Summary: Great product, as promised! Works amazingly well and it's very simple to understand and get going. At first it may seem very complicated, but once you review the manual it all starts to come together.
Summary: I have been using it for a few days and now I can understand why this is legendary machine. It took me a few minutes to get my head around RPN, but I am glad I made the effort. Its easy, simple and fast.
great for household accounting. best for learning to program. manual online
29 September 2014
Summary: The HP 12 Calculator is simple and efficient to operate. The RPN operating mode helps here a lot, since input of parenthesis "(" and ")" in mathematical expressions is not needed. Some people may need time to get used to RPN. While it can do many advanced functions in finance such as compounded yield and linear regression, it is also good for simple accounting@home. The main reason to buy it is that it is programmable, and the best environment to learn programming.
Summary: I am a HP fan, with HP laptop and desktops, and have used an HP 12C for more than two decades. I lost my original HP12C less than a year ago and had to replace it with another HP 12C, but the new one's screen goes blank unexpectedly when imputing numbers and prints error messages when there was no error and does this so often now that it must be replaced in less than a years ownership.
A sturdy well built calculator that stands the test of time.
11 September 2014
Summary: I've used a HP 12C since I was 12 years old! The RPN does have a bit of a learning curve but once you master it you will prefer it to algebraic entry. Very sturdy construction that holds up well under continuous use. I still have my original which is over 20 years old and it continues to work great. I bought a second one because it was reasonably priced and it's nice to have an extra just in case.