.NET Core port of Revert libraries
Large portions of the Mathematics project are ported from Java to C# and taken from Libgdx https://github.com/libgdx/libgdx
Specifically, the Interpolation class and most subclasses, the Circle, Rectangle, and Polygon Classes, and the Vector / Vector2 Classes.
The WordNet and FrameNet projects are ported from Matt Gerber of Michgan State University. High praise for his work. I can't find a direct source link anymore though. If anyone has it, I'll gladly include it.