best HP scientific calculator

[Les Bell]

(05-11-2015 11:39 PM)Marcio Wrote:  Which one (that supports programming) would you recommend?

I think you'll need to tell us more, especially about your intended application - statistics? Physics? Electrical Engineering? Surveying? Navigation?

Also, do you need printing? External backup for large programs? Storage for large data sets?

Once you've done that, stand back and watch the sparks fly! For example, I see Jeff has rated the 15C ahead of the 41CX/42S. While I'm fond of the 15C, the 41's ability to display program steps as text, rather than countable keystroke positions - and, in fact, its alpha capabilities in general - make it the top-ranking machine, imho. But that's all it is - an opinion. Your opinion should be the only one that matters to you, in the end.