Your best bet may be to find an OmniGo locally. I've seen them in Office Supply
stores. (Office Max/Depot, Staples and others) Instead of working with the
OmniGo, ask for the User Guide. Review chapters 11, 12, & 13: Solver, Graph,
Spreadsheet, TVM, Trig, Conv, Math (Exp) and More. HP has a Fax Back on the
features, but the User Guide is more complete.
Bye for now,
John
Lehmus@Jade.Mv.Net