen Matthew Luszczak Iris Lui Rajith Vidanaarachchi Kunal Singh Vic Luo James Stojic Arihant Parsoya Ritesh Kumar Shikhar Jaiswal Vishu Sidana Siddharth Bhat Tao He Chad Mills Jean-Paul Pelteret Ranjith Kumar Kv Manohar Kanchana Ruwanpathirana Melanka Saroad Dirk Reusch Gerrit Ansmann Jialin Ma Nilay Pochhi Eeshan Gupta Ziyi Yan Andreas Humenberger Clouds Flowing Sylvain Corlay Kieran Kaempen Alan Hu Rajiv Ranjan Singh Francesco Bonazzi Simon Stelter Brandon Bocklund Marcello Mansueto Steven Lee Roger Luo Jogi Miglani Liam Keegan In addition, the SymEngine C++ library itself contains subcomponents with the following additional copyright holders. See file COPYRIGHTS or inst/COPYRIGHTS for the preserved copyright notices. Copyright (c) 2013-2017 SymEngine Development Team Copyright (2004) Sandia Corporation Copyright (c) 2001, 2002 Enthought, Inc. Copyright (c) 2003-2012 SciPy Developers. Copyright 2014 Google Inc. All rights reserved. Copyright (c) 2016 Manuel Krebber Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc. Copyright 2012-2016 Sascha Kratky Copyright (c) 2010, Ondrej Certik