Awesome solution Marshall!
I don't know a lot of electronic but in january there was a discussion on how to deal with resistor grids in J, this is the link http://www.jsoftware.com/pipermail/programming/2013-January/030870.html , thought i don't know how useful it really is relating to this rosetta problem! ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
