Reviews and Problems with HP 9s Scientific Calculators
Showing 1-10 of 43
HP 9G: A very sorry excuse for an HP graphing or scientific calculator
Ann E. Revelle, Amazon
28 December 2009
Summary: I purchased this unit with some high hopes directly from HP a few years back. At that time it was on on sale far below Amazon's going price range. I believe it was priced so low because 1) they/HP had way too many of these units in stock and 2) because a decision had consiously been made by upper...
Not perfect - But gets it right where it counts - Buy it!
Simon WARDER, Amazon
10 November 2009
Summary: I bought this because my HP-48 is too big to lug around all the time. Keypad has nice tactile feel. Snap-on rigid case and slide-out plasticized 'quick-reference' guide are good (NB I haven't dropped it yet, but it looks fairly durable...).
Summary: I'm begging you not to buy this calculator. It is not just terrible, it is REALLY terrible. Oh, sure, it does a little graphing and will calculate the tax on a new Xbox, but what you can't see in this picture is that the graphing window has fewer pixels than the icons on your desktop (really).
Summary: Good calculator, NOT RPN, that's what I was looking for. I knew the price was too good to be true. I just assumed with an enter button and no equal button it was. I was not deceived by the seller. Just didn't do my research.
Summary: Reverse Polish Notation (RPN) calulators use an <enter> key and do not have an <=>. Look closely at the image for this product: This calculator has an <enter> key and does not have a <=> key, but it's not RPN. The owners manual is useless (written in Spanish).