GNU Awk (gawk) functions for multi-platform and MS-Windows apps
... and library functions in the library are free software. The GPL v3 copyright is documented in each app, function and associated documents. The common URL dependency is to https://www.gnu.org/software/gawk/manual/.
MBDyn_sim_suite is a collection of free pre&post-processing tools and simulation models for the open-source multi-body analysis software MBDyn forming a general purpose simulation environment for structural dynamics with an emphasis on wind turbines.