I'm looking for examples of the use of mathematical operations in OpenSCAD programs. beyond arithmetic https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations is an excellent place to start. I'll be looking for more. Do you know of any other good examples of the use of non-obvious mathematics in an OpenSCAD program? -Pat

Patrick Callahan wrote: >I'm looking for examples of the use of mathematical operations in OpenSCAD programs. beyond arithmetic> >https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations is an excellent place to start.   > >I'll be looking for more.  Do you know of any other good examples of the use of non-obvious mathematics in an OpenSCAD program?  I don't know about non-obvious, but I've tried to collect all the useful trigonometric formulae at: https://willadams.gitbook.io/design-into-3d/2d-drawing#geometry William