Her’s a question with the above topic (http://www.rhino3.de/_develop/__v3_plugins/math/index.shtml):
I could install Version 1.2.3 into Rhino 6, and I could set up the toolbar of Math 3DE. It’s working ok at command line, but the connection to _MathLibraryData from the toolbar (folder icon named fx) doesn’t work. Command line input _Mathlibrary does it.
Thanks for hints