Best calculator for the working engineer

[Logan]

I've been using the 42s for the last few days and have really enjoyed it. It was a little bumpy at first, I think the 35s made some improvements in things like equation entering for the solver and integration (though I like the integration menu) and the alpha input took a little getting used to, but I really like the custom menu and the programming capability is so much more than the 35s. Matrix entering is pretty good too and while complex numbers are entered differently, I don't really see an advantage either way.

In some ways the interface is simple, yet it's also elegant. It's not overwhelming like the WP 34s but still packs in quite a lot of capability. I've worked through the manual and the mechanical engineering book and am now working through the programming examples book.