HP-14B

Along with a version of the HP-32S, this version of the HP-14B was developed as part of HP's 50th anniversary celebration. Other than the two anniversary logos on the calculator and one on the case it had the same features as the regular HP-14B including: INPUT & SWAP While this was an algebraic calculator, the INPUT key had some of the functionality of an ENTER key. It was used to enter data in response to prompts and was also used to enter pairs of numbers for two variable statistical functions. In the latter case, the user entered the x value, pressed INPUT, entered the y value and pressed the appropriate stat function key.